HP StorageWorks Performance Advisor XP Software user guide Part number: T1789-96022 First edition: June 2007
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Contents About this guide . . . . . . . . . . . . . . . . . . . . . . . . . Intended audience . . . . . . . . Prerequisites . . . . . . . . . . Related documentation . . . . . . Document conventions and symbols Rack stability . . . . . . . . . . HP technical support . . . . . . . Customer self repair . . . . . . . Product warranties . . . . . . . . Subscription service . . . . . . . HP websites . . . . . . . . . . . Documentation feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction . . . . . . . . . . . . . . . Using the Alarm History screen . . . . . . Viewing and sorting data . . . . . . . Components of the Alarm History screen Buttons and drop-down menus . . . Columns . . . . . . . . . . . . 6 Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 Database Configuration . . . . . . . . . . . . . . . . . . . . . Introduction . . . . . . . . . . . . . . . . . . . Using the Database Configuration screen . . . . . . Purging performance data . . . . . . . . . . Reducing the database size . . . . . . . . . . Configuring the database size . . . . . . . . . Event logging . . . . . . . . . . . . . . . . Backing up, restoring, and resetting the database Database backup . . . . . . . . . . . . Database restore . . . . . . . . . . . . Database reset . . . . .
Logging report details and exceptions . . . . . . . . . . . . . . . . . . . . . . . . . . Components of the View/Generate Reports screen . . . . . . . . . . . . . . . . . . . . . 16 Schedules . . . . . . . . . . . . . . . . . . . . . . . . . . . Introduction . . . . . . . . . . . . . Using the Schedules screen . . . . . . Creating a schedule . . . . . . . Enabling email notifications . . . . Deleting a schedule . . . . . . . Components of the Schedule screen 17 Performance Estimator . . . . . . . . . .
D Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . 151 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153 I Search . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 Supportability matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figures 1 ..HP StorageWorks CommandView XP screen . . . . . . . . . . . . . . . . . . . . 20 2 ..Grid Display query screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3 ..Grid Display screen 22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 ..RAID Group Information dialog box . . . . . . . . . . . . . . . . . . . . . . . 23 5 ..Port Data dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 6 ..Summary by RG . . . . . . . . . . . . . . . . . . .
39 ..Groups tab on Security screen . . . . . . . . . . . . . . . . . . . . . . . . . . 99 40 ..Create New User . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 ..Group Membership details for a new user . . . . . . . . . . . . . . . . . . . . . 100 100 42 ..General tab on Properties screen . . . . . . . . . . . . . . . . . . . . . . . . . 101 43 ..Members tab on Properties screen . . . . . . . . . . . . . . . . . . . . . . . . 102 44 ..Charts screen . . . . . . . . . . . . . . . . . .
81 ..xpdevicemap command . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149 82 ..Command Device file name appended with (GUID) . . . . . . . . . . . . . . . . .
Tables 1 ..Document conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 ..Relationship between GLPR, CUs and LDEVs . . . . . . . . . . . . . . . . . . . . 14 22 3 ..Grid Display screen drop-down menus . . . . . . . . . . . . . . . . . . . . . . 24 4 ..XP48/128 (1 ACP Pair) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 5 ..XP 48/128 (2 ACP Pairs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 6 ..XP 256/512/1024 . . 7 ..XP 12000 . . . . . . 8 ..
About this guide This guide provides an overview of the main screens of Performance Advisor XP (PA XP). Each chapter describes the main functions of each screen so that you can use PA XP effectively and efficiently.
Document conventions and symbols Table 1 Document conventions Convention Element Blue text: Table 1 Cross-reference links and email addresses Blue, underlined text: http://www.hp.
WARNING! To • • • • • reduce the risk of personal injury or damage to equipment: Extend leveling jacks to the floor. Ensure that the full weight of the rack rests on the leveling jacks. Install stabilizing feet on the rack. In multiple-rack installations, fasten racks together securely. Extend only one rack component at a time. Racks can become unstable if more than one component is extended. HP technical support For worldwide technical support information, see the HP support website at: http://www.hp.
• • • • http://www.hp.com http://www.hp.com/go/storage http://www.hp.com/service_locator http://www.hp.com/support/manuals Documentation feedback HP welcomes your feedback. To make comments and suggestions about product documentation, send a message to storagedocs.feedback@hp.com. All submissions become the property of HP.
1 HP StorageWorks Performance Advisor XP 3.3 Overview HP StorageWorks Performance Advisor XP (PA XP) 3.3 is an Internet application that collects and monitors real-time performance of HP StorageWorks XP disk array products. You can use the simple, browser-based interface of Performance Advisor XP to customize performance data collection and set performance alarms.
HP StorageWorks Performance Advisor XP 3.
2 Using Performance Advisor XP Launching Performance Advisor XP HP StorageWorks Performance Advisor XP (PA XP) can be used as a standalone application or with HP StorageWorks Command View XP. To start using the application and viewing data, complete the following steps: 1. Log in to PA XP by typing the following address in a web browser: http(s)://[server name]/pa. NOTE: The PA XP URL is case-sensitive. 2. Enter the user name and password for PA XP.
Figure 1 HP StorageWorks CommandView XP screen NOTE: If you are accessing PA XP through CV XP, then you need not log into PA XP again. Refreshing Performance Advisor XP screen To refresh the information in PA XP, log out of PA XP and log in again. To obtain the latest data on the Configuration screens, click the Configuration tab on the main window of PA XP.
3 Grid Display Introduction The Grid Display screen offers a snapshot view of LDEVs and component performance data. Using this screen, you can view and monitor a variety of data about your array(s). Use the drop-down menus in the Grid Display query screen, as shown in Grid Display query screen, to refine the results displayed in the Grid Display screen. Or you can select all the required items in the fields (default). By default an Array ID is selected.
After you click Request Data, the system retrieves the requested data and displays the results of your query in the Grid Display screen. To view the details of the Grid Display query screen components, see Table 10. You can have 16384 logical devices (LDEVs) per array in a XP12000 and XP10000. To increase the number of LDEVs use, Global Logical Partition (GLPR). You can have four GLPRs per array, each GLPR has 64 control units (CUs), and each CU has 256 LDEVs, making a total of 16384 LDEVs per GLPR.
The Grid Display screen has several columns of data within a scrolling list box. When you query, you can view the first 1000 records. If there are more than 1000 records, the navigation buttons are enabled. The data is displayed in either black, blue, or red text. Black text indicates that no additional information is available for that field. Blue text indicates hot links. Double-click the blue text to launch a separate browser with information about the item.
Figure 5 Port Data dialog box Click IO/s Chart or MB/s Chart to display the Performance History screen. You can view the data in any of the following Chart Style from the drop-down menu: • bar chart • line chart • stackable chart Table 3 Grid Display screen drop-down menus Drop-down Menu Description Show Array Shows a specific array or all arrays. Show Host Shows a specific host or requested hosts. Show RAID Group Enter the physical location of the drive.
backend transfer values, for all of the LDEVs on a given RAID group or port, and presents the data in a single line. In the same line, it also displays the percentage of the Raid Group utilization random read, random write, random write parity, sequential read, sequential write, sequential write parity, and the overall RAID group percentage utilization (sum of the above percentages) on a given RAID group or port, as shown in Summary by RG.
When you request a port summary report, the total I/Os displayed may not be equal to the sum of I/Os across each of the ports. This can occur if multiple paths to an LDEV exist. The port I/O summary indicates the I/O ceiling values across the ports. It does not indicate the absolute or accurate I/O rate across the ports.
Figure 9 SLPR - Ports tab The Ports tab, shown in SLPR - Ports tab, displays the range of IOs, and range of minimum MB per second for each port of the selected SLPR. CLPR detail view Double-click a CLPR value on the Grid Display screen to display the detail view for that CLPR in a separate browser window. For information on CLPR, see Cache logical partitions (CLPRs) in Appendix A.
Figure 11 RAID Group detail view In RAID Group detail view, the line above the table indicates the hierarchical information of the selected RAID group. In this figure, RAID group 65-12 belongs to disk array serial number 10227, SLPR1, and CLPR2. The RAID group detail view displays data transfer information, backend transfer information, the average read response, the max read response, the average write response, and the maximum write response time for each LDEV of the selected RAID group.
Figure 13 Journal Status Array mapping To correctly map the ACP and CHIP pairs for your specific array, use the information in the following tables: Table 4 lists 1 ACP pair for disk array XP48/128. NOTE: The cards are lettered A-M, omitting I. Table 4 XP48/128 (1 ACP Pair) B, L ACP Pair 1 ACP B = 0; L = 4 C, G CHIP Pair 1 Chip C = 0; G = 4 D, J CHIP Pair 2 Chip D = 1; J = 5 F, K CHIP Pair 3 Chip F = 2; K = 6 Table 5 lists the 2 ACP pairs for disk array XP48/128.
Table 6 XP 256/512/1024 A, M ACP Pair 1 ACP A = 0; M = 4 B, N ACP Pair 2 ACP B = 1; N = 5 L, X ACP Pair 3 ACP L = 2; X = 6 K, W ACP Pair 4 ACP K = 3; W = 7 E, Q CHIP Pair 1 Chip E = 0; Q = 4 F, R CHIP Pair 2 Chip F = 1; R = 5 G, T CHIP Pair 3 Chip G = 2; T = 6 H, U CHIP Pair 4 Chip H = 3; U = 7 A, M CHIP Pair 5 Chip A = 8; M = 12 B, N CHIP Pair 6 Chip B = 9; N = 13 L, X CHIP Pair 7 Chip L = 10; X = 14 K, W CHIP Pair 8 Chip K = 11; W = 15 Table 7 lists the 2 ACP pairs for
Table 9 XP24000 1AU/2MU 1AL/2ML DKA Set 1 DKA AU=0 , AL=1, DKA MU=8, ML=9 1BU/2NU 1BL/2NL DKA Set 2 DKA BU=2, BL=3 DKA NU=10,NL=11 1LU/2XU 1LL/2XL DKA Set 3 DKA LU=4, LL=5 DKA XU=12,XL=13 1KU/2WU 1KL/2WL DKA Set 4 DKA KU=6, KL=7 DKA WU=14,WL=15 1EU, 2QU 1EL, 2QL CHA Pair 1 CHA EU=0, EL=1 CHA QU=8,QL=9 1FU,2 RU 1FL,2 RL CHA Pair 2 CHA FU=2,FL=3 CHA RU=10,RL=11 1GU, 2TU 1GL, 2TL CHA Pair 3 CHA GU=4,GL=5 CHA TU=12,TL=13 1HU,2UU 1HL,2UL CHA Pair 4 CHA HU=6,HL=7 CHA UU=14,UL=15 1AU,2MU 1A
Table 10 Grid Display query screen components Component Description Array ID (drop-down menu) The serial number of the array. Provides the option to display information for a particular array only. ACP Pair (drop-down menu) The identification number of the Array Control Processor pair. Provides the option to display information for a particular ACP pair or all ACP pairs. Host Group (drop-down menu) The name of the host group (does not apply to XP48, XP256, or XP512 arrays).
Component Description Avg Write Resp The average write response time, in millisecond, for the LDEV. Backend Transfer The total number of tracks transferred on the backend. BC Vol 0 The Business Copy Volume 0 mode. (See * below the table.) BC Vol 1 The Business Copy Volume 1 mode. (See * below the table.) BC Vol 2 The Business Copy Volume 2 mode. (See * below the table.) Bypass Count Count in Bypass Cache Mode. Cache Size (GB) The total cache size in gigabytes.
Component Description Backend Transfer Non-Sequential Reads The number of writes transferred on the backend to the LDEV. Backend Transfer Writes The number of writes transferred on the backend to the LDEV. Display type (drop-down menu) Indicates the type of information that is displayed.Open System = Displays the open system columns. Mainframes = Displays the mainframe columns. Combined = Displays the open system columns and the mainframe columns. DFW Count Disk Fast Write count.
Component Description Luse Status Logical Unit Size Expansion. The CU:LDEV LUSE, when applicable.blank = The LDEV is not a Luse component M = Master for the Luse group C = Contributor to the Luse group The Luse master LDEV also lists an entry for the contributor. If you are filtering by Host, you cannot see the contributors, because they are not mapped externally. If you show Requested Hosts connected to the array, you can see the contributors in addition to the Luse master.
Component Description Show CLPR Group (drop-down menu) Provides the option to display information for the CLPR groups or for one CLPR group. Show Host (drop-down menu) Provides the option to display information for the requested hosts or for one host. Show Host Group (drop-down menu) Provides the option to display information for the requested host groups or for one host group. Show LUSE Provides the option to display information for the requested Luse or for one Luse.
• ille: (short for illegal) This message appears when the RMLIB call that is used to display the data does not return with the expected values for Simplex (SMPL), Primary Volume (PVOL), or Secondary Volume (SVOL).
Grid Display
4 Array View Introduction Use the Array View screen to monitor the activity of specified array components in real-time. The Array View tree on the left side of the screen provides a hierarchical view of the XP arrays. Clicking on the text or adjacent icons expands the view to provide further information about the array as shown in Array View screen. Figure 14 Array View screen Information is divided into the sections: Array, CHIP Port Activity, and ACP Pair Backend.
• • • • Serial Number: The serial number of the XP array Microcode Version: The array firmware version of the XP array RmLib Version: The Raid Manager Library version installed on the host machine* DKC Time: The timestamp of when the latest performance data collection for the DKC component completed • Raid Group Time: The timestamp of when the latest performance data collection for the Raid group component/s completed • Port Time: The timestamp of when the latest performance data collection for the Port co
NOTE: The mix CHIP shows only eight ports and four MPs though there are eight MPs on that board. The remaining four behave as ACP MPs. The XP24000 disk array has 8 ACP pairs, 32 CHIPs, and 4 MPs per port. If configuration data is collected through the in band mode for array configured with external storage volumes, the RAID group information of the external storage volume is displayed as Ext-RdGp.
10 busiest LDEVs/Ports To view the 10 busiest LDEVs and Ports for the selected array, click the Array Frontend Total group box on the Array View screen. The details for LDEVs and Ports are displayed in a new browser window, as shown in 10 busiest front end LDEVs and 10 busiest front end Ports. Figure 16 10 busiest front end LDEVs Figure 17 10 busiest front end Ports If the number of components are less than ten or if the utilization for them is zero, the tabs show less than 10 components.
Figure 18 10 busiest backend LDEVs Figure 19 10 busiest backend RAID groups If the number of components are less than ten or if the utilization for them is zero, the tabs show less than 10 components. The 10 busiest LDEVs selected is based on the Backend Transfer metrics and the 10 busiest RAID groups selected is based on the Overall % RAID Group Utilization metrics.
Figure 20 Cache usage chart The chart displays the cache usage, cache writes pending, and the sidefile usage measured in (MBs per 5 seconds) for the selected array. You can select the date and time range using Date/Time Filters, the maximum data points displayed from the drop-down menu and the chart style from the Chart style drop-down menu. Refreshing information Information for the Array View screen is retrieved from the database every 4 minutes and displayed in the tables.
Table 12 Array View screen components Component Description ACPs Array Control Processors. ACP Pair Backend Array Control Processor pair. Array Frontend Total The sum of all CHIP port activities. Array Backend Total The sum of all the ACP pair activities. Bus/Path Utilization percentage of the CHIP and ACP pair for the Cache Memory Bus (referred to as the Control Bus for the XP256) and Shared Memory Bus (referred to as the Data Bus for the XP256).
Array View
5 Alarm History Introduction The Alarm History screen on the Events tab displays data compiled from the database. This screen provides a history of XP array alarm events, as shown in Alarm History screen. Trapped alarms are alarms that the system has generated over time and has stored in the database. You can view trapped alarm information, including type, level, time, and status.
• • • • • • • • Email errors: The system returns anything that is non-zero in the Email Status column. SNMP errors: The system returns anything that is non-zero in the SNMP Status column. Script errors: The system returns anything that is non-zero in the Script Status column. All Errors: The system returns anything that is non-zero in the Email and Unmapped Character Select All in this column to show all items that were sent unsuccessfully.
Viewing and sorting data Each column of the table can be resized by width. Use the scrollbar at the bottom of the table if more data is available than can be seen in a single screen. Click the column headings to sort by that topic. The default sort order is ascending order. Click the column heading again to sort by descending order. Columns are sorted by alphabetical, numerical, or date order, depending on the type of information that appears in the column.
Table 13 Alarm History screen buttons and Drop-Down menus Component Description Continuous Update(button) Click to receive automatic updates of information from the database. Updates occur every five minutes. DKC/Group(drop-down) A list of the arrays that the system is monitoring or the groups that have generated alarms. Error Status(drop-down) Several selections are available to monitor error status.
Columns Table 14 Alarm History screen columns Component Description Array Type The following types are arrays are available: XP512, XP48, XP256, XP128, XP1024, XP10000, XP12000, XP24000, and Unknown. DKC/Grp A list of the arrays, or the name of the group that generate alarms. Email Status SNMP Status These fields show whether the alarm information sent by Email or SNMP was successful, or if errors occurred. If errors occurred, a list of values is displayed for the error type(s).
Alarm History
6 Event Log Introduction The Event Log screen on the Events tab tracks errors and configuration changes, such as changing how long performance data is retained in the database, when data collection was started or stopped, or the details of an alarm configuration. The Event Log screen contains Time, Type, Severity, and Description fields. These fields that display the type of changes that are made and the time when the changes occurred.
• Description: A description of the event. Double-click the text in the Description column to open the Event Summary screen. (If the Event Summary screen does not automatically appear, it might be hidden behind the Event Log screen. Check the task bar at the bottom of your screen.) The information that appears in the Event Summary screen depends on the text that you double-clicked.
Figure 25 Event Log Calendar screen Select the start and end dates and time, and then click OK. Click Cancel to return to the main screen. Filtering by type Use the Type drop-down menu to filter the information by the type of event that occurred. Table 15 lists the types of that events available.
Table 16 Filter Severity Levels Severity Description 1, 2 Debugging messages 3, 4 Normal system operations 5, 6 User-instigated activities (for example, if the user enters the settings that instigate a purge) 7, 8 System errors 9, 10 Natural disasters For example, to receive a report on only those items that experienced system errors or worse, select 7 in this field.
Table 17 Event Log screen components Component Description Description A description of the configuration change or error. Severity (drop-down menu) The severity level of the event. 1, 2 = Debugging messages 3, 4 = Normal system operations 5, 6 = User-instigated activities (for example, if a user enters the settings that instigate a purge) 7, 8 = System errors 9, 10 = Natural disasters Refresh (button) Click to refresh the Event Log screen with current information from the database.
Event Log
7 Host Information Introduction The Host Information screen is located in the Configuration tab in PA XP as shown in Host Information screen. Use this screen to gather information from a specified host for a given array. You can use this information gathered to update the management station database.
Restoring changes If you decide not to make any modifications, click to highlight the appropriate line, and then click Restore Changes. This restores the original information. However, you cannot restore changes if you have already clicked Submit. Unrequesting information on a host To unrequest information on a host, complete the following steps: 1. Select from the list box, the host ID on which you do not want data to run.
3. Click Submit to send the request to the database. The host is removed. Viewing updated information After a request is received by the database, information is run on the selected host. After the information is run, the requested field is set to False and the received field is set to True. Click Submit to see the updated fields. Collecting data from a reconfigured array To collect data from a reconfigured array, complete the following steps: 1.
Host Information
8 Data Collection Configuration The Data Collection Configuration screen is located in the Configuration tab in Performance Advisor XP (PA XP), as shown in Data Collection Configuration screen. Use this screen to configure a command device to collect configuration and performance data for a given array. You can collect data on the performance of RAID groups, disk controller units (DKC), and ports.
NOTE: You must collect configuration data before collecting performance data for the first time. You cannot stop Configuration Data Collection once it is started. Collecting configuration data You can collect configuration data of an array either through the In Band or the Out Band mode. The in band mode uses the Raid Manager Library (RMLib) to collect data of an array. The out band mode uses the Remote Method Invocation (RMI) to collect data of the array from the SVP.
NOTE: You have a choice to restart the configuration data collection before it has completed, if you are collecting the data through the in band mode. NOTE: Performance Advisor reports only those XP Thin Provisioning and Snapshot volumes in an array that are assigned to a pool. A Snapshot volume that is not assigned to a pool but has a path assigned from a port, is grouped under VVOL-Grp. For XP12000, all Snapshot volumes are grouped under Snap-Grp. For more details, see Array View.
Figure 28 Create/View Schedule 5. To view an existing schedule, select a schedule in the Schedule drop-down box. To create a new schedule, enter a name for the schedule in the Enter Schedule Name text box. 6. Check Stagger Schedule to stagger the data collection time. If Stagger Schedule is unchecked, and Frequency is set to 15 minutes, performance data collection every quarter, irrespective of when the schedule is created. For example, if the schedule is created at 10.12 A.M.
NOTE: If you split the External RAID Group, RAID Group, XP Thin Provisioning pool, and Snapshot into two schedules, you will not see the Total I/O, Total MB/s and Total Tracks fields in the Grid Display screen. 8. Depending on what you select in the Components drop-down list, the Components list box is populated. (If you select the component RAID GROUP, a list of RAID groups configured for the array is listed.
NOTE: HP recommends that you set the data collection rate to one hour or less because of management station performance and field rollover. PA XP collects performance data on all LDEVs in the array that are reported to the management station by their respective hosts. The hosts that display their status as Received in the Array Information screen constitute the superset of mapped LDEVs. Performance data collection is not limited to the number of LDEVs that the host station is mapped to use.
If you are collecting performance data for the first time on the array, it takes longer than usual for PA XP to get the data. Subsequent performance data collection on the array is as per the time specified in the Frequency text box. NOTE: To ensure optimal performance and results, the maximum number of LDEVs for data collection is 6000. This is the total number of LDEVs across all arrays that are visible to a particular host agent.
RUNJAVA="/opt/sanmgr/jre/bin/java -DHAGT=1 -Djava.net.preferlPv4Stack=true" to RUNJAVA="/opt/sanmgr/jre/bin/java -DHAGT=1 -Djava.net.preferlPv4Stack=true -Xms100M -Xmx256M" For the host agent on Windows hosts To increase the maximum number of LDEVs for the host agent on a Windows host, complete the following steps: 1. Open the file: \Program Files\Hewlett-Packard\sanmgr\hostagent\ config\hostagentService.cfg 2. Edit the following line: JAVA_OPTIONS="Djava.security.policy=config/sec.
Table 20 Data Collection Configuration screen components Component Description Array IP Address (Text box) The IP address of the array when configuration data is collected through the out band mode. Collect Configuration Data Select to start collecting configuration data on the selected command device. Collect Performance Data Select to start collecting performance data on the selected command device.
Data Collection Configuration
9 Alarm Configuration Introduction The Alarms Configuration screen is located in the Configuration tab in Performance Advisor XP (PA XP) as shown in Alarm Configuration screen. Alarms are conditions that alert designated personnel or programs about a system malfunction, a detected condition, or an error. The Alarm Configuration screen is located under the Configuration tab. Use this screen to create and configure alarm types for specified performance metrics on an XP disk array.
• Specify a specific script to be executed when an alarm is received The Alarm Configuration screen contains several fields and buttons, as shown in Alarm Configuration screen. Figure 29 Alarm Configuration screen List box Table 21 lists the components of the list box in the Alarm Configuration screen. The screen contains the following columns that show alarm configuration templates and alarm types.
Table 21 Alarm Configuration screen columns Component Description Mod An asterisk (*) appears when an alarm is modified. N indicates new alarms. E indicates that an error has occurred. Active YES appears if the alarm is active. NO appears if the alarm is inactive. DKC The identification number of the disk controller (DKC) that is monitored. Item The LDEV or port number. Metric Category The metric category (as specified in the Chart screen) of the alarm type.
Figure 30 Add/Remove Alarm screen Use this screen to perform the following tasks: • Specify either the serial number of the array or the group name in the Array/Group drop-down box. • Specify the category that you want to monitor by using the Category drop-down menu. The following categories are available: • IO Metrics • MB Metrics • Utilization Metrics • Backend Metrics • Choose the metrics (in the Metric Category drop-down menu) related to the category.
NOTE: If you select an item in the Metric drop-down box, pertaining to volumes, the CU drop-down menu displays. The CU drop-down menu displays LDEVs by CU. Selecting a CU displays a list of LDEVs belonging to that CU in the Resources list box. • Use the Alarm Type drop-down menu to specify the alarm type, either Level or Trend. For a description of level and trend alarm types, see Level and Trend alarm types. • Specify the sample count.
Creating an alarm To create an alarm, complete the following steps: 1. Click Add/Remove alarm in the Alarm Configuration screen. 2. In the Array drop-down menu, select an array. 3. In the Category drop-down menu, select a category such as LDEV IO. 4. In the Metric Category drop-down menu, select a metric category such as Total IO. 5. For the alarm type, select either Level or Trend. For more information about this feature, see Level and Trend alarm types. 6.
5. Click Apply Action to apply the attributes of the template to the new alarm. 6. Click Commit/Refresh to save your changes to the database. Enabling an alarm To enable an alarm, complete the following steps: 1. Select the row(s) that you want to configure for the alarm(s). 2. Select the Enable Alarm checkbox. 3. In the Apply Action drop-down menu, select Enable/Disable alarm on selected items. 4. Click Apply Action.
3. If you selected to change either the email or SNMP destination, you must enter a new address in the appropriate fields for those selections. If you selected to change the script file, specify the path name of the batch file that you want to reference. 4. Click Apply Action. 5. Click Commit/Refresh to commit your changes to the database. The new addresses appear in the list box. Disabling VPO In certain cases, enabling VPO may cause all alarm notifications to stop.
6. In the Apply Action drop-down menu, select Change Dispatch Schedule on Selected Items. 7. Click Apply Action. 8. Click Commit/Refresh to save your changes to the database. Disabling an alarm To disable an alarm, complete the following steps: 1. Select the row(s) that you want to configure for the alarm(s). 2. In the Apply Action drop-down menu, select Enable/Disable alarm on selected items. 3. Ensure that the Enable Alarm checkbox is not selected. 4. Click Apply Action.
Component Apply Action (drop-down menu) Description Click the arrow to display a drop-down menu that contain the following items: Apply changes to all attributes on selected items Enable/disable alarm on selected items Change threshold levels on selected items Change dispatch level on selected items Change email destination on selected items Change SNMP destination on selected items Change script file on selected items Alarm Type Two types of alarms are available: Level and Trend.
Component Description Script File (XML) Enter the name of the batch file (in XML format) that you want to execute, depending on the alarm type. SNMP Destination Specify the IP address of the SNMP Management Station where you want to receive new alarm event information. For more information about this feature, HP StorageWorks Performance Advisor XP Software installation guide. Designate the performance metric data value (1, 2, or 3) at which an alarm becomes active.
Alarm Configuration
10 Database Configuration Introduction The Database Configuration screen is located in the Configuration tab in Performance Advisor XP (PA XP) as shown in Database Configuration screen. Use this screen to purge performance data, specify how much disk space you want the database to use, log events at or above a specified severity level, and set the time zone of the management station.
Figure 34 Database Configuration calendar screen After you select a date, click Purge. A Confirmation dialog box appears with the following message: “Click OK to confirm deletion of records. Click Cancelto cancel.” Reducing the database size To reduce the database size after purging, complete the following steps: 1. Stop all PA XP services from: Start-> Programs-> HP Storageworks-> Stop services. 2. In the command prompt go to the directory \HPSS\padb\tools and execute the command DefragmentDB.bat. 3.
NOTE: To adjust the cap placed on the database size, see “Expand the database size to retain up to 32 GB of data” in HP StorageWorks Performance Advisor XP Software installation guide. 2. Click Save to save your change to the database. Event logging To log events that occur at or above a specified level of severity, complete the following steps: 1. Use the drop-down menu to select a number from 5 to 10, with 10 representing the highest level of severity. The default setting is 5.
Database reset At the command line prompt, enter: cd ...\Hpss\padb\tools In the Tools directory, enter: DBRestore. Components of the Database Configuration screen Table 24 lists the components that appear on the Database Configuration screen. Use these components to configure the database. Table 24 Database Configuration screen components Component Description All data for array The serial number of the array from which you want to purge data.
11 Group Configuration Introduction The Group Configuration screen is located in the Configuration tab in Performance Advisor XP (PA XP) as shown in Group Configuration screen. Use this screen to group host and array components, and to view or make comparisons between specific components. For example, if you have a database that is spread across three LDEVs, or if you want to view all LDEVs assigned to a particular port, you must use the Group Configuration screen.
4. In the list box, click to highlight the items to include in your group. 5. In the Group Name field, enter a group name. NOTE: Group names are limited to 24 characters. 6. To finish, click Create Group. For information about viewing the specific characteristics of your groups, see Viewing group configurations. Charting groups Use the Group Configuration screen to create and chart metrics of groups of specific hosts and array components instead of charting the metrics of specific arrays.
Figure 36 Group Details window Components of the Group Configuration screen Table 25 lists the components that appear in the Group Configuration screen. Use these components to configure your groups. Table 25 Group Configuration screen components Component Description ACPs A list of available Array Control Processor Pairs. When creating your group, select all ACPs or individual ACPs in this drop-down menu. Array ID The serial number of the array. Array Type The type of array, such as XP256.
Component Description Groups A list of the groups that are created. Group Details Click to display the characteristics of a particular group. Host Group The user-defined name of the host group. Host ID The user-defined name of the customer’s machine that is connected to the array. Hosts A list of the available hosts. Jrnl Group The identification number of the Continuous Access Journal group. LDEV The identification number of the logical device. LUSE Master Logical Unit Size Expansion.
12 Data Grid Update Introduction The Data Grid Update screen is located in the Configuration tab in Performance Advisor XP (PA XP) as shown in Data Grid Update screen. Use this screen to view fabricated or incomplete records and to modify them. Fabricated records contain no host-to-array connectivity data. The Data Grid Update screen accumulates and displays LDEVs that have unknown host connections. It does not display LUSE components that are fabricated internally.
• LUN: between -1 and 15 • SSID: >= -1 If a value -1 is displayed in any of the columns, you may want to edit the column and submit it to the database. You can also use the Data Grid Update screen to modify or delete records in the database. The following section describes how to modify or delete records. Modifying records To modify a record in the Data Grid Update screen, complete the following steps: 1. Place the cursor in the field where you want to make changes and double-click.
Table 26 Data Grid Update screen components Component Description ACP Pair The identification number for the Array Control Processor Pair. Array The serial number of the array. Deleted An X appears in this column for records that have been deleted. Device File The number of the device file. Emulation An array group is divided into open volumes of the same size. These volumes are referred to as emulation types. Host The name of the host.
Data Grid Update
13 Security Introduction The Security screen is located in the Configuration tab in Performance Advisor XP (PA XP), as shown in Users tab on Security screen. It displays information about users who are authorized to use PA XP and the groups to which users are assigned. NOTE: This screen is available if PA XP has been installed as a standalone product and not if it has been installed along with CV XP. The screen consists of two tabs: Users and Groups.
Figure 38 Users tab on Security screen The Users tab displays a list of user names, which group the user is a member of, and a description of the user. By default there are two kinds of users: administrator and user. The user storageadmin is an administrator user of CV XP and has the same privileges as the administrator user in PA XP. The administrator has the highest privileges, with access to all menu options in PA XP and read and write access to all options.
Figure 39 Groups tab on Security screen Information about the members of the groups is available in the Properties window. Using the Users tab Administrators can use the Security screen to add and remove PA XP users and change passwords to enhance security for the system. General users in a user group can change only their own password and view but not edit the other information in the Security tab. Creating a User To create a new user, complete the following steps: 1. Click New in the Users tab.
Figure 40 Create New User 2. Enter the name of the new user and description for the new user in the respective fields. 3. Enter a password for the new user, and confirm it by entering it again. 4. Click Next to go to the Group Membership screen to define the membership for the user. The group membership screen appears, as shown in Group Membership details for a new user. Figure 41 Group Membership details for a new user 5. Using the arrow keys, define the membership for the user.
4. Click OK. The database is updated with the new password. Deleting a User All users except the default users, user and administrator, can be deleted. To delete a user, complete the following steps: 1. Select the user from the list box in the Users tab in the Security screen. 2. Click Delete. 3. Click Yes in the pop-up screen to delete the user. Viewing group properties To view the properties of a group, complete the following steps: 1. Click the Groups tab in the Security screen. 2. Click Properties.
Figure 43 Members tab on Properties screen 4. Click Close to return to the Security screen.
14 Charts Introduction Use the Charts screen in Performance Advisor XP (PA XP) to view the metrics of the array components in a chart format. You can compare the array components based on and within the following categories: • • • • • IO Metrics MB Metrics Utilization Metrics Backend Metrics Response Time Metrics as shown in Charts screen.
3. Use the Metric drop-down menu to refine information for a metric. For example, to view the total input-output operations on LDEV performance, select LDEV Total IO. 4. If you select any item in the Metric drop-down box, pertaining to volumes, the CU drop-down menu displays. The CU drop-down menu lists LDEVs by CU. Selecting a CU displays the list of LDEVs, belonging to that CU, in the Resources list box. 5.
Figure 46 Set Time Values dialog box 13. To clear your settings, click Clear on the Charts screen or proceed to the next step. 14. Click Show Chart. Information is retrieved from the database and appears in the Performance History screen. For more information about the Performance History screen, see Viewing data. The Charts screen supports charts for XP 12000 cache partitions. Table 27 lists the Chart screen selections for showing XP 12000 cache partition charts.
the system can chart only those elements that are specified. After you create a group in the Groups screen, the new group automatically appears in the Array/Group drop-down menu in the Charts screen. Use the Metric Category and Metric drop-down menus to select the metrics that you want to chart for your group.
Metric Category Metric Description IO Metrics, cont.
Metric Category Metric Description THP Pool Total IO THP Pool Total Random IO THP Pool Random Reads THP Pool Random Read Cache Hits THP Pool Random Writes THP Pool Total Sequential IO THP Pool Sequential Reads THP Pool Sequential Read Cache Hits THP Pool Sequential Writes THP Pool Search/ Read Basic Mode THP Pool Search/Read Hits Basic Mode THP Pool Write Basic Mode THP Pool Search/Read Seq Access Mode THP Pool Search/Read Hits Seq Access Mode THP Pool Write Seq Access Mode Each Thin Provisioning (THP)
Metric Category Metric Description Ext-RAID Group Total IO Ext-RAID Group Total Random IO Ext-RAID Group Random Reads Ext-RAID Group Random Read Cache Hits Ext-RAID Group Random Writes Ext-RAID Group Total Sequential IO Ext-RAID Group Sequential Reads Ext-RAID Group Sequential Read Cache Hits Ext-RAID Group Sequential Writes Ext-RAID Group Search/ Read Basic Mode Ext-RAID Group Search/Read Hits Basic Mode Ext-RAID Group Writes Basic Mode Ext-RAID Group Search/Read Seq Access Mode Ext-RAID Group Search/Re
Metric Category MB Metrics Metric Description Total MB Total Random MB Random MB Read Random MB Write Total Sequential MB Sequential MB Read Sequential MB Write Single LDEVs. Maximum Port MB Minimum Port MB Average Port MB Single port. RAID RAID RAID RAID RAID RAID RAID Group Total MB Group Total Random MB Group Random Read MB Group Random Write MB Group Total Sequential MB Group Sequential Read MB Group Sequential Write MB Each RAID group value is the sum of the LDEVs in the RAID group.
Metric Category Utilization Metrics Metric Description ACP ACP ACP ACP ACP ACP ACP ACP ACP ACP ACP ACP ACP ACP ACP ACP ACP ACP ACP ACP ACP ACP ACP ACP ACP ACP ACP For example, ACP Pair BH has B as the left ACP card and H as the right ACP card.
Metric Category Metric Description Cache Usage Util Cache Writes Pending Util Cache Sidefile Usage Util Cache Usage Utilization, Cache Writes Pending Utilization, Cache Sidefile Usage Utilization THP Pool Occupancy The usage rate of a XP Thin Provisioning (THP) pool. The THP Pool Occupancy is displayed only for XP24000. SNAPSHOT Pool Occupancy The usage rate of a Snapshot pool. The Snapshot Pool Occupancy is displayed only for XP 24000.
Viewing data When you click Show Chart in the Charts screen, information is retrieved from the database based on your specifications and appears in graphical format in the Performance History screen as shown in Performance History screen. Figure 47 Performance History screen The Performance History screen shows a graph of 10 sets of data for the metric(s). The graph displays all available data if fewer than 10 collection periods have occurred.
Use the Chart Style drop-down menu to select the type of display in the report. The following options are available: • Stackable Chart: This option, available in two- and three-dimensional views, shows stacked bars that are graphed on top of each other. Use the stacked display to compare totals between different time periods, such as comparing the most recent total IO with the total IO from one hour ago. When the stacked display shows numerical data, such as the LDEV IO, it adds all of the values.
Table 29 Charts screen components Component Description Add Click to show selected metrics in a chart. Add Trend Click to show the rate of change of the selected metrics in a chart. Array/Group A list of the arrays and custom groups about which you can receive information. Clear Click to clear all selections made on the Charts screen. CU Lists the CU numbers. You must select a metric pertaining to volumes to display the CU drop-down list.
Table 30 Performance History screen components Component Description Back/Forward (buttons) Use these four buttons to display data points not currently displayed on the chart. These buttons become available when the total data points retrieved exceed the maximum data points displayed setting. Bar Chart This view shows parallel bars that are graphed side by side. The parallel display is useful for comparing items within the same time period. Select two- or three-dimensional views.
15 View/Generate Reports Introduction The View/Generate Reports screen in the Reports tab enables you to view or generate the following types of reports: array performance, LDEV IOs, cache utilization, CHIP utilization, ACP utilization, Continuous Access Journal, XP Thin Provisioning pool occupancy, and Snapshot pool occupancy. For sample reports, see Appendix B. For details on the arrays supporting XP Thin Provisioning (THP), Snapshot and Continuous Access Journal, see Appendix D.
You can create a new report or delete existing reports from this screen. Click New to create a new report and click Delete to delete an existing report. Creating a report NOTE: You must be a member of the Administrators or StorageAdmins User group to create a report. For information about the User Groups, see the chapter Security. To create a report, complete the following steps: 1. On the View/Generate Reports screen, click New to generate a new report.
Enabling email notifications To receive the alarm notification by email, you must add the SMTP server names to the serverparameters.properties file. To add the SMTP server names, complete the following steps: 1. In the PA XP Management server, navigate to the folder: \hpss\pa\properties 2. Select the serverparameters.properties file and open it using a text editor. 3. Search for the field SMTP_Rpt_Server and enter one or more SMTP server names. See the comments in the serverparameters.
Table 31 View/Generate Reports screen components Component Description Report Name The name of the report file. Array The serial number of the disk array for which report was generated. Report Type The type of report (Array Performance, LDEV IO, Cache Utilization, CHIP Utilization, ACP Utilization, Continuous Access Journal, XP Thin Provisioning pool occupancy, and Snapshot pool occupancy. User Name The user name of the person who generated the report.
16 Schedules Introduction The Schedules screen on the Reports tab enables you to schedule report generation at periodic intervals for an array. For scheduling the reports, choose the array, the report type, and the time. The frequency can be set to daily, weekly, or monthly. The report type options are reports for array performance, LDEV IOs, cache utilization, CHIP utilization, ACP utilization, Continuous Access Journal, XP Thin Provisioning pool occupancy, and Snapshot pool occupancy.
NOTE: You must be a member of the Administrators or StorageAdmins User group to schedule reports. For more information about the User Groups, see Security. Creating a schedule Figure 51 Creating a schedule To create a schedule, complete the following steps: 1. In the Schedules screen, click New. A pop-up screen appears with the following fields, as shown in Creating a schedule: Report information • Report Type: The type of report to be generated. You can select the report from the drop-down list.
• Daily: Select if you want the report generated daily. Data of the past 24 hours is taken for daily reports. • Weekly: Select the day of the week you want the report to be generated. Data of the past 7 days is taken for the weekly reports. • Monthly: You can either select a particular day of the month or a particular week day of the month. Data of the past 30 days is considered for monthly reports. • Day of every month: Enter the day of the month. • The week and day: Select the number and day.
Table 32 Schedule screen components Component Description Array The serial number of the disk array for which report schedule is being configured. Report Type* The type of report (Array Performance, LDEV IO, Cache Utilization, CHIP Utilization, ACP Utilization, Continuous Access Journal, XP Thin Provisioning pool occupancy, and Snapshot pool occupancy. Occurrence The date or day of schedule along with the time. User Name The user name of person who configures the schedule.
17 Performance Estimator Introduction Use the Performance Estimator screen to determine the optimal performance of your arrays based on the loads that you specify by configuring the RAID groups. Subsystem configuration parameters can be rapidly entered, and the results are accurate to within 20%. Performance Estimator focuses on RAID groups, rather than on LDEVs or LUNs. NOTE: Performance Estimator does not support the XP10000/XP12000/SVS200/XP24000 array.
Figure 53 Performance Estimator XP256/512/48 Performance Estimator features explains the Performance Estimator screen.
Figure 54 Performance Estimator features NOTE: For best results, use Internet Explorer on Windows, and use Netscape Navigator 7.0 on HP-UX. Using the Performance Estimator screen To use Performance Estimator, complete the following steps: 1. Select the desired array in the Array List drop-down menu. 2. Select items in the RAID drop-down menus. After you make your selections, a reading appears.
Components of the Performance Estimator screen Table 33 lists the components that appear in the Performance Estimator screen. Table 33 Performance Estimator screen components Component Description ACP Pairs The number of Array Control Processor (ACP) pairs. CHIP Pairs The number of Client Host Interface Processor (CHIP) pairs. Disk Type The number of gigabytes available on the drive. Low Latency Refers to a light load with less delay. Moderate Latency Refers to a heavier load with greater delay.
A Appendix Storage management logical partitions (SLPRs) A disk array can be shared with the multiple organizations and with multiple departments within an enterprise. Therefore, multiple administrators might manage a single disk array. This circumstance creates the potential for an administrator to destroy volumes of other organizations, and it can complicate and increase the difficulty of managing the disk array.
Cache logical partitions (CLPRs) When one disk array is shared with multiple hosts, and one host reads or writes a large amount of data, the host’s read and write data occupies a large area in the disk array’s cache memory. In this situation, the I/O performance of other hosts decreases because the hosts must wait to write to cache memory. To prevent this situation, CLPR partitions the disk array’s cache memory.
B Appendix Reports Performance Advisor supports report generation for the following categories: • • • • • • • • Array performance reports LDEV IO reports Cache utilization reports ACP utilization reports CHIP utilization reports XP Thin Provisioning (THP) pool occupancy Snapshot pool occupancy Continuous Access Journal group utilization The sample reports of are given below.
NOTE: If there are no data points available for the dates selected, a blank chart will be displayed. If all the data values are zero for the dates selected, a chart with a horizontal line along X axis will be displayed in the center. Total I/O Rate by hour of day report The Total I/O Rate by hour of day report shows in a chart format, the number of total read and write I/O operations per second over the over 24-hour period.
Figure 59 Total I/O Rate Detail Sequential I/Os are when data is read from or written to consecutive addresses. Random I/Os are when applications address non-consecutive blocks of data. CFWs are a special class of I/Os generated by HP’s Continuous Access remote mirroring software. NOTE: If there are no data points available for the dates selected, blank chart will be displayed.
Figure 60 Read/Write Ratio For example, the data point of X on the graph indicates X% read activity and (100-X)% of write activity. NOTE: If there are no data points available for the dates selected, blank chart will be displayed. If all the data values are zero for the dates selected, a chart with a horizontal line along X axis will be displayed in the center.
Figure 61 Read/Write Ratio by hour of day NOTE: If there are no data points available for the dates selected, blank chart will be displayed. If all the data values are zero for the dates selected, a chart with a horizontal line along X axis will be displayed in the center. Read/Write Detail report The Read/Write Detail report shows in a chart format, the total I/Os separated into different I/O types.
Figure 62 Read/Write Detail NOTE: If there are no data points available for the dates selected, blank chart will be displayed. If all the data values are zero for the dates selected, a chart with a horizontal line along X axis will be displayed in the center. LDEV IO reports LDEV I/O reports allow you to view the 8 busiest frontend and backend LDEVs and array groups, along with the I/Os on them.
Figure 63 Total Backend I/O Rate First Top 8 LDEVs NOTE: If I/Os have occurred for less then 8 LDEVS in an array, only those LDEVs which have I/Os associated will be displayed in the chart. Total Backend I/O Rate First Top 8 Array Groups report The Total Backend I/O Rate First Top 8 Array Groups report shows in a chart format, the real backend I/O rate for the busiest 8 Array Groups. This can be compared to the potential maximum throughput of the hardware.
Figure 64 Total Backend I/O Rate First Top 8 Array Groups NOTE: If I/Os have occurred for less then 8 LDEVS in an array, only those LDEVs which have I/Os associated will be displayed in the chart. Total Frontend I/O Rate First Top 8 LDEVs report The Total Frontend I/O Rate First Top 8 LDEVs report shows in a chart format, the number of I/O operations performed by the first busiest 8 LDEVs. Total Frontend I/O Rate First Top 8 Ldevs shows a sample Total Frontend I/O Rate First Top 8 LDEVs report for XP1024.
Figure 65 Total Frontend I/O Rate First Top 8 Ldevs NOTE: If I/Os have occurred for less then 8 LDEVS in an array, only those LDEVs which have I/Os associated will be displayed in the chart. Total Frontend I/O Rate First Top 8 Array Groups report The Total Frontend I/O Rate First Top 8 Array Groups report shows in a chart format, the number of I/O operations performed by the 8 busiest Array Groups.
Figure 66 Total Frontend I/O Rate First Top 8 Array Groups NOTE: If I/Os have occurred for less then 8 LDEVS in an array, only those LDEVs which have I/Os associated will be displayed in the chart.
Figure 67 Cache Utilization Cache Write Pending report The Cache Write Pending report shows in a chart format, the amount of data in the cache waiting to be written to a disk. This helps determine the amount of cache available. Cache Write Pending shows a sample Cache Write Pending report for XP1024. Figure 68 Cache Write Pending Percentage Read Hits report The Percentage Read Hits report shows in a chart format, cache read hits as a percentage of the total cache read operations.
Figure 69 Percentage read hits Total Backend Transfer report The Total Backend Transfer report shows in a chart format, the total number of transfers, sequential, random drive-to-cache, and cache-to-drive, per second. Total Backend Transfer report shows a sample Total Backend Transfer report for XP1024.
Figure 71 Total Backend Transfer by Hour of the Day Cache Side File Utilization report The Cache Side File Utilization report shows in a chart format, the cache side file utilization. The cache side file utilization is used for the software Asynchronous Continuous Access XP. It holds the data buffers that have not been acknowledged by the remote host. Cache Side File Utilization shows a sample Cache Side File Utilization report for XP1024.
ACP Utilization report The ACP Utilization report shows in a chart format, the average utilization of the ACP pairs over the entire data collection period. ACP utilization over the entire data collection period shows a sample ACP Utilization report for XP1024. Figure 73 ACP utilization over the entire data collection period ACP Utilization by Hour of the Day report The ACP Utilization by Hour of the Day report shows in a chart format, the average utilization of the ACP pairs over a 24-hour period.
Figure 74 ACP utilization over a 24-hour period CHIP utilization reports The CHIP utilization reports allow you to view in a chart format, the utilization data for all CHIP pairs in the array and the average utilization data for all the CHIP pairs in the array. A sample of each report is given below: CHIP Utilization report The CHIP Utilization report shows in a chart format, the utilization data for all CHIP pairs in the array. CHIP Utilization shows a sample CHIP Utilization report for XP12000.
Figure 75 CHIP Utilization CHIP Utilization by Hour of the Day report The CHIP Utilization by Hour of the Day report shows in a chart format, the utilization data for all CHIP pairs in the array averaged over a 24-hour period. CHIP Utilization by Hour of the Day shows a sample CHIP Utilization by Hour of the Day report for XP12000.
Figure 77 CHIP Processor Utilization In this sample report, the percentage utilization of individual processors (MP) on the CHIP CHA 1E is shown. Similarly a report will be generated for all CHIPs in the array. XP Thin Provisioning (THP) pool occupancy The THP pool occupancy report show the usage percentage of the eight busiest THP pools. NOTE: PA XP reports only those THP volumes in an array that are assigned to a pool.
NOTE: PA XP reports only those Snapshot volumes in an array that are assigned to a pool. Utilization Metric displays Snapshot Pool Occupancy only for the XP24000. Figure 79 Snapshot pool occupancy Continuous Access Journal group utilization The Journal group utilization report shows the utilization percentage of the eight busiest Journal groups.
C Appendix Performance Advisor Configuration and Performance Data Collection Prerequisites for Windows Operating System To overcome device renaming and device remapping issues during data collection, it is recommended to use the Windows globally unique identifier (\\?\Volume{GUID}) to perform configuration and performance data collection instead of the using the device file names.
4. Restart PA XP hostagent services. For example, :\Program Files\Hewlett-Packard\sanmgr\hostagent\sbin> hastart.bat 5. On the management station launch Performance Advisor XP and click on the Configuration tab. Select Host Information tab and click on Request Info followed by Submit. 6. Once the Status column in the Host Information screen is updated with the status Received, click on the Data Collection Configuration tab.
D Appendix Supportability matrix The following matrix displays the supportability of XP Thin Provisioning, Snapshot and Continuous Access Journal on the XP arrays.
Appendix
Index Symbols 10 busiest front-end LDEVs, 42 , 63, 121 A accessing PA XP, 19 ACP Pair summary screen, 40 Alarm Configuration screen, 73 Alarm History screen, 47 alarm notifications configuring, 79 scheduling, 80 alarms changing threshold levels, 79 configuring, 73, 78 configuring threshold levels, 79 creating, 78 disabling, 81 displaying historical data, 47 enabling, 79 scripts, 81 trapped, 47 types, 77 Appendix, 129, 131 Appendix C, 149 Appendix D, 151 Array View screen, 39 arrays charting components, 1
Database Configuration screen, 85 deleting, 121 groups, 90 disabling alarms, 81 disk space requirements, 70 displaying alarm historical data, 47 array activity, 39 authorized groups, 97 authorized users, 97 charts, 103 charts with different data collection rates, 112 fabricated records, 93 group properties, 90, 101 host and array components, 89 incomplete records, 93 LDEVs with unknown host connections, 93 performance data, 21 RAID group details, 23 summary of array components, 24 document conventions, 14 p
Performance Estimator screen, 125 Performance History screen, 113 performance, optimizing, 125 prerequisites, 13 Properties screen, 99 properties, displaying group, 101 purging performance data, 85 tracking configuration changes, 53 errors, 53 trapped alarms, 47 trend-type alarms, 77 R unavailable host-to-array connectivity data, 93 unrequesting information on hosts, 60 updating database, 59 users displaying authorized, 97 Users screen, 97 using, 121 using PA XP as standalone application, 19 with Command
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