HP StorageWorks XP24000 External Storage Software User’s Guide Part number: T5206–96001 First edition: June 2007
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Contents About this Guide . . . . . . . . . . . . . . . . . . . . . . . . . . Intended Audience . . . . . . . . . . Related Documentation . . . . . . . . Document Conventions . . . . . . . . Conventions for Storage Capacity Values Window Illustrations . . . . . . . . . HP Technical Support . . . . . . . . . Subscription Service . . . . . . . . . HP Websites . . . . . . . . . . . . Documentation Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HP StorageWorks XP Snapshot . . . . . . . . . . SNMP Agent . . . . . . . . . . . . . . . . . Examples of Using External Volumes with Other Products Auto LUN Operations . . . . . . . . . . . . . Continuous Access Operations . . . . . . . . . . Continuous Access Journal Operations . . . . . . Business Copy Operations . . . . . . . . . . . XP Snapshot Operations . . . . . . . . . . . . . . . . . . . . 3 Preparing for External Storage Operations System Requirements . . . . . . . . . . . . . . . . .
Configuring Cross-subsystem Path . . . . . . . . . . . . . . . . Changing the Configured Cross-subsystem Path Priority . . . . . . . Canceling the Cross-subsystem Path Configuration . . . . . . . . . Changing the Cross-subsystem Path . . . . . . . . . . . . . . . . Checking the External Volume Details . . . . . . . . . . . . . . . . . LDEV Information Dialog Box . . . . . . . . . . . . . . . . . . Mapping Path Information Dialog Box . . . . . . . . . . . . . . Turning On or Off the Storage System . . . . . . .
Path Status and Examples of Recovery Procedure (For TagmaStore USP Storage System, TagmaStore NSC Storage System) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lightning 9900V Storage System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Path Status and Examples of Recovery Procedure (For Lightning 9900V Storage System) . . . . . Lightning 9900 Storage System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figures 1 ..Unifying Copy Operations between Different Storage Systems . . . . . . . . . . . . 14 2 ..Unifying Connections from a Host to Different Storage Systems . . . . . . . . . . . . 15 3 ..Concept of External Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4 ..External Storage Components . . . . . . . . . . . . . . . . . . . . . . . . . . 19 5 ..Example of Alternate Path Setting . . . . . . . . . . . . . . . . . . . . . . . . 24 6 ..
36 ..SSID Dialog Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 37 ..Set SSID Dialog Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 38 ..Example of LDEV Mapping (Manual) Dialog Box . . . . . . . . . . . . . . . . . . 78 39 ..Configure Cross-subsystem Paths Dialog Box . . . . . . . . . . . . . . . . . . . . 79 40 ..Port Discovery Dialog Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 41 ..
Tables 1 ..Document Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2 ..External Storage Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . 44 3 ..When the Emulation Type of the External Volume is for OPEN . . . . . . . . . . . . 4 ..When the Emulation Type of the External Volume is for Mainframe . . . . . . . . . . 5 ..The Items Clicked in the Volume Operation Tree and the Contents Displayed 45 45 . . . . . . 52 . . . . . . . . . . 53 . . . . . . . . . . .
34 ..System Parameter Settings for Connecting EVA Storage System . . . . . . . . . . . . 124 35 ..System Parameter Settings for Connecting Sun StorEdge 6120/6320 . . . . . . . . . . 126 36 ..System Parameter Settings for Connecting StorageTek FlexLine 380 . . . . . . . . . . 126 37 ..System Parameter Settings for Connecting CLARiiON CX600 . . . . . . . . . . . . . 126 38 ..Maximum Usable Capacity of External Volume . . . . . . . . . . . . . . . . . . . 127 39 ..
About this Guide This user’s guide describes and provides instructions for performing External Storage operations on the HP storage system. The term storage system in this guide refers to an HP StorageWorks XP24000 Disk Array.
HP XP storage systems use the following values to calculate logical storage capacity values (logical devices): • • • • • 1 1 1 1 1 KB (kilobyte) = 1,024 bytes MB (megabyte) = 1,0242 bytes GB (gigabyte) = 1,0243 bytes TB (terabyte) = 1,0244 bytes block = 512 bytes Window Illustrations The windows shown in this guide were displayed on a Windows computer with the Internet Explorer browser. The windows may appear different on your computer depending on the operating system and browser being used.
1 Overview of HP StorageWorks XP External Storage Software External Storage is a program product that enables you to operate multiple storage systems, including the HP StorageWorks XP24000 Disk Array, as if they are all in one storage system. This allows system administrators to easily manage different types of multiple storage systems. For example, External Storage enables you: • To unify copy operations between different storage systems. • To unify connections from a host to different storage systems.
Figure 1 Unifying Copy Operations between Different Storage Systems Unifying Connections from a Host to Different Storage Systems When a system has multiple storage systems, a host usually needs to connect all storage systems. When a system administrator configures the connections from a host to volumes, they need to follow the different instructions depending on the storage systems.
Figure 2 Unifying Connections from a Host to Different Storage Systems XP24000 External Storage Software User’s Guide 15
Overview of HP StorageWorks XP External Storage Software
2 About External Storage Operations This chapter explains the functions and the applications of External Storage. This user’s guide uses the following terms: • An original storage system is called the local storage system. • A connected storage system is called the external storage system (other user’s guides call this the external device). • The volume managed in the local storage system is called the internal volume. • The volume in the external storage system is called the external volume.
Figure 3 Concept of External Storage By mapping an external volume as an internal volume using External Storage as shown in Figure 3 on page 18, it becomes possible to operate the external volume using Remote Web Console as if it is a volume in the storage system.
Figure 4 External Storage Components This section describes the details on the storage systems, cross-subsystem paths, volumes and mapping paths as shown in the above figure. Storage Systems and Cross-subsystem Paths Before using External Storage, connect the Fibre Channel port of the local storage system to the external storage system port with the fibre cable. The route between ports, which is connected with the cable, is called the cross-subsystem path.
This document sometimes uses the term external volume or mapped external volume to mention an internal volume where an external volume is mapped (see B in Figure 4 on page 19), because this internal volume is a virtual representation of an external volume. When you perform mapping, a path is automatically created between an internal volume and an external volume. This path is called a mapping path, which connects one volume with another volume. A cross-subsystem path is a part of a mapping path.
• How to configure external volume groups (see “Registering a Volume to an External Volume Group (ExG)” on page 21). • What external volume attributes to be configured (see “Configuring External Volume Attributes” on page 22). • How to configure cross-subsystem paths (see “Cross-subsystem Paths” on page 23). • How to make volume usable from the local storage system (see “Connecting Mainframe Volumes” on page 29 and section “Connecting Open Systems Volumes” on page 30).
You need to assign numbers to external volume groups. See “External Storage Requirements” on page 43 for details on a maximum number of external volume groups, or a maximum number of volumes to be registered in one external volume group. Configuring External Volume Attributes When you map an external volume as an internal volume, you set the attributes of the external volume.
Cross-subsystem Paths A cross-subsystem path is a route from a local storage system port to an external storage system port. To prepare for possible failures of the cable, the switch, or the channel processor, it is recommended that you create redundant cross-subsystem paths. This redundancy allows you to continue performing the I/O operations to the external volumes when you maintain the cable. You can set up to eight paths. A group of redundant cross-subsystem paths is called a path group.
Figure 5 Example of Alternate Path Setting Figure 6 on page 24 illustrates an example of setting an alternate path when a switch is used. In Figure 6 on page 24, two ports are specified in the local storage system, and connected to the ports in the external storage system through the switch. In this case, two ports of different clusters are specified in the local storage system. Therefore, the setting of the alternate path is enabled.
Figure 7 Example of Unavailable Alternate Path Setting Examples of Switching I/O Execution Paths to Alternate Paths This section describes the case examples of the performance when the I/O execution path is switched to the alternate path for each path mode as follows: • When the path mode is Multi mode. • When the path mode is Single mode. • When the path mode is Single mode and there is at least one alternate path in the Standby status.
Figure 8 When the Path Mode is Multi Mode • When the path mode is Single mode Figure 9 on page 27 shows an example of the case when the path mode is Single mode. When an error occurs in the path that is being used for I/Os, the I/O execution path is switched to the path with the second highest priority. Note: As you restore the path with the priority higher than the currently used path, the I/O execution path is automatically switched to the restored path that has the highest priority.
Figure 9 When the Path Mode is Single Mode • When the path mode is Single mode and there is at least one alternate path in the Standby status Figure 10 on page 28 shows an example of the case when the path mode is Single mode, and there are the alternate paths in the Normal status and the Standby status. Figure 11 on page 29 shows another example of the case when the path mode is Single mode. In the case of Figure 11 on page 29, there are alternate paths in the Standby status only.
Figure 10 Single Mode with Alternate Paths in Normal and Standby 28 About External Storage Operations
Figure 11 Single Mode with Alternate Paths in Standby only Connecting Mainframe Volumes Mainframe volumes, that pre-exist on an external storage system and are accessed by ESCON or FICON channels, cannot connect directly to the storage system as an external volume. The storage system does not recognize these volumes because of the Fibre Channel.
Note: If you format the mapped volume of the external storage system from the external storage system side, the existing data before formatting cannot be assured. When you use the mapped external volume from the mainframe OS, format the mapped volume from the local storage system side. For the procedure of the volume formatting operation and the Write to Control Blocks operation, see the HP StorageWorks XP24000 Virtual LVI/LUN (VLL) and Volume Shredder User’s Guide.
external port and limit the scope to search WWNs. If you can specify which external port to search for, you can reduce the operation time by executing the Port Discovery manually. Volume Discovery is a process to search for and get information about external volumes from the target ports of the external storage system. Volume Discovery is automatically executed after the Port Discovery process.
Figure 12 Storing the New Data in the Mapped External Volume Using Existing Data in the Mapped External Volume To use the existing data in the mapped external volume from the host that is connected to the local storage system: 1. Store the data from the host that is connected to the external storage system to the volume in the external storage system. 2. Map the volume containing data in the external storage system as an internal volume of the local storage system using External Storage.
Figure 13 Using the Existing Data in the Mapped External Volume Interoperability with other Products and Functions You can use the storage system program products to utilize and to manage the external volumes you have set using External Storage. The storage system program products that support the use of mapped external volume are explained in the following subsections. For the operations and notes on each program product, see the respective user’s guides.
• Do not combine LDEVs of multiple external volumes to create a LUSE volume. Only the LDEVs in the same external volume can be used to configure the LUSE volumes. • The external volumes, for which the different Cache Mode is set, cannot be combined to form a LUSE volume.
Universal Replicator for Mainframe Mapped volumes can be used for Universal Replicator for Mainframe. For adjusting volume capacity, see “Adjusting Volume Capacities for Pairs” on page 133. HP StorageWorks XP Business Copy Software Mapped volumes can be used for Business Copy. For adjusting volume capacity, see “Adjusting Volume Capacities for Pairs” on page 133. For the configuration example of Business Copy, see “Business Copy Operations” on page 39.
Note: To migrate the existing data in the mapped external volume to the local storage system volume using Auto LUN, set the emulation type to OPEN-V as you map the volume. The emulation type must be OPEN-V to read out the existing data in the external volume from the local storage system side.
For details on the mapping operation, see “Mapping an External Volume Automatically” on page 69. 2. If you set the emulation type for the open system when you map the volume, the status of the mapped volume automatically becomes Normal. However, the volume formatting processing is not executed automatically. If you need to format the mapped volume, format the volume using the VLL function.
1. Use External Storage to map the volume in the external storage system as an internal volume of the local storage system, which is used as RCU for the Continuous Access Journal operation. You can select the emulation type of the mapped volume as you required. If you select the emulation type for the open system (such as OPEN-V), go to step 2. If you select the emulation type for the mainframe system (such as 3390-3), go to step 3.
Figure 16 Example of the Continuous Access Journal Operation Business Copy Operations Figure 17 on page 40 shows the use of an external volume for the Business Copy operation. In Figure 17 on page 40, the mapped external volume is set as the S-VOL of the Business Copy pair, and the local storage system internal volume is set as the P-VOL of the Business Copy pair. For details on Business Copy, see the HP StorageWorks XP24000 Business Copy Software User’s Guide.
For the volume formatting operation procedure and the Write to Control Blocks operation procedure, see the HP StorageWorks XP24000 Virtual LVI/LUN (VLL) and Volume Shredder User’s Guide. Go to step 4. 4. Set the P-VOL and S-VOL of the Business Copy pair, as shown in Figure 17 on page 40. Figure 17 Example of the Business Copy Operation XP Snapshot Operations Figure 18 on page 41 shows the use of an external volume for the XP Snapshot operation.
Figure 18 Example of the XP Snapshot Operation XP24000 External Storage Software User’s Guide 41
About External Storage Operations
3 Preparing for External Storage Operations This chapter describes the requirements, preparations, and notes on the External Storage operations. System Requirements The system requirements for External Storage are: • Storage system (First storage system) All the necessary hardware and microcode required for External Storage operations must be installed and enabled. In this user’s guide, the first storage system is called local storage system.
Table 2 External Storage Requirements Item Requirement Maximum number of ports in the connected external storage system (WWN is used as a port identification number） 1,024 per port Maximum number of external volumes which can be connected 63,232 volumes can be connected. 4,096 volumes can be connected per port.
Table 3 When the Emulation Type of the External Volume is for OPEN Application HDD Type FC SATA Database Online Transaction Processing (OLTP) Not Recommended Not Recommended File Operation from Host (Both of Read and Write) OK Not Recommended File Operation from Host (Mainly Read) OK OK Backup OK Recommended Archive OK Recommended Table 4 When the Emulation Type of the External Volume is for Mainframe Application HDD Type FC SATA Database Online Transaction Processing (OLTP) Not Recomm
Figure 19 Example of External Volume of 2 TB or Less • You cannot access the data that is stored in the field over the maximum capacity of the external volume. The maximum volume capacity differs depending on the emulation type that you specify at the external volume mapping. See “Required Volume Capacity for Each Emulation Type” on page 127 for more details.
Figure 21 When the External Volume Capacity is Smaller than the Basic Capacity of Specified Emulation Type Guidelines for Mainframe Volumes • If you plan to use the mapped external volume from the mainframe OS (the volume is mapped with the setting of 3380-x or 3390-x mainframe emulation type), you need to select the external volume that consists of one LDEV or you need to adjust the capacity of the external volume to be mapped beforehand.
The examples of external storage system settings which require the re-mapping of external volume are as follows: • Changing WWNs of target ports which connect to the local storage system • Changing the serial number of the external storage system • Changing LUNs of volumes of the external storage system • Reducing the volume capacity of the external storage system so that the volume capacity is smaller than when volume mapping was performed Besides, re-mapping is required for External Storage after you chan
Installing External Storage You need to install External Storage using the license key to perform the External Storage operations on the Remote Web Console computer. To install the External Storage license key: 1. Start the Remote Web Console Java application program for the desired storage system. 2. Enable the External Storage options on the Remote Web Console computer and on each storage system. For detail instructions, see the HP StorageWorks XP24000 Remote Web Console User’s Guide.
Preparing for External Storage Operations
4 Using the External Storage GUI External Storage involves the Volume Operation window, the Path Operation window and the Port Operation window. When you click the tab of the window name, the window is switched to the corresponding window. Volume Operation Window The Volume Operation window enables you to perform the operations, such as mapping external volumes and setting cross-subsystem paths.
• Note: To update all items in the window including the Ext. VOL Status column, make sure the button name isStatus:Enable, then click File and Refresh on the menu bar of the Remote Web Console main window. • Volume Operation List (right of the window) Information on the local storage system and external storage system is displayed corresponding to the items selected in the tree. The list can be sorted by the displayed items.
• Tree The following items are displayed in tree format. The contents displayed in the list (right of the window) switch corresponding to the items clicked in this tree. For details, see Table 5 on page 52. • Subsystem: The root node of the Volume Operation tree which is always displayed. • Product name of the external volume: The product name of the external storage system whose volumes are mapped by External Storage is displayed below Subsystem.
Figure 23 Volume Operation List when Subsystem or a Product Name is Clicked The Volume Operation list consists of: • External Subsystem The following items are displayed: • Vendor: Name of the vendor. • Product Name: Name of the storage system. • Serial Number: Serial number of the storage system. • Ext. VOL Status: Status of the operation executed to the external volume or status of the connection of the mapping path. The displayed items are shown in the following table.
Figure 24 Volume Operation List when Path Group is Clicked The Volume Operation list consists of: • External Volumes The following items are displayed: • ExG: external volume group number and reference number assigned to each volume in the external volume group. This is displayed in the format of external volume group number reference number of volume in the group. The reference numbers of volumes in the group are automatically assigned by External Storage when the external volumes are mapped.
• Multi: For the Multi mode, all of the cross-subsystem paths that you configured are used at the same time. The multiple paths are used to execute the I/Os to the external volume distributing the work load. • Ext. VOL Info: information about the external volume. When the external volume is a SATA drive of the TagmaStore AMS storage system, the TagmaStore WMS storage system, or the Thunder 9500V series storage system, an asterisk (*) is displayed.
Table 8 Pop-up Menu in the External Volumes (Volume Operation Window) Pop-up menu Reference Description Mapping Path Information Section Checking the External Volume Details on page 83. Displays the Mapping Path Information dialog box. This dialog box allows you to see the list of the mapping paths set to the selected external volume. Displays the LDEV Information dialog box. This dialog box allows you to see the emulation type and the capacity of the selected external volume.
Preview dialog box disappear, and the list of the External Storage windows is displayed normally. When you click Cancel on the External Storage windows, all the settings in the Preview dialog box are canceled. When the settings in the Preview dialog box are not applied to the local storage system even if you click Apply on the External Storage windows, an error message is displayed and the erroneous settings are displayed in blue and italics in the External Storage windows.
Figure 26 Path Operation Window The Path Operation window consists of: • Path Operation Tree (left of the window) The left pane of the window is composed of a tree, and a drop-down list which is used to switch the display of the tree. The contents displayed in the list (right of the window) switch corresponding to the items selected in the tree. For details on the tree, see “Path Operation Tree” on page 60.
Table 10 The Items Clicked in the Path Operation Tree and the Contents Displayed Items selected in the drop-down list Fibre - Local Subsystem Fibre - External Subsystem Items displayed in the tree (Clicked items are underlined) Contents displayed in the list Reference Subsystem + Port number List of external ports of the local storage system. Section Path Operation List (When Subsystem is Clicked) on page 61.
• Fibre - Local Subsystem: Displays ports in the local storage system. • Fibre - External Subsystem: Displays ports (WWNs) in the external storage system. • Tree The following items are displayed in tree format. The contents displayed in the list (right of the window) switch corresponding to the items clicked in this tree. For details, see the description of the Path Operation list.
Table 11 Status of the Cross-subsystem Path displayed in the Status Displayed Item Description Normal The cross-subsystem path is normal. - The status of the cross-subsystem path is not retrieved yet. Click Status in the Path Operation window to display the status of the cross-subsystem path. Unknown The status of the cross-subsystem path is unknown. Blockade The cross-subsystem path is blocked.
• Path Watch: The time from when the connection of all the cross-subsystem paths to the external volume have been down to when the external volume is blocked. • Status: Status of the cross-subsystem path. For the displayed statuses, see Table 11 on page 62 • Pop-up menu Right-click a row in the Path Operation list to perform the following operations from the pop-up menu.
Figure 30 Port Operation Window The Port Operation window consists of: • Port Operation Tree (left of the window) The left pane of the window is composed of a tree, and a drop-down list which is used to switch the display of the tree. The contents displayed in the list (right of the window) switch corresponding to the items selected in the tree. For details on the tree, see “Port Operation Tree” on page 65.
Port Operation Tree The Port Operation tree is a tree on the left side of the Port Operation window consisting of a tree and a drop-down list which is used to switch the display of the tree. The Port Operation tree consists of: • Drop-down list A drop-down list to switch the items displayed in the Port Operation tree. You can select Fibre from the drop-down list as a PCB type. • Tree The ports in the local storage system are displayed in the tree.
The total number of ports in the Port Operation list (Total Number of Ports) is displayed. • Pop-up Menu Right-click a row in the Port Information to perform the following operations from the pop-up menu. Table 14 Pop-up Menu in the Port Information Pop-up menu Reference Description Change to External Section Setting Port Attribute for Local Storage System on page 68. Allows you to change the selected port attribute to external.
5 Performing External Storage Operations External Storage enables you to perform the operation to access the external volume, such as setting the port attribute to the external port, and mapping the external volume as an internal volume. This chapter describes the procedure of setting external volume using External Storage. Overview of Setting Operations The following figure illustrates the flow chart of the setting operations, which make external volumes usable from a host, by using External Storage.
4. Map the external volume to the internal volume. You can map external volumes automatically or manually in the Volume Operation window. For the difference between automatic mapping and manual mapping, see “Difference between Automatic Mapping and Manual Mapping” on page 30. 5. Perform the following operation according to the emulation type that you set for mapping.
Note: When you connect a TagmaStore AMS storage system or a TagmaStore WMS storage system, use LUN Manager to set the data transfer speed of the external port which you use to a fixed value other than the Auto. Also, set the data transfer speed of the target port of the TagmaStore AMS storage system or the TagmaStore WMS storage system to the fixed value according to the data transfer speed of the external port.
Caution: Do not specify 01 for the LDKC number when you map a volume of which the emulation type is 3380 series except for 3380-3, 3380-3A, 3380-3B, 3380-3C. Note: Before you map the external volume, you need to check whether the execution of any application (for example, RAID Manager) that is using the command device is in progress. If the execution of any application that is using the command device is in progress, stop the application. To map the external volume manually: 1.
Note: Delete the external volume that you do not want to map in the Add Volume dialog box. To delete the external volume, right-click the external volume and click Delete in the pop-up menu. 10. Click OK to close the Add Volume dialog box. • When the SSID setting is required, the SSID dialog box (section “SSID Dialog Box” on page 76) is displayed. Go to step 11. • When the SSID setting is not required, the Volume Operation window is displayed. Go to step 15. 11.
• Emulation Type: emulation type of the external volume that you configured when you mapped the external volume. • LDEV: LDKC:CU:LDEV number which is assigned to the external volume. • Number of LDEVs: number of LDEVs which are actually created in the external volume. • SLPR/CLPR: SLPR, and CLPR which is used to access the external volume. This is displayed when the cache memory is partitioned using Disk/Cache Partition.
Figure 33 Set External Volume Parameter Dialog Box The Set External Volume Parameter dialog box consists of: • ExG (1-16384) Group number of the connected external volume. You need to specify the number using decimal numbers from 1 to 16384. E displayed outside of the text box is the capital letter of the external volume group. • Emulation Type You can select the emulation type of the mapped external volume from the drop-down list.
LDEV Mapping (Auto) Dialog Box The LDEV Mapping (Auto) dialog box allows you to specify the LDEV number only to the first LDEV in the external volume. If you specify the LDEV number to the first LDEV, the subsequent LDEV numbers are automatically assigned for the rest of LDEVs. Figure 34 LDEV Mapping (Auto) Dialog Box The LDEV Mapping (Auto) dialog box consists of: • SLPR Limited To restrict the CU in the CU drop-down list to the CU which belongs to the SLPR, select the Limited.
the LDEV number. Select a cell for the internal volume on the LDEV map, the selected cell turns to blue, and the LDEV number which the cell indicates is defined to the LDEV. The defined internal volume is grayed out, and undefined internal volumes to be mapped are displayed in white. • OK button Saves the settings and closes the dialog box. • Cancel button Cancels the settings and closes the dialog box. • Pop-up menu This dialog box does not have a pop-up menu that can be displayed.
When you select two or more external volumes in the LDKC:CU:LDEV, the other cells are automatically added to match the number of external volumes that you previously selected in the LDKC:CU:LDEV. When Interval is set, mapping is performed in intervals of that number. • Pop-up menu This dialog box does not have a pop-up menu that can be displayed. Other items are same as the LDEV Mapping (Auto) dialog box. For details, see “LDEV Mapping (Auto) Dialog Box” on page 74.
Figure 37 Set SSID Dialog Box SSID (0004–FFFE): Select the SSID from the SSID drop-down list. You can select the value for an SSID from 0x0004 to 0xFFFE. • If you have selected the SLPR Limited check box on the SSID dialog box, only the SSIDs that can be used in SLPR selected on the SSID dialog box are displayed in the drop-down list. • If you have not selected the SLPR Limited check box on the SSID dialog box, all of the unused SSIDs are displayed in the drop-down list regardless of the selected SLPR.
5. Make the settings to all the LDEVs in the LDKC:CU:LDEV column (repeat step 2 through step 4). 6. Click OK. The specified numbers are assigned to the LDEVs. However, the Add Volume dialog box displays only the LDEV number assigned for the first LDEV of each external volume. Figure 38 Example of LDEV Mapping (Manual) Dialog Box Note: You can also assign contiguous LDEV numbers to LDEVs using this dialog box.
You can change the priority, add and delete the cross-subsystem path in the Configure Cross-subsystem Paths dialog box. The Volume Operation window displays only the external storage system which you have configured the mapping. However, the Configure Cross-subsystem Paths dialog box displays all the external storage system connected to the local storage system even without the mapping configuration. To update the dialog box, click the Port Discovery button in the upper right of the dialog box.
Figure 40 Port Discovery Dialog Box • • • • The Port Discovery dialog box displays the list of the external ports in the local storage system. When you click the external port in the list, WWNs of the external storage system connected to the clicked external port are searched for, and that the Available Paths in the Configure Cross-subsystem Paths dialog box is updated. Selected Paths (Lower part of the dialog box) The cross-subsystem paths that you have added in the Available Paths are displayed.
Configuring Cross-subsystem Path You can configure the cross-subsystem path using the Configure Cross-subsystem Paths dialog box. This section explains the procedure to add a cross-subsystem path to an existing path group. To create a new path group and configure cross-subsystem paths, you need to operate the mapping operation. For the procedure, see “Mapping an External Volume Automatically” on page 69. To add the cross-subsystem path to an existing path group: 1. 2. 3. 4.
Figure 41 Pop-up Menu of Configure Cross-subsystem Paths Dialog Box Changing the Configured Cross-subsystem Path Priority To change the cross-subsystem path priority, use the Raise Priority command and the Lower Priority command displayed in the Configure Cross-subsystem Paths dialog box. The following is an example of procedure to make the cross-subsystem path to the currently used path by raising the priority of the cross-subsystem path: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11.
Canceling the Cross-subsystem Path Configuration You can cancel the configuration of the cross-subsystem path using the Configure Cross-subsystem Paths dialog box. To cancel the cross-subsystem path configuration: 1. 2. 3. 4. Start Remote Web Console, and open the Volume Operation window. Make sure that Remote Web Console is in Modify mode. Click the path group to which the cross-subsystem path belongs in the Volume Operation tree.
LDEV Information Dialog Box The LDEV Information dialog box displays the information on the LDEVs created in the external volumes. Each row displays one LDEV information. Figure 42 LDEV Information Dialog Box The LDEV Information dialog box consists of: • List • LDKC:CU:LDEV: The LDKC:CU:LDEV number of the LDEVs created in the external volume. • Emulation Type: The emulation type of the external volume set when it was mapped. • Capacity: Capacity of the external volume is displayed.
Figure 43 Mapping Path Information Dialog Box The Mapping Path Information dialog box consists of: • List • Priority: Priority of the mapping path. 1 indicates the mapping path with the highest priority. • Port: The port number in the local storage system connecting to the external storage system. • WWN: Identification number of the port in the external storage system. • LUN: LU number set to the external volume. • Status: Status of the mapping path. One of the following statuses is displayed.
Table 17 Status of the Mapping Paths in the Mapping Path Information Dialog Box 86 Displayed Item Description Normal The mapping path is normal. - The status of the mapping path is not retrieved yet. Click Status in the Volume Operation window to display the status of the mapping path. Unknown The status of the mapping path is unknown. Blockade The mapping path is blocked. External device setting changed The setting of the external storage system has been changed.
• Close button Close the Mapping Path Information dialog box. • Pop-up menu The Mapping Path Information dialog box does not have a pop-up menu that can be displayed. Turning On or Off the Storage System This section describes the procedure to turn on or off the local storage system and the external storage system after the External Storage operation has been started.
For the procedure to execute the Check Paths & Restore Volume command, see “Checking Connection Status and Resuming External Volume Operation” on page 91. Note: When the Check Paths & Restore Volume command is executed and the external volume is ready to be restored as the mapped volume, the external volume is set to accept the I/Os and you can resume using the external volume as a mapped volume. However, if the external volume is not ready to be restored, the external volume status remains blocked.
the local storage system on. It is necessary to execute the Check Paths & Restore Volume command to resume using the mapped external volume. The Check Paths & Restore Volume command checks if the defined information and the actual status of the external volume mapped as an internal volume match. If the external volume is ready to be used as a mapped volume, the volume is set to accept the I/Os and you can resume using the volume as a mapped volume.
Caution: The cautions on the Disconnect Subsystem command and the Disconnect Volume command are as follows: • After you have executed the Disconnect Subsystem command or the Disconnect Volume command, click the Refresh command ( ) on the Remote Web Console main window to update the information, and check the current progress status.
A pop-up menu is displayed. 5. Click Disconnect Volume in the pop-up menu. The settings are displayed in blue and italics. 6. Verify the settings in the Preview dialog box (see “Preview Dialog Box” on page 57). 7. Click Apply in the Volume Operation window. The settings are applied to the local storage system and the Volume Operation window is displayed normally. When an error occurs, an error message is displayed. Verify the details in the Preview dialog box.
resumed, the Ext. VOL Status changes to Normal. If the external storage system can not be resumed, the Ext. VOL Status changes to Blockade. Resuming an Individual External Volume (Check Paths & Restore Volume) To resume an individual external volume: 1. 2. 3. 4. Start Remote Web Console, and open the Volume Operation window. Make sure that Remote Web Console is in Modify mode. Click the path group in the Volume Operation tree.
Restoring the Paths to the External Volume (Check Paths) You use the Check Paths command to resume using the cross-subsystem path which was stopped by the Disconnect Paths command. Note: The path has to be in a status that can be restored. To restore the path to the external volume: 1. Start Remote Web Console, and open the Path Operation window. 2. Make sure that Remote Web Console is in Modify mode. 3. Select one of the following from the drop-down list above the Path Operation tree.
6. Verify the settings in the Preview dialog box (see “Preview Dialog Box” on page 57). 7. Click Apply in the Volume Operation window. The settings are applied to the local storage system and the Volume Operation window is displayed normally. When an error occurs, an error message is displayed. Verify the details in the Preview dialog box. Changing the Inflow Control Setting of the External Volume You can change the inflow control setting of the external volume in the Volume Operation window.
The settings are applied to the local storage system and the Path Operation window is displayed normally. When an error occurs, an error message is displayed. Verify the details in the Preview dialog box. Change WWN Parameter Dialog Box Figure 44 Change WWN Parameter Dialog Box The Change WWN Parameter dialog box consists of: • QDepth (2-128): The number of Read/Write commands which can be issued (queued) to the external volume at a time. The value that can be set are from 2 to 128.
Figure 45 Edit Policy Dialog Box The Edit Policy dialog box consists of: • Pattern: Mapping policies. Default Policy is prepared. • Policy: The content of the selected mapping policy is displayed. • Emulation Type: The emulation type of the external volume set when it was mapped. To select an emulation type other than OPEN-V, select the Except OPEN-V check box and select the emulation type from the drop-down list.
• • • • • All the data in the cache memory must be written into the mapped external volume using the Disconnect Subsystem command or the Disconnect Volume command. For detailed information on the Disconnect Subsystem command and the Disconnect Volume command, see “Disconnecting External Storage System or Disconnecting External Volume” on page 89. Whether the volume is set as a volume which configures a LUSE volume.
Performing External Storage Operations
6 Remote Command Devices This chapter describes remote command device. Overview of Remote Command Devices A remote command device is a device in the local storage system to which a command device in the external storage system is mapped. As you send the RAID Manager commands to the remote command device, you can enter these RAID Manager commands to the command device of the external storage system to operate the RAID Manager in the external storage system. Figure 46 on page 100 shows an example.
Figure 46 Outline of Remote Command Device Guidelines for Remote Command Devices Notices on remote command device are as follows: • You can map a command device as a remote command device when one of the following storage systems is connected as an external subsystem.
• HP StorageWorks XP24000 Disk Array • HP StorageWorks XP12000 Disk Array • HP StorageWorks XP10000 Disk Array • HP StorageWorks XP1024/XP128 Disk Array • You do not need the license for External Storage to map a command device as a remote command device.
Table 19 Restrictions on Remote Command Device Item Restriction Emulation type OPEN-V Number of LDEVs in an external volume 1 Cache mode Disable Minimum capacity 96,000 Blocks (about 47 MB) Maximum capacity 2 TB • The remote command device cannot be identified by the Port Discovery or Volume Discovery of External Storage. • You cannot execute I/Os to the remote command device. • You cannot set the command device disable on the remote command device.
CL1-A Initiator Standard CL3-A External Standard CL5-A Initiator Standard CL7-A External Standard Port Block (All ports are in the Standard mode.) CL1-A Initiator MIX CL3-A [1-A 2nd] External MIX CL5-A Initiator MIX CL7-A [5-A 2nd] External MIX Port Block (All ports are in the Initiator/External MIX mode.
Figure 48 Example of Using Continuous Access or Continuous Access Journal with Remote Command Device Procedure to Use Initiator/External MIX Mode This section describes the procedure to use the Initiator/External MIX mode and the procedure to stop using the Initiator/External MIX mode. The procedure to use the Initiator/External MIX mode is as follows: 1. Prepare the initiator ports of the Standard mode and external ports of the Standard mode in one port block.
5. Start the operation of Continuous Access or Continuous Access Journal and operation of the remote command device using the port of the Initiator/External MIX mode. The procedure to stop using the Initiator/External MIX mode is as follows: 1. 2. 3. 4. Stop the copy processing and operation of Continuous Access and Continuous Access Journal. Stop accessing the remote command device. Delete the mapping of the remote command device.
Remote Command Devices
7 Troubleshooting If you have a problem with the Remote Web Console computer or Remote Web Console software, see the HP StorageWorks XP24000 Remote Web Console User’s Guide for troubleshooting information. Troubleshooting for External Storage The following table provides general troubleshooting instructions for the External Storage operations. If you need to call the HP Support Center, see “Calling HP Technical Support” on page 111 for instructions.
Error Corrective Action The displayed statuses are as follows: - Unknown Status: The status of the path is unknown. Reaction: The status of the path cannot be identified. Please call HP technical support. - Blockade Status: The external port is blocked. Reaction: The external port is blocked because of the microcode replacement or package replacement or some other factor. Check the status of the local storage system. If you cannot restore the path, call HP technical support.
Error Corrective Action - Response error Status: The external storage system is in the blocked status caused by the abnormal reply (Response). You may not be able to access the device of the external storage system. Or data protection may be set on the device of the external storage system. Reaction: The port of the external storage system is recognized. Check the setting and status of the external storage system. If you cannot restore the path, call HP technical support.
Error Corrective Action - Unavailable Status: The reply of the external storage system was Unavailable. The external storage system demands to change the connected port. Once the status becomes Unavailable, the primary path is changed to the alternate path that is in the Standby status. When the primary path has been changed, the status of the path becomes Normal. Reaction: If the path is not changed over properly, check the status of the external storage system.
Error Corrective Action The Disconnect Subsystem command or the Disconnect Volume command is executed, but the progress status information is not updated. ) command on the Remote Web Console main window while the Click Refresh ( Status button is depressed. If the progress information about the Cache Destage status is not updated even though you have updated the information, call HP technical support.
Troubleshooting
A Connecting External Storage Systems TagmaStore AMS Storage System, TagmaStore WMS Storage System System Parameters for Connecting TagmaStore AMS Storage System, TagmaStore WMS Storage System The table below explains whether to specify system parameters when making settings on ports on the TagmaStore AMS storage system and TagmaStore WMS storage system.
Table 21 System Parameter Settings (TagmaStore AMS Storage System and TagmaStore WMS Storage System) Parameters Window Names Boot Options Parameter Settings Start Attribute • Single Mode Specify this parameter when TagmaStore AMS storage system or TagmaStore WMS storage system is in the one controller configuration. • Dual Active Mode Specify this parameter when TagmaStore AMS storage system or TagmaStore WMS storage system is in the two controller configuration.
Table 22 Relationship between Serial Number and Storage System Model of TagmaStore AMS Storage System, TagmaStore WMS Storage System Storage System AMS WMS Displayed Serial Number Model 77XXXXXX AMS 1000 75XXXXXX AMS 500 73XXXXXX AMS 200 71XXXXXX WMS 100 Note: In serial numbers, X is an arbitrary number or character.
Table 24 Path Status and Examples of Recovery Procedure (For TagmaStore AMS Storage System, TagmaStore WMS Storage System) Path Status Examples of Recovery Procedure External device setting changed Settings of the LU paths may have been changed by LUN Manager. Check the settings of the LU paths. If the settings of the LU paths have been changed, change the settings back to the ones when the volume is mapped.
Table 25 System Parameter Settings (Thunder 9500V Storage System) Parameters Window Names System Startup Settings Parameter Settings Start Attribute • Single Mode Specify this parameter when Thunder 9500V storage system is in the one controller configuration. • Dual Active Mode Specify this parameter when Thunder 9500V storage system is in the two controller configuration. Note: Be sure to specify that Data Share Mode will be used. • Hot Stand-By Mode Do not specify this parameter.
Note: When you use the Thunder 9500V storage system as an external storage system, the following versions are recommended. If you use a 9500V storage system whose version is earlier than the following versions, the information about the SATA drive may not be displayed correctly. For Thunder 9530V, Thunder 9520V, Thunder 9570V: version 0658 or later. For Thunder 9580V, Thunder 9585V: version 1658 or later.
Path Status and Examples of Recovery Procedure (For Thunder 9500V Storage System) This section describes errors which requires recovery operation on the external storage system side when the path status is not normal. When the path status is not normal, see the following table to recover the path status. For the other errors which are not described in this section, see “Troubleshooting for External Storage” on page 107. If you cannot restore the path, call HP technical support.
“Troubleshooting for External Storage” on page 107. If you cannot restore the path, call HP technical support. Table 29 Path Status and Examples of Recovery Procedure (For USP V Storage System) Path Status Examples of Recovery Procedure External device setting changed Settings of the LU paths may have been changed by LUN Manager. Check the settings of the LU paths. If the settings of the LU paths have been changed, change the settings back to the ones when the volume is mapped.
Table 30 Path Status and Examples of Recovery Procedure (For TagmaStore USP Storage System, TagmaStore NSC Storage System) Path Status Examples of Recovery Procedure External device setting changed Settings of the LU paths may have been changed by LUN Manager. Check the settings of the LU paths. If the settings of the LU paths have been changed, change the settings back to the ones when the volume is mapped.
Table 31 Path Status and Examples of Recovery Procedure (For Lightning 9900V Storage System) Path Status Examples of Recovery Procedure External device setting changed Settings of the LU paths may have been changed by LUN Manager. Check the settings of the LU paths. If the settings of the LU paths have been changed, change the settings back to the ones when the volume is mapped. Or use External Storage to perform the Delete LU operation and perform the Add LU operation again.
Table 32 Path Status and Examples of Recovery Procedure (For Lightning 9900 Storage System) Path Status Examples of Recovery Procedure External device setting changed Settings of the LU paths may have been changed by LUN Manager. Check the settings of the LU paths. If the settings of the LU paths have been changed, change the settings back to the ones when the volume is mapped. Or use External Storage to perform the Delete LU operation and perform the Add LU operation again.
Table 33 Path Status and Examples of Recovery Procedure (For SVS200 Storage System) Path Status Examples of Recovery Procedure External device setting changed Settings of the LU paths may have been changed by LUN Manager. Check the settings of the LU paths. If the settings of the LU paths have been changed, change the settings back to the ones when the volume is mapped. Or use External Storage to perform the Delete LU operation and perform the Add LU operation again.
If you search for the logical volumes specifying the WWN indicating the EVA Port A in the configuration such as Figure 49 on page 125, the logical volumes named LUN 1 and LUN 2 are found for each of HostGroup-1 and HostGroup-2. In this case, two different logical volumes that have the same name such as LUN 1 and LUN 2 are found as the logical volumes that can be connected from EVA Port A, but you cannot tell which LUN 1 and LUN 2 belong to HostGroup-1 or HostGroup-2 only by Characteristic 1.
Table 35 System Parameter Settings for Connecting Sun StorEdge 6120/6320 Parameter Parameter Setting port host SUN System Parameter Settings for Connecting StorageTek FlexLine 380 When you connect a StorageTek FlexLine 380 as an external storage system, set the system parameters of the StorageTek FlexLine 380 according to the following table.
B Required Volume Capacity for Each Emulation Type When you map an external volume as a storage system internal volume, you need to specify the emulation type for the mapped volume. The maximum capacity of an external volume depends on the specified emulation type. How to Figure Out Required External Volume Capacity The capacity required for the LDEV to be mapped is the total capacity of the data area for storing the actual user data and the control information area for storing the control information.
Figure 51 on page 129 shows how to figure out the volume capacity using the example of the OPEN-3 case.
Figure 51 Example of How to Figure Out the Volume Capacity (In the Case of OPEN-3) Capacity List for Each Emulation Type This section explains the LDEV capacity and volume capacity for each emulation type in the units of blocks and cylinders. In this section, the numbers of cylinders are calculated from the following formulas.
Table 39 LDEV Capacity Information for Each Emulation Type Emulation Type Minimum Data Area Capacity (Blocks) (Cylinders) Base Data Area Capacity (Blocks) (Cylinders) Control Information Area Capacity (Blocks) (Cylinders) 3380-3 72,000 50 4,808,160 3,339 10,080 7 3380-3A 72,000 50 4,808,160 3,339 10,080 7 3380-3B 72,000 50 4,808,160 3,339 10,080 7 3380-3C 72,000 50 4,808,160 3,339 10,080 7 3380-K 72,000 50 3,823,200 2,655 10,080 7 3380-KA 72,000 50 3,823,200 2,6
Table 40 Volume Capacity Information on Each Emulation Type Emula tion Type Base LDEV Capacity (Blocks) (Cylinders) Minimum LDEV Capacity (Blocks) Maximum Capacity of External Volume (Cylinders) (Blocks) (Cylinders) Maximum Number of LDEVs* 3380-3 4,818,240 3,346 82,080 57 1,610,612,640 1,118,481 334 3380-3A 4,818,240 3,346 82,080 57 1,610,612,640 1,118,481 334 3380-3B 4,818,240 3,346 82,080 57 1,610,612,640 1,118,481 334 3380-3C 4,818,240 3,346 82,080 57 1,610,612,640
Required Volume Capacity for Each Emulation Type
C Adjusting Volume Capacities for Pairs When you create a pair, the capacity of S-VOL must be the same as that of P-VOL. To set a desired volume to a pair, you may need to adjust the capacity of volume. This section describes the procedure to adjust the volume capacity. • When copying data from an external storage system (when you want to use an external volume as P-VOL) For A, B, and C in the following description, see Figure 52 on page 133.
To adjust the capacity of the external volume to create a pair: 1. Map the external volume (A) as an internal volume (B) of the local storage system. Set the emulation type as same as that of the copy source volume (C). 2. Check the capacity of the internal volume (B) where the external volume (A) is mapped.
D Acronyms and Abbreviations Table 41 Acronyms and Abbreviations CHA channel adapter CV custom-sized volume ESCON enterprise system connection FICON fibre connection IBM International Business Machines LDEV Logical DEVice LDKC logical disk controller LU logical unit LUN logical unit number MCU main control unit MIH missing interrupt handler OEM original equipment manufacturer PC personal computer PCB printed circuit board P-VOL primary volume SIM service information message SS
Acronyms and Abbreviations
Index A Attributes list of emulation type, 22 audience, 11 B Block management, ExG, 21 C Cache logical partition, 22 memory, 22 Channels escon or ficon, 29 Concept, 18 conventions document, 11 storage capacity values, 11 customer support, 111 D Destaging data, 22 document conventions, 11 related documentation, 11 documentation HP website, 11 providing feedback, 12 E Emulation, OPEN-V, 30 External Port, 21 External Storage Requirements, 43 external storage system, 17 External volume group, 21 migrate
V Volume Operation Window, 51 138 W websites HP, 12 HP Subscriber’s Choice for Business, 12 product manuals, 11
