HP StorageWorks LUN Configuration Manager XP user’s guide XP48 XP256 XP512 fourth edition (November 2003) part number: B9335-96002 This guide explains how to use the HP StorageWorks LUN Configuration Manager XP software.
© 2003, Hewlett-Packard Development Company, L.P. Hewlett-Packard Company makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Hewlett-Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material. This document contains proprietary information, which is protected by copyright.
Contents About this guide 5 Intended audience 5 Disk arrays 5 Related documentation 5 Conventions 6 Getting help 6 HP technical support 7 HP storage website 7 HP authorized reseller 8 Revision history 9 Warranty statement 10 1 Introduction 13 Installation requirements 14 Important terms and concepts 15 2 Installation 17 Installing LUN Manager on the XP256 Installing LUN Manager on the XP512 3 Contents 18 20 Operation 23 Starting LUN management operations 24 Adding and deleting SCSI/Fibre Channel pat
Configuring Fibre Channel ports 47 Setting the Fibre Channel port address 47 Setting Fibre Channel topology 55 LU size expansion 59 Creating expanded LUNs 61 Expanding dispersed LUNs 67 Releasing an expanded LUN 74 Changing the size of an expanded LUN 78 4 VSC operations 79 VSC parameters 81 VSC specifications 81 Custom volume capacity 82 Storage subsystem ID (SSID) requirements 82 XP256 VSC operations 83 Starting VSC operations 84 Viewing VSC configuration information 85 Converting a normal volume to a VS
About this guide This guide explains how to use the HP StorageWorks LUN Configuration Manager XP option.
Conventions This guide uses the following text conventions. Figure 1 Blue text represents a cross-reference. For the online version of this guide, the reference is linked to the target. www.hp.com Underlined, blue text represents a website on the Internet. For the online version of this guide, the reference is linked to the target.
HP technical support In North America, call technical support at 1-800-652-6672, available 24 hours a day, 7 days a week. Outside North America, call technical support at the nearest location. Telephone numbers for worldwide technical support are listed on the HP website under support: thenew.hp.com/country/us/eng/support.
HP authorized reseller For the name of your nearest HP authorized reseller, you can obtain information by telephone: United States 1-800-345-1518 Canada 1-800-263-5868 elsewhere See the HP website for locations and telephone numbers: www.hp.
Revision history About this guide May 5, 1999 Published original edition for XP256. June 1, 2000 Added support for XP512. Reformatted as a separate manual. November, 2003 General update.
Warranty statement HP warrants that for a period of ninety calendar days from the date of purchase, as evidenced by a copy of the invoice, the media on which the Software is furnished (if any) will be free of defects in materials and workmanship under normal use. DISCLAIMER. EXCEPT FOR THE FOREGOING AND TO THE EXTENT ALLOWED BY LOCAL LAW, THIS SOFTWARE IS PROVIDED TO YOU “AS IS” WITHOUT WARRANTIES OF ANY KIND, WHETHER ORAL OR WRITTEN, EXPRESS OR IMPLIED.
LIMITATION OF LIABILITY.
HP StorageWorks LUN Configuration Manager XP: user’s guide
1 Introduction LUN Configuration Manager XP enables you to define the SCSI-to-logical device (LDEV) paths for the disk array using the remote console PC. Each LDEV can be mapped for access from multiple ports or multiple target IDs to provide alternate paths for continuous data availability. LUN Configuration Manager XP allows you to reconfigure the SCSI/Fibre Channel paths at any time to optimize disk array performance and accommodate system configuration changes, such as adding a host.
Installation requirements See your HP account representative for specific requirements.
Important terms and concepts You should be familiar with the following terms and concepts: • controller The disk array has one controller which controls data access and storage operations. The disk array controller supports OPEN-x emulation modes. • CU (control unit) Each CU controls up to 256 LDEVs (XP256) or 512 LDEVs (XP512). The CUs are numbered sequentially from 0 to E. • LDEV (logical device) An LDEV results when a RAID group is divided into parts according to the emulation mode selection (OPEN-x).
HP StorageWorks LUN Configuration Manager XP: user’s guide
2 Installation LUN Configuration Manager XP is an option and requires a license key. You must have either the LUNM and LUSE key floppy disks (XP256) or text string keys for LUMN and LUSE (XP512). To perform the installation, HP StorageWorks Remote Control XP (RC) software must be installed, and you must have RC administrator privileges. LUN Configuration Manager XP must be installed before you can install the LUSE (LUN Size Expansion) or LUN Security options.
Installing LUN Manager on the XP256 LUN Manager is an option and the license keys must be purchased. Before you begin, be sure you have the key disk for LUN Configuration Manager and LU Size Expansion. To install the LUN Manager on an XP256: 1. Log in as an administrator. 2. On the Remote Console Main window, select Option to open the Option Product window. This window shows the current installation status of the RC options. 3.
8. Insert the LUSE key disk in the floppy drive. 9. Select OK. When this option installation is complete, the Option Product window opens and the displayed status of the selected option changes from Not install to Install. 10. Select Close to return to the Remote Console Main window.
Installing LUN Manager on the XP512 LUN Manager is an option and the license keys must be purchased. Before you begin, be sure you have the license keys for LUN Configuration Manager and LU Size Expansion. To install the LUN Manager on an XP512: 1. Log in as an administrator. 2. On the Remote Console Main window, select Option to open the Option Product window. This window shows the current installation status of the RC options. 3.
5. Enter the license key (password) in the Key Code text box for LUN Configuration Manager. 6. Select OK If the password is approved, the Program Product window opens. This window shows the product name—LUNM, model name (for example, P-242R-E4241), key kind (for example, Permanent), and effective term (for example, Free). 7. After confirming the content of the Program Product window, select OK.
HP StorageWorks LUN Configuration Manager XP: user’s guide
3 Operation LUN management operations can be performed by users with administrator or custom access privileges. Users without these privileges can only view the SCSI path information for attached disk arrays.
Starting LUN management operations To start LUN management operations: 1. Start and log in to the HP StorageWorks Remote Control XP (RC) program. 2. Select the Connect button. 3. Select a disk array to be managed in the Connect window. 4. Select the Connect button to connect the disk array. 5. Select LUN Management to start LUN management operations. After the disk array is connected, the RMSCSI window opens. 6. Select a mode from the Path pull-down menu.
7. The LUN Management-LDEV Configuration window opens. Define(Offline) The disk array is not servicing I/Os-to-LUNs on ports that are being modified. You can add or delete paths and modify port configurations. Define(Online) The disk array continues to service all I/Os. You can only add new paths. Reference The array continues to service all I/Os. No changes are allowed. You can only view path and port information. This window provides access to all LUN management operations.
The LUN Management-LDEV Configuration window displays SCSI path information for the connected disk array and provides access to SCSI path functions. This window opens at the beginning of LUN management operations, and also at the end of LUN management operations so you can view and confirm changes.
Adding and deleting SCSI/Fibre Channel paths LUN management operations on the remote console PC enable you to add and delete paths to LDEVs in the array. Each LDEV can have multiple paths defined to support failover or load-balancing configurations. Caution Before assigning a SCSI path to a LDEV, make sure that the LDEV is not an Auto LUN XP Reserved Device. If the volume has been reserved, it will be write-protected and any writes to that volume will fail.
2. Review the information displayed on the LUN Management-LDEV Configuration window to see which paths have already been assigned. A single plus sign (+) next to an LDEV ID (listed under the Volume attribute) indicates that there is an assigned SCSI/fibre path to that LDEV. Two plus signs (++) next to an LDEV ID indicates that there is more than one SCSI path to that LDEV. The label for CMD.
4. Paths can be defined individually (individual mode) or in a group (bulk mode). (Individual Mode) Select PORT, SCSI ID, and LUN one by one for each LDEV ID. (Bulk Mode) Select the desired CU number; then select the SCSI ports, TIDs, and LUN IDs you want to assign; and then select the corresponding LDEV IDs. Select the first LDEV ID and LUN Manager assigns the remaining paths sequentially, or select the specific LDEV IDs you want to assign.
5. When you have completed setting the paths, select Set. The Add SCSI Path window opens and displays the SCSI paths to be added.
6. Verify that the information presented on the Add SCSI Path window is correct. If the information is not correct, select Cancel to return to the Set Path window. If the information is correct, select OK to save the new path information and return to the LUN Management-LDEV Configuration window. 7. To configure the new paths in the array, select OK on the LUN Management-LDEV Configuration window. To cancel your request to add new paths, select Cancel.
The LUN Management-LDEV Configuration window displays. 2. Review the information displayed on the LUN Management-LDEV Configuration window and select the SCSI paths you want to delete in the LUN Management box.
Use the Ctrl key to select more than one path. 3. Select Delete to open the Delete LUN Management window.
The Delete LUN Management window displays the selected SCSI paths to be deleted. 4. Verify that the information presented on the Delete LUN Management-LDEV Configuration window is correct. 5. If the information is correct, select OK. If the information is not correct, select Cancel. The LUN Management-LDEV Configuration window opens.
6. To delete the selected paths, select OK on the LUN Management-LDEV Configuration window. To cancel your request to delete the selected paths, select Cancel.
Setting the host mode LUN Configuration Manager XP allows you to set the host mode for each SCSI port on the disk array. The following table describes each host mode.
To set the host mode: Caution Before changing the host mode, back up the data on the port of the host mode you want to change. The set host mode operation is not destructive; however, data integrity cannot be guaranteed without a backup. 1. Select Define (Offline) from the RMSCSI Path menu to go to offline mode. 2. Select Host Mode on the LUN Management-LDEV Configuration window to open the Host Mode Information window. The Host Mode Information window displays the current host mode setting for each port.
3. Select Set to open the Set Host Mode window. 4. Select the mode in the Mode box, then select the desired ports in the Port box. 5. Select Confirm. The Mode Confirmation window now opens.
6. Make sure the mode and ports are displayed correctly in the Mode Confirmation window. If not, select Cancel and repeat this procedure. If so, select OK. The Host Mode Information window now displays the new host mode settings.
7. If the new settings in the Set Port Mode window are not correct, select Cancel and repeat steps 2 through 4. If the new settings are correct, select OK. The LUN Management-LDEV Configuration window now displays the new host mode settings. 8. To implement the new host mode settings, select OK. To cancel the new host mode settings, select Cancel.
Setting/resetting a command device A volume that is configured as a command device allows applications such as RAID Manager to communicate with a disk array. To set a command device: 1. Select Define (Offline) from the RMSCSI Path menu to go to offline mode.
2. From the LUN Management-LDEV Configuration window, select the SCSI paths in the SCSI path list.
3. Select the Cmd.Dev. button. The label “[for Cmd.]” displays in the SCSI path list next to the path.
To reset a command device: 1. Select Define (Offline) from the RMSCSI Path menu to go to offline mode.
2. From the LUN Management-LDEV Configuration window, select the SCSI paths with the “[for Cmd.]” label in the SCSI path list.
3. Select the Cmd.Dev. button. The label “[for Cmd.]” is deleted in the SCSI path list.
Configuring Fibre Channel ports Fibre Channel configuration includes setting the port address and topology. Setting the Fibre Channel port address To set the Fibre Channel port address: 1. Select Define (Offline) from the RMSCSI Path menu to go to offline mode.
The SCSI Path-LDEV Configuration menu displays. 2. On the SCSI Path-LDEV Configuration menu, select the Fibre button. The Fibre Information window displays.
3. Select the Port Address button in the Fibre Information window. The Fibre-Port Address Information window opens to displays port names, arbitrated loop physical addresses, and Loop IDs. If a port has not defined an address yet, its address value will be EF. 4. Select the ports to be changed. 5. Select the Set button.
The Set Fibre Port Address window displays. 6. Select AL-PA or Loop ID and input the address from the following table. If you select AL_PA, input a value in hexadecimal (01 through EF). If you input only a one-digit number, the function will convert it to a two-digit number. For example, if you input A, it is converted to 0A. If you select Loop ID, input a decimal number (0 to 125). The AL_PA, which is assigned to the Loop ID, is displayed.
AL PA Loop ID AL PA Loop ID AL PA Loop ID AL PA Loop ID EF 0 B2 32 72 64 3A 96 E8 1 B1 33 71 65 39 97 E4 2 AE 34 6E 66 36 98 E2 3 AD 35 6D 67 35 99 E1 4 AC 36 6C 68 34 100 E0 5 AB 37 6B 69 33 101 DC 6 AA 38 6A 70 32 102 DA 7 A9 39 69 71 31 103 D9 8 A7 40 67 72 2E 104 D6 9 A6 41 66 73 2D 105 D5 10 A5 42 65 74 2C 106 D4 11 A3 43 63 75 2B 107 D3 12 9F 44 5C 76 2A 108 D2 13 9E 45 5A 77 29 109
AL PA Loop ID AL PA Loop ID AL PA Loop ID AL PA Loop ID C5 23 81 55 4C 87 17 119 C3 24 80 56 4B 88 10 120 BC 25 7C 57 4A 89 0F 121 BA 26 7A 58 49 90 08 122 B9 27 79 59 47 91 04 123 B6 28 76 60 46 92 02 124 B5 29 75 61 45 93 01 125 B4 30 74 62 43 94 B3 31 73 63 3C 95 7. Select the OK button. The Fibre Information window displays the results of the address change. 8.
The Fibre Information window displays. 9. Select the Close button on the Fibre Information window.
The LUN Management-LDEV Configuration window displays. 10. To implement the change, select the OK button on the LUN Management-LDEV Configuration window. To cancel the change, select Cancel.
Setting Fibre Channel topology To set Fibre Channel topology: 1. Select Define (Offline) from the RMSCSI Path menu to go to offline mode. The LUN Management-LDEV Configuration menu displays. 2. On the LUN Management-LDEV Configuration menu, select the Fibre button. The Fibre Information window displays.
3. Select the Topology button. The Fibre-Topology Information window displays. If a port topology is not set, the fabric setting is OFF and the connection type is FC-AL. 4. Select a port to change its topology. You can select several ports by pressing Ctrl or Shift keys while selecting the ports. 5. Select the Set button. The Set Fibre Topology window displays.
6. Set the topology by selecting an item in both the Fabric (ON or OFF) and Connection (FC-AL or Point to Point) boxes. 7. Select the OK button. The information in the remote console changes and the Fibre -Topology Information window displays with the new information. 8. Select OK.
The LUN Management-LDEV Configuration window displays. 9. To implement the change, select the OK button. To cancel the change, select the Cancel button.
LU size expansion The LU Size Expansion (LUSE) feature allows you to create volumes that are larger than standard OPEN-x LDEVs. This capability enables hosts to access the data in the array using fewer logical units. The following tables list the OPEN-x sizes, LUSE size limitations, and (for comparison) VSC size limitations. VSC volumes may also be used with LUSE. Parameter OPEN-3 OPEN-8 OPEN-9 OPEN-E OPEN-K OPEN-L OPEN-M 2.4 GB 7.3 GB 7.3 GB 14.5 GB 1.8 GB 36.4 GB 47.
Note the following limitations: • You cannot combine LDEVs from different control units. • Windows NT hosts cannot access more than 32 logical units. • Some operating systems may experience slow disk access times with large logical units. The following are guidelines for LU Size Expansion: • A maximum of 256 expanded LUNs can be configured on the same port. • The LDEVs that will become members of the LUSE must not have SCSI paths assigned. These are known as free (or available) LDEVs.
Creating expanded LUNs When creating expanded volumes, LDEVs with assigned paths cannot be used. All assigned SCSI paths must be deleted before a selected LDEV can be used for expansion. To configure an expanded LUN: 1. Select either online or offline mode from the RMSCSI Path menu.
2. Select OpenVol on the LUN Management-LDEV Configuration window to open the LU Expansion Define window. The CU drop-down list allows you to choose the control unit for the LDEVs you want to expand. The list box displays the control unit, LDEV, open volume type (OPEN-x), and path status. If an asterisk (*) appears under the path listing, this indicates that the path has already been set. If there is no asterisk (*), the path has not been set.
3. Select the CU that controls the LDEV to be expanded from the CU drop-down list. In the list box, select the LUN you want to expand. 4. Select Expand to open the LU Expansion window.
The following information is displayed: OPEN-x*1 Displays the emulation type. All available LDEVs are displayed as OPEN-X*1 indicating that only one LDEV is present. Volumes that have already been expanded are displayed as OPEN-X*n, where n is the number of LDEVs combined. For example if the volume is displayed as OPEN-3*16, there are 16 LDEVs in that OPEN-3 expanded volume. LDEVs with an asterisk (*) in either the Path or CVS columns are not available for size expansion.
The LU Expansion Define window now opens again displaying the newly expanded volume. 7. To expand another volume repeat steps 3 through 6. 8. To return to the LUN Management-LDEV Configuration window, select OK.
The LUN Management-LDEV Configuration window now displays the new expanded volumes. 9. Assign a SCSI path to the expanded volume. For the procedure to assign SCSI paths, see “Adding SCSI/Fibre Channel paths” (page 27). The LUN Management-LDEV Configuration window displays the new expanded volumes. 10. To implement the expanded LUNs, select OK. To cancel the expanded LUNs, select Cancel.
Expanding dispersed LUNs Caution LU size expansion is a destructive operation. Back up all data. To configure an expanded dispersed LUN: 1. Select either online or offline mode from the RMSCSI Path menu. The LUN Management-LDEV Configuration window opens. 2. Select the OpenVOL button. The LUN Expansion Define window displays.
3. In the CU:LDEV list box, select the LDEV you want to expand. 4. Select the Exp (Disperse) button.
The LU Expansion (Disperse) window displays. All available LDEVs are displayed as OPEN-X*1 indicating that only one LDEV is present. Existing LUSE volumes are displayed as OPEN-X*n (n indicates the number of LDEVs in the LUSE volume). LUNs with an asterisk (*) in the Path column are not available for size expansion. Only LDEVs with no SCSI paths assigned can be candidates for LUSE. If these LDEVs must be used, their SCSI paths must be deleted first.
5. Select the LDEVs to be used from the list. To select a series of LDEVs, press the Shift or Ctrl key during selection. 6. Select the OK button. The LU Expansion Define window displays.
7. Select the expanded LDEV in the volume list. 8. Select the Detail button. The Open Vol Detail window displays.
9. Verify the settings are correct and then select the Close button. The LU Expansion Define window displays. 10. Select OK. The LUN Management-LDEV Configuration window displays. The newly configured volume is displayed as OPEN-X*n, where n is the number of LDEVs contained in the volume. 11. Assign a SCSI path to the expanded volume. For the procedure to assign SCSI paths, see “Adding SCSI/Fibre Channel paths” (page 27). The LUN Management-LDEV Configuration window displays the new expanded volumes.
12. Select OK to implement the change. Select Cancel to cancel the change.
Releasing an expanded LUN Caution Releasing an expanded LUN is a destructive operation. Back up all data. To release an expanded LUN: 1. Select Define (Offline) from the RMSCSI Path menu to go to offline mode.
The LUN Management-LDEV Configuration menu displays. 2. Delete the expanded LUN from its SCSI path before releasing it. See “Deleting SCSI/Fibre Channel paths” (page 31). 3. Select OpenVol on the LUN Management-LDEV Configuration window to open the LU Expansion Define window. 4. Select the control unit that controls the desired LUN from the CU drop-down list. In the list box, select the volume you want to release. 5. Select the Free button.
The LU Expansion Define window now displays the newly released LDEVs. 6. To release another volume, repeat steps 2 though 5. 7. To return to the LUN Management-LDEV Configuration window, select OK.
The LUN Management-LDEV Configuration window now displays the newly released LDEVs. 8. To implement the released volumes, select OK. To cancel the released LDEVs, select Cancel.
Changing the size of an expanded LUN If you have an expanded LUN that you want to make larger or smaller, you must first delete all SCSI paths to that LUSE volume, release the expanded LUN, and then create a new expanded LUN. Then you will need to recreate SCSI paths to the new expanded LUN.
4 VSC operations Volume Size Configuration (VSC) allows you to configure custom size volumes that are smaller than normal volumes. VSC improves data access performance by reducing logical device contention as well as host I/O queue times, which can occur when several frequently accessed files are located on the same volume. VSC enables better utilization of the physical storage capacity of the disk array while reducing the amount of administrative effort required to balance storage device I/O work loads.
This chapter covers VSC parameters and procedures.
VSC parameters This section covers • VSC specifications • custom volume capacity • storage subsystem ID (SSID) requirements VSC specifications The following table lists VSC specifications. Each CV has its own assigned unit control block (UCB), and multiple VSC types can be configured within each parity group. The user can add and delete VSC at any time and has complete control over the number of user cylinders and the emulation type of each CV.
Custom volume capacity Open system volumes are composed of 512-byte pieces called logical blocks. Logical Block Addresses (LBAs) are used for referring to locations within open system volumes. Use the following table when you configure custom volumes. Volume Type Logical Blocks Capacity (GB = 10003 Bytes) Capacity (GB = 10243 Bytes) OPEN-K 3,661,920 1.875 GB 1.831 GB OPEN-3 4,806,720 2.461 GB 2.292 GB OPEN-8 14,423,040 7.384 GB 6.877 GB OPEN-9 14,423,040 7.384 GB 6.
XP256 VSC operations The first step in performing VSC operations is to convert one or more normal-size volumes to VSC volumes. When you convert a normal volume to a VSC volume, all of the logical blocks in the volume become available for use in custom size volumes (CVs). You can define the first CU during the normal-to-VSC conversion process, and you can define additional CVs as needed under that VSC volume up to a maximum of 32 volumes per parity group (array group) using the install CV process.
Starting VSC operations The following procedure describes how to start VSC operations from the Function Select window. To start VSC operations: 1. Start and log in to the Remote Control software. 2. Connect to the desired controller. The Option Select window opens automatically. 3. Select Volume Size Configuration to start VSC operations. The VSC warning message appears to remind you that VSC operations (except Install CV) are destructive. 4. Select OK to continue. The Function Select window now opens. 5.
Viewing VSC configuration information The Refer Configuration function allows you to view the VSC information for the connected disk array. This function can be used to view the disk array configuration information before making changes and to verify changes. When you select Refer Configuration, all VSC functions will be disabled, and you will not be able to request any configuration changes.
Converting a normal volume to a VSC volume Caution The conversion function is a destructive operation. The data on the volume being converted will be lost when the operation is complete. Back up your data as needed before performing this operation. The Normal Volume to CV function allows you to convert a normal volume to a VSC volume. Some windows appear more than once during the process to present new information or allow you to perform different functions.
This process can take several minutes. The Device Emulation Configuration window displays. 3. Select the parity group that contains the volume you want to convert. 4. Select Detail. The Device Emulation Detail window opens and displays the LUN configuration of the selected parity group.
5. Select the volume you want to convert. 6. Select Define.
The Volume Size Configuration Define window opens. 7. Select the desired Emulation type, enter the desired Size, and select Add. If you make a mistake, select the volume, select Delete, and re-enter the correct information. The Volume Size Configuration Define window displays the space used, the space remaining, and number of logical devices in the parity group. 8. When you are finished adding information about the first CV, select OK to continue.
The Device Emulation Detail window now displays the requested normal-to-VSC volume change. 9. To convert another volume, go back to step 5. 10. When the desired new VSC volumes are listed, select Define to continue.
The Device Emulation Configuration window opens. 11. Select the parity group containing the requested new VSC volumes, and select Next. 12. Complete the procedure for configuring the new VSC volumes. See the procedure “Configuring new volumes” (page 91). Configuring new volumes To configure new volumes: The procedure begins with the Logical Device ID Configuration window open.
1.
Linear Assigns the LDEV IDs in sequential order for all unassigned logical addresses within the parity group. The Linear option is appropriate for users who actively balance their disk array work loads. Disperse Randomly rotates the LDEV IDs among multiple groups across the disk array, eliminating hot spots and improving data access. The Disperse option is appropriate for users who do not actively balance their disk array work loads. Detail Allows manual selection of LDEV IDs.
The Logical Device ID Configuration window now displays the status of the parity group as Complete. 3. Select Next to continue.
The Subsystem ID Configuration window now opens to allow you to assign one or more SSIDs. 4. If you do not need to assign an SSID, go to step 8. 5. To assign an SSID to a disk array, select the desired disk array and select the SSID button. Each installed disk array (64 LDEVs) is displayed by LDEV range (for example, 40-7f). The Subsystem ID Define window opens. 6. Enter the desired SSID. The SSID must be unique. 7. Select OK. The specified SSID is assigned to the selected disk array.
The Subsystem ID Configuration window displays. 8. Select Next to complete the normal-to-VSC conversion operation. The Volume Size Configuration window displays. 9. Select OK to implement the conversion. Caution 96 This operation is destructive. If in doubt, select Cancel to cancel the operation.
Installing custom volumes The Install CV function allows you to define one or more new CVs under an existing VSC volume. If there are no VSC volumes, you must convert a normal volume to a VSC volume before installing any CVs. The install operation does not occur until you select OK on the confirmation window at the end of the procedure. To install custom volumes: 1. Open the Function Select window. See “Starting VSC operations” (page 84). 2. Choose Install CV on the Function Select window. 3. Select OK.
This process can take several minutes. When the process is finished, the Number of CU Configuration window displays. 4. Select the CU number, and select Next. The Device Emulation Configuration window opens. 5. Select the parity group that contains the VSC volume, and select Detail. The Device Emulation Detail window opens.
6. Select the VSC volume in which you want to install the CVs. 7. Select Define.
The Volume Size Configuration Define window opens. 8. Select the emulation type for the new CV, enter the size. and select Add to add the requested CV to the list box. If you make a mistake, select the incorrect CV, and select Delete to remove it from the list box. 9. Repeat step 8 until you are finished adding the CVs. The Cancel button restores this window to its original configuration. 10. When the information displayed on the Volume Size Configuration Define window is correct, select OK to continue.
The Device Emulation Detail window now displays the new VSD volume information. 11. Select Define to continue. The Device Emulation Configuration window now displays the new parity group configuration information. 12. Complete the procedure for configuring the new CVS volumes. See the procedure “Configuring new volumes” (page 91).
Deinstalling custom volumes Caution The Deinstall CV function is a destructive operation. The data on the CV(s) being deinstalled will be lost when the operation is complete. The user is responsible for backing up the data as needed before performing this operation. The Deinstall CV function allows you to deinstall one or more CVs. The deinstall CV process deletes selected CVs on a VSC volume.
The remote console now loads the configuration information. This process can take several minutes.When the process is complete, the Number of CU Configuration window opens. 3. Select the desired CU. 4. Select Next. The Device Emulation Configuration window opens.
5. Select the parity group containing the CVs you want to deinstall. 6. Select Detail.
The Device Emulation Detail window opens. 7. Select the CV to be deinstalled. 8. Select Delete CV. A confirmation window opens. 9. Select Yes to deinstall the CV, or No to cancel the installation of this CV.
The Device Emulation Detail window opens, showing the CV as deleted. 10. Repeat steps 7 though 9 until you are finished deleting the CVs. Select the Cancel button to restore this window to its original configuration. 11. When the information displayed on the Device Emulation Detail window is correct, select OK to continue.
The Device Emulation Configuration window now displays the new parity group configuration information. 12. Select Next to complete the deinstall CV operation. The VS confirmation window appears. 13. Select OK to implement the CV deinstallation. Caution VSC operations This operation is destructive. If in doubt, select Cancel to cancel the operation.
Converting a VSC volume to a normal volume Caution The CV to Normal Volume function is a destructive operation. The data on the CV being converted is erased. Back up the data before performing this operation. The CV to Normal Volume function allows you to convert a VSC volume back to a normal volume. This operation deinstalls all CVs under a VSC volume and then reformats the VSC volume as a normal volume.
The remote console now loads the configuration information. This process can take several minutes. When the process is finished, the Device Emulation Configuration window opens. 4. Select the parity group containing the VSC volumes you want to convert back to normal. 5. Select Detail. The Device Emulation Detail window opens.
6. Select the CV volume you want to convert to a normal volume. 7. Select Delete CV. The CVs are listed under their VSC volume. The deinstall CV confirmation window displays. 8. Select Yes to continue.
The Device Emulation Detail window now displays the deinstalled volume without an assigned ID. 9. Select OK to assign a new LDEV ID.
The Device Emulation Configuration window opens. 10. Complete the procedure for configuring the new VSC volumes. See the procedure “Configuring new volumes” (page 91).
XP512 VSC operations VSC operations can be performed by users with administrator or custom VSC access privileges. Other users have view-only access to VSC functions. VSC operations include: • converting an LDEV into space • installing a CV • deinstalling a CV • converting a VSC volume to a normal volume using the Volume Initialize function You can deinstall selected CVs on a parity group and then reinstall them without deinstalling the entire parity group. The following operations are for the XP512 only.
4. Select OK to continue. A message reminds you that VSC operations (except Install CV) are destructive. The Function Select window now opens. 5. Select a VSC function: 114 View Configuration View the current VSC configuration of the connected subsystem. See “Viewing VSC configuration information” (page 115). You will not be able to request any changes. Volume to Space Converts one or more LDEVs into free space. See “Converting logical volumes to space” (page 120).This function is destructive.
Viewing VSC configuration information The View Configuration operation allows you to view the current VSC information for the connected subsystem. When you select View Configuration, all VSC functions will be disabled and you will not be able to request any configuration changes.
Device Emulation Configuration window The parity group configuration of each CU includes the number of LUNs, emulation type, and RAID level of each parity group. This information is displayed on the Device Emulation Configuration window. The installed parity groups are displayed by location: [frame number] - [parity group number]. The Device Emulation Configuration window displays the following information: 116 Grp The domain number and parity group number of the selected LDEV.
Logical Device ID Configuration window The Logical Device ID Configuration window displays LUN ID configuration for each parity group, including LUN IDs assigned to normal volumes and CVs. The Device ID Configuration window displays the following information: Grp The parity group number of the selected LDEV. Emulation The emulation type. Status The status of the selected LDEV. “Complete” indicates that LDEV IDs are assigned to all installed logical addresses.
Logical Device ID Define window The Logical Device ID Define window contains the LUN ID configuration for each parity group, including LUN IDs assigned to normal volumes and VSC volumes. The LDEV ID grid displays the LDEV ID configuration for the selected parity group or LDEV group. Open-system volumes are displayed in white. Customized volumes (if any) are displayed in blue to distinguish them from normal-sized volumes.
Subsystem ID Configuration window The Subsystem ID Configuration window displays the storage subsystem ID (SSID) configuration within each CU. The Subsystem list box displays the storage subsystems by CU number, LDEV ID range, and SSID (if defined).
Converting logical volumes to space Caution The Volume to Space function is a destructive operation. The data on the logical volumes is erased. Back up all data before performing this operation. The Volume to Space function allows you to convert one or more logical volumes (LDEVs) to space, which deletes the selected LDEVs from that parity group. The deleted logical volume(s) will remain as space in that parity group.
2. When the CVS confirmation message displays, make sure that I/Os of the volumes for which you want to perform the Volume to Space operation have been stopped. The CVS confirmation warning message appears. 3. Select OK to continue the operation or select Cancel to stop the operation and return to the Function Select window. The Number of CU Configuration window opens. 4. Select the number of CUs that are configured for this subsystem, and select Next.
The Device Emulation Configuration window now opens. 5. Select the parity group containing the logical volumes you want to convert to space (delete), and select Detail.
The Customized Volume Size Define window now opens. 6. Select the volumes to be converted to space, and select Delete. The Delete button is not available when either all of the LDEVs or the last remaining LDEV in the parity group are selected or the LDEV selected has a plus sign (+) next to it. If the selected volume has one or more assigned SCSI paths, or the volume is either an LDEV security volume or a LUSE volume, it is not available for VSC operations.
The Customized Volume Size Define window now displays the new VSC volume information. 7. Select OK to continue. The Device Emulation Configuration window now displays the new parity group configuration information. 8. Select Next to complete the Volume to Space operation. The CVS confirmation window appears. 9. Select OK to implement the requested Volume to Space operation. Caution 124 This operation is destructive.
Defining and installing custom-sized volumes The Install CV function allows you to define and install one or more CVs under an existing volume. You must convert a normal volume to space before installing any custom-sized volumes. The installation operation does not occur until you select OK on the VSC Confirmation window at the end of the complete procedure. To install a CV: 1. Choose Install CV on the Function Select window, and select OK. The remote console now loads the configuration information.
The Device Emulation Configuration window opens. 3. Select the parity group that contains the space required to create the CV(s), and select Detail. The Customized Volume Size Define window opens. 4. Select the emulation type for the new CV.
5. Enter the volume size in MB. 6. Select Add to add the requested CV to the list box. 7. Repeat steps 4 though 6 until you are finished adding the CVs. If you make a mistake, select the incorrect CV and select Delete to remove it from the list box. The Cancel button restores this window to its original configuration. 8. When the information displayed on the Customized Volume Size Define window is correct, select OK to continue.
Configuring new volumes To configure new volumes: The Logical Device ID Configuration window opens. 1. Select the incomplete parity group (group status displayed as ------), and select the desired LDEV ID assignment scheme: 128 Linear Assigns the LDEV IDs in sequential order for all unassigned logical addresses within the parity group. The Linear option is appropriate for users who actively balance their disk array work loads.
The Logical Device ID Define window opens and displays the assigned LDEV IDs for each CU. 2. Select the CU, enter the desired LDEV ID, and select OK.
The Logical Device ID Configuration window now displays the status of the parity group as Complete. 3. Select Next to continue. The Set SSID Boundary window opens to show the current SSID boundary type (64, 128, or 256). You cannot change the setting here. 4. Select Next to continue.
The Subsystem ID Configuration window now opens to allow you to assign one or more SSIDs. 5. If you do not need to assign an SSID, go to step 10. 6. To assign an SSID to a subsystem, select the subsystem. The subsystem (64, 128, or 256 LDEVs) is displayed by LDEV range (for example, 40-7f). 7. Select SSID. The Subsystem ID Define window opens. 8. Enter the SSID. The SSID must be unique and between 0004 and 00FD.
9. Select OK. The specified SSID is assigned to the selected subsystem. The Subsystem ID Configuration window opens. 10. Select Next to complete the install CV operation. The CVS confirmation window appears. 11. Select OK to implement the requested install CV operation (and SSID assignment, if requested).
Deleting VSC volumes To delete an individual CV within a VSC volume or parity group, use the volume to space operation. To convert a VSC volume to a normal volume, see the following section.
Converting a VSC volume to a normal volume Caution The Volume Initialize function is a destructive operation. The data on the CV being converted is erased. Back up the data before performing this operation. The Volume Initialize function allows you to convert a VSC volume back to a normal volume. This operation deinstalls all customized volumes under a VSC volume and then reformats the VSC volume as a normal volume.
The CVS confirmation message displays. 2. Verify that I/Os of the volumes for which you want to perform the Volume Initialize operation have been stopped. Caution If you continue the operation without stopping I/Os, your data may be erased. 3. Select OK to continue the operation. Select Cancel to stop the operation and return to the Function Select window. The Device Emulation Configuration window opens. 4.
5. After deleting all of the VSC volumes that you want to convert back to normal, select Next. The Logical Device ID Configuration window opens. 6. Complete the procedure for configuring new VSC volumes. See “Configuring new volumes” (page 128).
5 Troubleshooting You or the HP service representative can perform troubleshooting operations. See “Error conditions” on page 138 for troubleshooting information. If you are unable to resolve an error condition, ask your HP service representative for assistance.
Error conditions The following table describes some general error conditions, along with the recommended resolution for each item. If you are unable to resolve an error condition, please call your HP representative. Error condition Recommended action Remote control will not add or connect with an array. Check the cabling and the LAN. Make sure that both the computer and LAN cabling are firmly attached and the LAN is operating properly. The remote console PC experiences an error.
Glossary AL Arbitrated loop. AL-PA Arbitrated loop physical address. BC The HP StorageWorks Business Copy XP software program. BC lets you maintain up to nine internal copies of logical volumes on the disk array. CA The HP StorageWorks Continuous Access XP software program. CA lets you create and maintain duplicate copies of logical volumes on a remote disk array. DKC (disk controller unit) The array cabinet that houses the channel adapters and service processor (SVP).
FCP Fibre Channel Protocol. GB Gigabytes. HBA Host bus adapter. HP Hewlett-Packard Company. H/W Hardware. LD, LDEV Logical device. An LDEV is created when a RAID group is divided into sections using a selected host emulation mode (for example, OPEN-9 or OPEN-M). The number of resulting LDEVs depends on the emulation mode. The term LDEV is often used synonymously with the term volume. LU Logical unit. LUN Logical unit number.
XP48 XP256 OPEN-K/M are also supported. XP512 XP1024 OPEN-V is also supported. OS Operating system. PA Physical address. path “Path” and “LUN” are synonymous. Paths are created by associating a port, a target, and a LUN ID with one or more LDEVs. PC Personal computer. port The number of ports on an XP disk array depends on the number of supported I/O slots and the number of ports available per I/O adapter. The XP family of disk arrays supports Fibre Channel, ESCON, and SCSI ports.
SNMP Simple Network Management Protocol. SVP Service processor. A laptop PC built into the disk array. The SVP provides a direct interface into the disk array, and is used by the HP service representative only. TB Terabytes. TID Target ID. volume An LDEV can also be called a volume. The LDEV ID is internal to the disk array and is not related to the volume serial number (volser) or LUN number. VSC Volume Size Configuration.
Index A audience intended 5 authorized reseller, HP 8 C conventions documentation 6 custom sized volumes defining and installing 132 custom volumes deinstalling 102 CVS converting a CVS volume to a normal volume 108 converting a normal volume to a CVS Volume 86 converting volumes to space 120 deinstalling custom volumes 102 installing custom volumes 97 operations 79 viewing configuration information 85 volume capacity 82 D defining and installing custom sized volumes 132 Index disk arrays supported 5 doc
L LUNs creating expanded 61 releasing expanded 74 LUSE creating expanded LUNs 61 overview 59 releasing expanded LUNs 74 Troubleshooting 137 V view configuration function description 115 W websites HP storage 7 O operation starting 24 P paths adding 27 deleting 31 overview 27 port address setting fibre channel 47 R related documentation list of 5 S SSID requirements 82 system administrator required knowledge 5 T technical support HP 7 terminology terms and concepts 15 topology setting fibre channel 55 144
