Use the following procedure when creating FlashCopy logical drives on a host running IRIX 6.5 (or higher), using XLV logical logical drives. Failure to complete the steps listed may result in an inaccurate point-in-time image of the base logical drive.
For a process overview of the FlashCopy logical drive creation process, refer to Create FlashCopy Logical Drive Wizard: Process Overview - Unix with Logical Drive Manager Logical Drives.
FlashCopy logical drives may be reused (for frequent or nightly backups) or may be created for one-time usage (speculative change or upgrade testing). For instructions on how to reuse a disabled FlashCopy logical drive, see Reusing FlashCopy Logical Drives.
Important: RDAC
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Start the storage management software. Result: The Enterprise Management Window is displayed. |
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Launch an Subsystem Management Window, using one of the following methods:
Result: The Subsystem Management Window is opened in a separate window. |
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Within the Logical View of the Subsystem Management Window, select a standard logical drive
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Assign a logical drive-to-LUN mapping
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Perform a Multi-Path Proxy (MPP) scan. At the host prompt, type the following, then press Enter: /opt/mpp/bin/mppScan Once logical drives have been created and logical drive-to-LUN mappings have been defined, MPP is run to ensure that the operating system is aware of the newly created logical drives, without having to complete reboot the system. |
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Run the SMdevices Once logical drives have been created and logical drive-to-LUN mappings have been defined, the SMdevices utility is run to ensure that the logical drive name and the operating system device name (assigned by the operating system) correlate. |
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Disable the FlashCopy logical drive using one of the following methods:
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Important: All I/O activity to the base logical drive should be stopped at this point (or data transfer suspended). This will ensure that an accurate point-in-time image of the base logical drive is captured. |
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Unmount the base logical drive. |
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In the storage management software, re-create the FlashCopy logical drive using one of the following methods:
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Important: If I/O activity to the base logical drive was stopped or data transfer was suspended, resume I/O activity to the base logical drive at this time (or re-enable data transfer). |
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Complete the followings steps to create a new FlashCopy logical logical drive.
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Remount the base logical drive (to its original host). |
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Mount the FlashCopy logical drive to its intended host. |
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Use the FlashCopy logical drive in conjunction with your backup application, for speculative testing, or with another application. |
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Important: You will be required to delete the XLV logical drive for the FlashCopy logical drive before disabling it in the storage management software. Refer to your Once the FlashCopy logical drive is no longer required, disable the FlashCopy logical drive. If you disable the FlashCopy logical drive instead of deleting it, you can retain the FlashCopy logical drive and its associated repository logical drive. Then, when you need to create a different FlashCopy of the same base logical drive, you can re-create the disabled FlashCopy logical drive. This takes less time than creating a new FlashCopy logical drive, and will stop any reduction in performance that may occur if the FlashCopy logical drive remains available. For information on disabling or re-creating a FlashCopy, see Disabling a FlashCopy Logical Drive and Re-creating a FlashCopy Logical Drive. For information on deleting a FlashCopy logical drive, see Deleting a Logical Drive. For command reference information on disabling, re-creating, and deleting a FlashCopy logical drive, refer to the Enterprise Management Window online help. |
Typically, once a FlashCopy logical drive has been created, it is disabled until a new point-in-time image of the same base logical drive is required. To create a new point-in-time image of the same base logical drive, complete the following steps.
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Important: All I/O activity to the base logical drive should be stopped at this point (or data transfer suspended). This will ensure that an accurate point-in-time image of the base logical drive is captured. |
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Unmount the base logical drive. |
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In the storage management software, re-create the FlashCopy logical drive using one of the following methods:
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Complete the following steps to create a new FlashCopy logical logical drive.
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Remount the base logical drive (to its original host). |
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Remount the FlashCopy logical drive to its intended host. |
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Use the FlashCopy logical drive in conjunction with your backup application (or another application). |
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Important: You will be required to delete the XLV logical drive for the FlashCopy logical drive before disabling it in the storage management software. Refer to your Once the FlashCopy logical drive is no longer required, disable the FlashCopy logical drive. If you disable the FlashCopy logical drive instead of deleting it, you can retain the FlashCopy logical drive and its associated repository logical drive. Then, when you need to create a different FlashCopy of the same base logical drive, you can re-create the disabled FlashCopy logical drive. This takes less time than creating a new FlashCopy logical drive and will stop any reduction in performance that may occur if the FlashCopy logical drive remains available. For more information, see Disabling a FlashCopy Logical Drive and Re-creating a FlashCopy Logical Drive. For command reference information on disabling and recreating a FlashCopy logical drive, refer to the Enterprise Management Window online help. |
Create FlashCopy Logical Drive Wizard: Additional Instructions
Learn About Creating FlashCopy Logical Drives
Creating a FlashCopy Logical Drive Using the FlashCopy Wizard