8.1. IBM DS8000 Boot from SAN Operating System Cloning

If you have a boot from SAN server, you will be able to easily clone it for a backup or deployment purpose using the native DS8000 FlashCopy. As mentioned earlier FlashCopy is an optional feature for the DS8000, which means it will require an additional license to enable. The SAN administrator can initiate a FlashCopy of Boot from SAN Disk using the DS8000 Storage Manager GUI or using the DSCLI.

Creating a FlashCopy on the DS8000 can be as easy as running the following command on DS8000 DSCLI, where 6100 is the source LUN & 6101 is the target LUN.

mkflash -seqnum 01 6100:6101

After creating a FlashCopy of a certain LUN in case you need to restore the server to its original state all you have to do is shutdown the server (shutdown will be required if it’s the boot LUN only) & Map the FlashCopy Target LUN in the place of the FlashCopy Source LUN.

In case you are using FlashCopy for OS deployment, you will just map the FlashCopy Target to the new server. Then power up the servers, which will boot up using the new cloned LUNs. If you are using FlashCopy for OS deployment for windows machines, you would need to use a utility like newsid or sysprep to generate a new security ID for each server in your environment after the FlashCopy operation has been completed.

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Back to: IBM Tivoli Storage FlashCopy Manager Tutorial Index



Comments (2)    Posted in DS8000    

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2 Responses to '8.1. IBM DS8000 Boot from SAN Operating System Cloning'

  1. Mary Longoria - May 3rd, 2011 at 9:28 am

    I am looking for an experienced SAN & TSM & Disaster Recovery consultant. The client wants the consultant to be on-site in San Angelo, TX.

    Competitive rate and benefits.

    Must have storage provisioning on SVC, DS8K and DS6K and XIV

    Please send me your resume and we can discuss

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  2. prashanth chawla - August 2nd, 2012 at 12:00 am

    hello,
    am installing tivoli storage manager server v6.3 but am getting an error like this as shown below..

    STDERR : RepositoryManager: Trying fallback repository location…
    STDERR : key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Tivoli Storage Manager doesn’t exist
    STDERR : XMLScriptWriter: No Installation Objects were skipped
    STDERR : Retrying Installables deferred in pass 0
    STDERR : Deferral retries done because:
    STDERR : There were no deferrals in the last pass.
    STDERR : SHUTDOWN REQUESTED
    STDERR : REGISTRY ALREADY STORED!
    STDERR : Exiting with exit code: 1
    STDERR : cleanUp()
    STDERR : calling cleanUpWin32()

    please send me any solution for this


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