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  • 1.  Volume group thick clone

    Posted Wed June 26, 2024 09:26 AM

    Hi everyone, I have a question about Volume group thick clones
    I would like to backup by attaching a clone volumes to the backup server.
    Is it possible to repeatedly create a volume group thick clone with the same target volumes every day like the previous Flashcopy backup method?



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    JONGCHUL LEE
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  • 2.  RE: Volume group thick clone

    Posted Wed June 26, 2024 10:26 AM

    Hi,

    1. Why do you need thick clones if you only read and backup? you can use thin clones for that.
    2. Yes you can use the new "refreshfromsnapshot" command to do that. check the syntax of the refreshfromsnapshot command


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    Nezih Boyacioglu
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  • 3.  RE: Volume group thick clone

    Posted Wed June 26, 2024 10:09 PM

    Thank you so much
    I have additional questions.
    At volume group thick clones, the thick clones target volumes become independent volumes and At volume group thin clones does the relationship between volume group snapshots remain?
    Like as old flashcopy clone, old flashcopy snapshot



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    JONGCHUL LEE
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  • 4.  RE: Volume group thick clone

    Posted Thu June 27, 2024 05:10 AM

    Yes Jongchul it is like flashcopy



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    Nezih Boyacioglu
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  • 5.  RE: Volume group thick clone

    Posted Mon July 22, 2024 10:24 PM

    Thank you for your reply

    I understand that the "refreshfromsnapshot" function is available in Non-LTS 8.6.2 or higher.
    Our customer is using LTS 8.6.0.4 version.
    Do you know when this function will be available in LTS 8.6.0.X version ?



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    JONGCHUL LEE
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  • 6.  RE: Volume group thick clone

    Posted Tue July 23, 2024 03:18 AM

    This feature is available in the 8.7.0 LTS release - it will not be made available in the 8.6.0 LTS.



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    Chris Bulmer
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  • 7.  RE: Volume group thick clone

    Posted Tue July 23, 2024 04:01 AM

    Hello Jongchul Lee,

    it's unlikely, that this function will be added to any 8.6.0 as that would mean we add new code to what we labeled as a Long Term Support release, and we do that only to fix defects, and not to introduce new functions.

    So with 8.7.0 the next LTS is already available, and your client should consider using 8.7 to gain this function

    Markus Standau, IBM



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    Markus Standau
    Offering Leader for FlashSystems and SVC
    IBM
    Walldorf
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  • 8.  RE: Volume group thick clone

    Posted Tue July 23, 2024 05:13 AM
    Edited by Evelyn Perez Tue July 23, 2024 05:13 AM

    With Very Very Very Very few exceptions we don't put feature function back.  Features go into the current and next releases.  If we put new features into old releases we would never be able to put out new function?

    We do port back fixes and security updates, but for general features - those go forward.

    Also - don't be afraid to pick up a non-LTS if there is a feature you need.  The impact is they will have to update to the next non-LTS or LTS to pick up features, but they are no different to the LTS .0/.1 releases.  They are fully tested released that go through the same test cycles as we have for LTS releases.

    But as stated by multiple people, 8.7.0 has shipped and is the next LTS, so anything you wanted to pick up from 8.6.1, 8.6.2 or 8.6.3 will be in 8.7.0.



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    Evelyn Perez
    IBM Senior Technical Staff Member
    IBM Storage Virtualize Software Architect for SVC and FlashSystem
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