PowerHA for AIX

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storage Migration

  • 1.  storage Migration

    Posted Sat October 10, 2015 05:51 PM

    Originally posted by: Mussadeg


     Dear All,

     

    We have a two Power5 servers running an app and db in a hacmp cluster. The system is running on a ESS Shark storage system, now we have an issue in space and we've decided to move from the shark to the available DS4700.

     

    The shared volume group is configured with vpaths vpath0-vpath7 each path has different number of hdisks presented from the ESS. Now as mentioned above we're migrating!! what is the best scenario with least interruption.

     

    I have different thoughts about migration but im still having issues migrating from vpath to hdisk ! Or hdisk to hdisk !

     

    Thank you

     

    Regards,,

     

    Mussadeg



  • 2.  Re: storage Migration

    Posted Thu November 19, 2015 01:18 AM

    Originally posted by: ChennakesavuluBoddapati


    I believe you can allocate same size of disks from DS4K

    1. use mirrorvg to add the second disk to vg

    2. syncvg on the VGs so that both disks have exactly same copies.

    3. unmirrorvg and reducevg the first disk,