Forum Discussion

winter_prince's avatar
winter_prince
Level 4
9 years ago

VxVM Migrate Data and remove the disk

Hello Friends,

 

We have Veritas Volume Manger (4.1) configured in Solaris 10... We have a disk group:  where there are two local disks along with several SAN Disks... I am looking for a way to migrate the data/volumes in the local disk to SAN Disks and safely remove the local disks from veritas control.. we can add new disks, if required... Please assist.

 

Regards,

 

 

 

business continuity
Solaris
Storage Foundation
Tip-How to
  • RiaanBadenhorst's avatar
    RiaanBadenhorst
    9 years ago

    Hi,

     

    1. Assign the new luns
    2. initialize the new luns with vxdisksetup
    3. add the newly initialized luns to the diskgroup with vxdg
    4. create a mirror using the new luns with vxasssist 
    5. monitor the progress of the mirror sync with vxtask
    6. then remove the luns you don't want from the mirror with vxassist
    7. remove the luns from diskgroup using vxdg
    8. uninitialize the disks with vxdiskunsetup
    9. optionally remove the disks from vxvm control using vxdmpadm
  • winter_prince's avatar
    winter_prince
    Level 4
    9 years ago

    HI Marianne,

    Thanks for the suggestion... I managed to move the data out of disk using the mirror method...

    Regards,

    Prince.

  • Marianne's avatar
    Marianne
    Level 6
    9 years ago

    Why do you want to use vxevac and not the mirror method?

    The mirror attach, sync, break off and removal of disks from dg requires no downtime.

     

  • winter_prince's avatar
    winter_prince
    Level 4
    9 years ago

    Hi Marianne,

    Thanks for the links, I will review them.

    Let me clarify my problem statement..

    The problematic disk group contains both local disks (2x 148 GB sun/hitachi disks ) and SAN disks (14 disks)... I want to remove the local disks from this disks groups.

    So, the SAN Disk/array is already part of the disk group and functional in this particular server...

    The whole idea is to migrate this system to a different machine (Solaris P2v), which would require the disk group export/deport at source and import at the configured destination... Only the two local disks are posing problems to me...

    My big question is, can the following command be run without any impact to i/o operations...? Or does this require a downtime.

     

    vxevac -g <disk group> <source disk> <target disk>

     

    Regards,

    Prince.

     

     

  • Marianne's avatar
    Marianne
    Level 6
    9 years ago

    A couple of TechNotes:

    How to migrate data one storage array another storage array
    http://www.veritas.com/docs/000036435 

    Migrating volumes from one storage array to another using a mirror (plex)
    http://www.veritas.com/docs/000061702

    How to migrate volumes to new disk enclosures using Veritas Storage Foundation
    http://www.veritas.com/docs/000018274

    PS:

    Are you aware of the fact that version 4.1 ran out of Support in 2011? 
    Have you checked if the SAN disk/array is compatibile with VxVM 4.1?

  • RiaanBadenhorst's avatar
    RiaanBadenhorst
    Level 6
    9 years ago

    Hi,

     

    1. Assign the new luns
    2. initialize the new luns with vxdisksetup
    3. add the newly initialized luns to the diskgroup with vxdg
    4. create a mirror using the new luns with vxasssist 
    5. monitor the progress of the mirror sync with vxtask
    6. then remove the luns you don't want from the mirror with vxassist
    7. remove the luns from diskgroup using vxdg
    8. uninitialize the disks with vxdiskunsetup
    9. optionally remove the disks from vxvm control using vxdmpadm