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RS74's avatar
RS74
Level 2
10 months ago

Procedure to move storage

Hi folks,

We have 2 node VCS cluster

RDM is used for shared storage.

DEVICE TYPE DISK GROUP STATUS
san_vc2_000270 auto:cdsdisk wdg0101 wdg01 online thinrclm clone_disk

We are moving storage from IBM to HPE.

I have added new rdm disk and have added this disk to the disk group.

3pardata0_235 auto:cdsdisk wdg0102 wdg01 online thinrclm clone_disk

I am going to evacuate disk01 to disk02 by the following and will all volumes.

vxevac -g wdg01 wdg0101 wdg0102

Do I need to freeze/stop the clusters before I start evacuating?
Is there a note/documentation that I can follow?
After the volumes are moved, how do I delete the old disk? Do I need to shutdown cluster for this?
Do i need to make any changes from VCS cluster after the above is done?

If anybody can list the steps/procedure to do, will be highly appreciated.

I have looked at the note 100009768, but this doesn't answer my questions.

Regards

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  • frankgfan's avatar
    frankgfan
    Moderator
    9 months ago

    Hello,

    Please see my answers/comments in line below start with "<<<"

    ...

    Do I need to freeze/stop the clusters before I start evacuating?

    <<<  freezing the service groups with the volume resourses on which the storage will be migrated is highly recommended.   Stopping the cluster is no a MUST as stopping the cluster may resautl in dg deport


    Is there a note/documentation that I can follow?

    <<< there are some technotes covering this topic.  eg.

    How to migrate volumes to new disk enclosures using Veritas InfoScale and Storage Foundation

    https://www.veritas.com/support/en_US/article.100009769#Move%20the%20volumes%20to%20the%20target%20disks


    After the volumes are moved, how do I delete the old disk? Do I need to shutdown cluster for this?
    Do i need to make any changes from VCS cluster after the above is done?

    <<< you do not need to shutdown the cluster to remove the old storage.

    <<< once the data is evacuated, to free up the old disks, run the command below

    <<< vxdg -g dg_name rmdisk disk1 disk2 ...   (refer to vxdg command manpage for the command syntax)

    <<< prior to performing data migration, consider the followings

    1. collect a fresh DataCollector/VRTSexplorer report

    2. a full data backup

    Good luck!