Forum Discussion

basurabjs's avatar
basurabjs
Level 3
3 years ago

Disk Pool Migration

Hello everybody,

I am splitting my master server with a new media. I have the new media server installed and added to the master. I want to "migrate" a diskpool/STU from my master to the new media. This diskpool is a unit added to the master in unit T:\ . How can i migrate this diskpool?. Mi idea is disconnect this unit from master, connect to media and create a new diskpool, update my STU and change my policies, but i don't know if is the correct procedure.

Regards,

 

12.x and Earlier
Windows Server 2016
  • quebek's avatar
    quebek
    3 years ago

    Hi

    My two cents...

    1. I would created new MSDP on new media server. 
    2. find all backups residing in old MSDP - using NetBackup Management/Storage/Catalog option - select there duplication
    3. Found images duplicate to new media server - it will be optimized duplication
    4. Once all backup images are there on new MSDP - expire the ones from old MSDP

    IMHO simplest way to achieve what you want....

  • Nicolai's avatar
    Nicolai
    Moderator
    3 years ago

    Hi basurabjs 

    My recommendation is to create a new disk pool on the media servers, and let the backups on the master server expire slowly. This way you don't put your existing backups at risks.

    You can't move a disk pool from one server to another with simple GUI clicks, it's a manual duplicate and expire task. Netbackup record disk pool ID in the database, if you move a disk pool contents without involving Netbackup you will be in trouble. 

    You could in theory move the disk pool on a LUN level and do a disk pool import, but the import is likely going to take days, depending on the number of backups, so I don't recommend going down that path.

    There is tech notes on the subject however:

    How to import deduplication disk images

    https://www.veritas.com/support/en_US/article.100027610

    How to import NetBackup backup images via the NetBackup Administration Console GUI.

    https://www.veritas.com/support/en_US/article.100017201

    • basurabjs's avatar
      basurabjs
      Level 3
      3 years ago

      OK, It seems that migration of diskpool is not simple. What do you think about basicDisk? Can I change media and path a muve the Lun to the new media?

  • quebek's avatar
    quebek
    Moderator
    3 years ago

    Hi

    My two cents...

    1. I would created new MSDP on new media server. 
    2. find all backups residing in old MSDP - using NetBackup Management/Storage/Catalog option - select there duplication
    3. Found images duplicate to new media server - it will be optimized duplication
    4. Once all backup images are there on new MSDP - expire the ones from old MSDP

    IMHO simplest way to achieve what you want....

    • basurabjs's avatar
      basurabjs
      Level 3
      3 years ago

      I am considering your option and I think it is a simple way. No problem to expire primary copy?

      • quebek's avatar
        quebek
        Moderator
        3 years ago

        Hello

        I see no issue to expire primary copy - just make sure your secondary was for 10000% made :) and go for it.

    • davidmoline's avatar
      davidmoline
      Level 6
      3 years ago

      Hi basurabjs 

      If the pool is not Advanced Disk or Basic Disk, then no the article is not applicable. 

      To add further, internal to the MSDP configuration is information regarding the name, you cannot simply move the storage volume (or contents) to another media server and expect it to work. There is also the issue ot the media ID of the MSDP device (the @aaaa? value) which the NetBackup catalog references in the backup fragments. 

      David