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    24 TB VM difficult migration

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    • L Offline
      laurentm
      last edited by

      Hi, I would like to get an advice to solve an annoying migration.
      The VM has a 700 GB system disk on local storage and a 24 TB i-scsi storage (with 12 x 2 TB virtual disks).

      I want to move both VM and datas to a newer App server and a newer NAS storage. Everything is connected via 10 GB Nics.

      All my attempts of live migration have failed after 3h30mn with an error message (insufficient temporary space on source).
      I found on an old Citrix board that 200% free on source and 300% free on destination are required to perform successfully a live migration.

      So, the remaining option is cold migration. The downtime could be 3 or 4 days because the Synology rackstation is not that fast on contents with small files. This appears unacceptable to the customer.

      Can I use a warm migration instead ? or does it requires a lot of temporary space ?

      Regards,

      Laurent

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      • olivierlambertO Offline
        olivierlambert Vates 🪐 Co-Founder CEO
        last edited by

        Hi,

        You can use the warm migration in your case, yes 🙂 To me, that's one of the use case where it's safer than a live/hot one.

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