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  1. Migration Toolkit for Virtualization
  2. MTV-3676

[DOC] Add note that there are performance issue for Storage Copy Offload

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    • Resolution: Unresolved
    • Icon: Major Major
    • 2.10.2
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      Storage-Offload Known Issue (MTV 2.10)

      Test Scope:
      Storage-offload tests using 10 VMs and 50 VMs (2 disks each 50GB + 50GB) on a single ESXi host , vSphere 7.0.3.

      Issue Summary:
      During storage-offload migrations, the scheduling cost function appears incorrect.
      This results in multiple populate-pods starting simultaneously on the same ESXi host, even though max_vm_inflight is set to 2.

      As a result, more than two offload operations run in parallel, causing migration failures.

      On VMware, vmkfstools enforces a strict limit of 2 active copy operations per host, and exceeding this limit leads to errors and plan failure.

      Impact:
      Single-host storage-offload plans may fail when more than 2 migrations are triggered at once observed in 10-VM and 50-VM test runs.

              rhn-support-anarnold A Arnold
              rhn-support-anarnold A Arnold
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                Created:
                Updated: