Confirming the capacity and number of migration-target Azure managed disks

Virtual Storage Platform One SDS Cloud for Microsoft Azure Data Migration
Version
1.18.x
Audience
anonymous
Part Number
MK-24VSP1SDS032-02

  • Required role: Service and Storage

  1. Confirm the capacity and number of migration-target Azure managed disks on the Azure portal.

    For the migration requirements, see Detailed specifications.

  2. Verify the number and capacity of the volumes in VSP One SDS Block.

    REST API: GET /v1/objects/volumes

    CLI: volume_list

  3. Verify the allocatableCapacity of each storage controller in VSP One SDS Block.

    REST API: GET /v1/objects/storage-controllers

    CLI: storage_controller_list

  4. Verify if a storage controller that satisfies both of the following conditions exists in VSP One SDS Block:

    Conditions:

    • The number of created volumes plus the number of Azure managed disks to be migrated is 1024 or less.

    • The total capacity of Azure managed disks to be migrated is (allocatableCapacity [MiB] of the storage controller × 0.8 - usedCapacity [MiB] of the storage controller) or less.

      The reserved capacity of the virtual volumes corresponding to the Azure managed disks to be migrated [MiB] = totalCapacity [MiB] of the Azure managed disks to be migrated + (168 [MiB] × (1)) + 42 [MiB]

      Here, (1) is the calculation result of totalCapacity [MiB] / 3,145,548 [MiB] rounded up to the nearest integer.

    • The total reserved capacity of the virtual volumes corresponding to the Azure managed disks to be migrated is LogicalLimit [MiB] of the storage controller or less.

    Data migration can be carried out if both conditions are met. Go to Adding initiator nodes.

    Go to step 5 if either of the conditions is not met.

  5. By verifying if the following conditions are met, you can verify that the intended Azure managed disks can be migrated to the storage controller in VSP One SDS Block.

    If there are storage controllers that meet the following conditions, you can perform data migration for all the migration-target Azure managed disks.

    Conditions:

    • The number of volumes per storage controller is 1,024 or less.

    • The total capacity of volumes per storage controller is 96.96 [TiB] or less.

      Volume capacity [MiB] = totalCapacity [MiB] in volume information + (168 [MiB] × (1)) + 42 [MiB]

      Here, (1) is the result of totalCapacity [MiB] / 3,145,548 [MiB] with the decimal rounded up to the nearest integer.

    • The reserved capacity of the virtual volumes corresponding to the Azure managed disks to be migrated is (allocatableCapacity [MiB] of the storage controller × 0.8 - usedCapacity [MiB] of the storage controller) or less.

  6. If data migration is unsuccessful with the procedure in step 5, perform the following:

    • Expand the capacity of the storage pool (add drives and expand the storage pool; or add storage nodes).

    • Delete the Azure managed disks to be migrated.

    • Delete unnecessary volumes.