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Manually assigning drives for pool 1 (ONTAP 9.4 or later)

If the system was not preconfigured at the factory and does not meet the requirements for automatic drive assignment, you must manually assign the remote pool 1 drives.

About this task

This procedure applies to configurations running ONTAP 9.4 or later.

Details for determining whether your system requires manual disk assignment are included in Considerations for automatic drive assignment and ADP systems.

If the configuration has fewer than four external shelves per site, you must check that automatic drive assignment on all nodes is disabled and manually assign the drives.

When the configuration includes only two external shelves per site,pool 1 drives for each site should be shared from the same shelf as shown in the following examples:

  • node_A_1 is assigned drives inbays 0-11 on site_B-shelf_2 (remote)

  • node_A_2 is assigned drives inbays 12-23onsite_B-shelf_2 (remote)

From each node in the MetroCluster IP configuration, assign remote drives to pool 1.
  1. Display the list of unassigned drives: disk show -host-adapter 0m -container-type unassigned

    Example

    cluster_A::> disk show -host-adapter 0m -container-type unassigned
                         Usable           Disk    Container   Container
    Disk                   Size Shelf Bay Type    Type        Name      Owner
    ---------------- ---------- ----- --- ------- ----------- --------- --------
    6.23.0                    -    23   0 SSD     unassigned  -         -
    6.23.1                    -    23   1 SSD     unassigned  -         -
    .
    .
    .
    node_A_2:0m.i1.2L51       -    21  14 SSD     unassigned  -         -
    node_A_2:0m.i1.2L64       -    21  10 SSD     unassigned  -         -
    .
    .
    .
    48 entries were displayed.

    cluster_A::>
  2. Assign ownership of remote drives (0m) to pool 1 of the first node (for example, node_A_1): disk assign -disk disk-id -pool 1 -owner owner-node-name

    disk-id must identify a drive on a remote shelf of owner-node-name.

  3. Confirm that the drives were assigned to pool 1: disk show -host-adapter 0m -container-type unassigned
    Note
    The iSCSI connection used to access the remote drives appears as device 0m.

    Example

    The following output shows that the drives on shelf 23 were assigned because they no longer appear in the list of unassigned drives:

    cluster_A::> disk show -host-adapter 0m -container-type unassigned
                         Usable           Disk    Container   Container
    Disk                   Size Shelf Bay Type    Type        Name      Owner
    ---------------- ---------- ----- --- ------- ----------- --------- --------
    node_A_2:0m.i1.2L51       -    21  14 SSD     unassigned  -         -
    node_A_2:0m.i1.2L64       -    21  10 SSD     unassigned  -         -
    .
    .
    .
    node_A_2:0m.i2.1L90       -    21  19 SSD     unassigned  -         -
    24 entries were displayed. 

    cluster_A::>
  4. Repeat these steps to assign pool 1 drives to the second node on site A (for example, node_A_2).
  5. Repeat these steps on site B.