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ONTAP MetroCluster

Reassign the root aggregate disks to the new MetroCluster IP controller module

Contributors netapp-aoife
PDFs

Reassign the root aggregate disks to the new controller module, using the system IDs that you gathered earlier.

About this task

This task is performed in Maintenance mode.

The old system IDs were identified in Gather information before the upgrade.

The examples in this procedure use controllers with the following system IDs:

Node

Old system ID

New system ID

node_B_1

4068741254

1574774970
Steps

  1. Cable all other connections to the new controller modules (FC-VI, storage, cluster interconnect, and so on).

  2. Halt the system and boot to Maintenance mode from the LOADER prompt:

    boot_ontap maint

  3. Display the disks owned by node_B_1-old:

    disk show -a

    The command output shows the system ID of the new controller module (1574774970). However, the root aggregate disks are still owned by the old system ID (4068741254). This example doesn't show drives owned by other nodes in the MetroCluster configuration.

    Caution Before you proceed with disk reassignment, verify that the pool0 and pool1 disks that belong to the node's root aggregate are displayed in the disk show output. In the following example, the output lists the pool0 and pool1 disks owned by node_B_1-old. 
    *> disk show -a
Local System ID: 1574774970

  DISK         OWNER                     POOL   SERIAL NUMBER    HOME                      DR HOME
------------   -------------             -----  -------------    -------------             -------------
...
rr18:9.126L44 node_B_1-old(4068741254)   Pool1  PZHYN0MD         node_B_1-old(4068741254)  node_B_1-old(4068741254)
rr18:9.126L49 node_B_1-old(4068741254)   Pool1  PPG3J5HA         node_B_1-old(4068741254)  node_B_1-old(4068741254)
rr18:8.126L21 node_B_1-old(4068741254)   Pool1  PZHTDSZD         node_B_1-old(4068741254)  node_B_1-old(4068741254)
rr18:8.126L2  node_B_1-old(4068741254)   Pool0  S0M1J2CF         node_B_1-old(4068741254)  node_B_1-old(4068741254)
rr18:8.126L3  node_B_1-old(4068741254)   Pool0  S0M0CQM5         node_B_1-old(4068741254)  node_B_1-old(4068741254)
rr18:9.126L27 node_B_1-old(4068741254)   Pool0  S0M1PSDW         node_B_1-old(4068741254)  node_B_1-old(4068741254)
...

  4. Reassign the root aggregate disks on the drive shelves to the new controller:

    disk reassign -s <old-sysid> -d <new-sysid>

    Note If your MetroCluster IP system is configured with Advanced Disk Partitioning, you must include the DR partner system ID by running the disk reassign -s old-sysid -d new-sysid -r dr-partner-sysid command.

    The following example shows reassignment of drives:

    *> disk reassign -s 4068741254 -d 1574774970
Partner node must not be in Takeover mode during disk reassignment from maintenance mode.
Serious problems could result!!
Do not proceed with reassignment if the partner is in takeover mode. Abort reassignment (y/n)? n

After the node becomes operational, you must perform a takeover and giveback of the HA partner node to ensure disk reassignment is successful.
Do you want to continue (y/n)? Jul 14 19:23:49 [localhost:config.bridge.extra.port:error]: Both FC ports of FC-to-SAS bridge rtp-fc02-41-rr18:9.126L0 S/N [FB7500N107692] are attached to this controller.
y
Disk ownership will be updated on all disks previously belonging to Filer with sysid 4068741254.
Do you want to continue (y/n)? y

  5. Check that all disks are reassigned as expected:

    disk show

    *> disk show
Local System ID: 1574774970

  DISK        OWNER                      POOL   SERIAL NUMBER   HOME                      DR HOME
------------  -------------              -----  -------------   -------------             -------------
rr18:8.126L18 node_B_1-new(1574774970)   Pool1  PZHYN0MD        node_B_1-new(1574774970)  node_B_1-new(1574774970)
rr18:9.126L49 node_B_1-new(1574774970)   Pool1  PPG3J5HA        node_B_1-new(1574774970)  node_B_1-new(1574774970)
rr18:8.126L21 node_B_1-new(1574774970)   Pool1  PZHTDSZD        node_B_1-new(1574774970)  node_B_1-new(1574774970)
rr18:8.126L2  node_B_1-new(1574774970)   Pool0  S0M1J2CF        node_B_1-new(1574774970)  node_B_1-new(1574774970)
rr18:9.126L29 node_B_1-new(1574774970)   Pool0  S0M0CQM5        node_B_1-new(1574774970)  node_B_1-new(1574774970)
rr18:8.126L1  node_B_1-new(1574774970)   Pool0  S0M1PSDW        node_B_1-new(1574774970)  node_B_1-new(1574774970)
*>

  6. Display the aggregate status:

    aggr status

    *> aggr status
           Aggr            State       Status           Options
aggr0_node_b_1-root        online      raid_dp, aggr    root, nosnap=on,
                           mirrored                     mirror_resync_priority=high(fixed)
                           fast zeroed
                           64-bit

  7. Repeat the above steps on the partner node (node_B_2-new).

What's next?

Boot the new controllers and restore LIF configuration.