Deleting failed plexes owned by the surviving site (MetroCluster IP configurations)
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After replacing hardware and assigning disks, you must delete failed remote plexes that are owned by the surviving site nodes but located at the disaster site.
These steps are performed on the surviving cluster.
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Identify the local aggregates:
storage aggregate show -is-home truecluster_B::> storage aggregate show -is-home true cluster_B Aggregates: Aggregate Size Available Used% State #Vols Nodes RAID Status --------- -------- --------- ----- ------- ------ ---------------- ------------ node_B_1_aggr0 1.49TB 74.12GB 95% online 1 node_B_1 raid4, mirror degraded node_B_2_aggr0 1.49TB 74.12GB 95% online 1 node_B_2 raid4, mirror degraded node_B_1_aggr1 2.99TB 2.88TB 3% online 15 node_B_1 raid_dp, mirror degraded node_B_1_aggr2 2.99TB 2.91TB 3% online 14 node_B_1 raid_tec, mirror degraded node_B_2_aggr1 2.95TB 2.80TB 5% online 37 node_B_2 raid_dp, mirror degraded node_B_2_aggr2 2.99TB 2.87TB 4% online 35 node_B_2 raid_tec, mirror degraded 6 entries were displayed. cluster_B::> -
Identify the failed remote plexes:
storage aggregate plex showThe following example calls out the plexes that are remote (not plex0) and have a status of "failed":
cluster_B::> storage aggregate plex show -fields aggregate,status,is-online,Plex,pool aggregate plex status is-online pool ------------ ----- ------------- --------- ---- node_B_1_aggr0 plex0 normal,active true 0 node_B_1_aggr0 plex4 failed,inactive false - <<<<---Plex at remote site node_B_2_aggr0 plex0 normal,active true 0 node_B_2_aggr0 plex4 failed,inactive false - <<<<---Plex at remote site node_B_1_aggr1 plex0 normal,active true 0 node_B_1_aggr1 plex4 failed,inactive false - <<<<---Plex at remote site node_B_1_aggr2 plex0 normal,active true 0 node_B_1_aggr2 plex1 failed,inactive false - <<<<---Plex at remote site node_B_2_aggr1 plex0 normal,active true 0 node_B_2_aggr1 plex4 failed,inactive false - <<<<---Plex at remote site node_B_2_aggr2 plex0 normal,active true 0 node_B_2_aggr2 plex1 failed,inactive false - <<<<---Plex at remote site node_A_1_aggr1 plex0 failed,inactive false - node_A_1_aggr1 plex4 normal,active true 1 node_A_1_aggr2 plex0 failed,inactive false - node_A_1_aggr2 plex1 normal,active true 1 node_A_2_aggr1 plex0 failed,inactive false - node_A_2_aggr1 plex4 normal,active true 1 node_A_2_aggr2 plex0 failed,inactive false - node_A_2_aggr2 plex1 normal,active true 1 20 entries were displayed. cluster_B::>
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Take offline each of the failed plexes, and then delete them:
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Take offline the failed plexes:
storage aggregate plex offline -aggregate aggregate-name -plex plex-idThe following example shows the aggregate "node_B_2_aggr1/plex1" being taken offline:
cluster_B::> storage aggregate plex offline -aggregate node_B_1_aggr0 -plex plex4 Plex offline successful on plex: node_B_1_aggr0/plex4
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Delete the failed plex:
storage aggregate plex delete -aggregate aggregate-name -plex plex-idYou can destroy the plex when prompted.
The following example shows the plex node_B_2_aggr1/plex1 being deleted.
cluster_B::> storage aggregate plex delete -aggregate node_B_1_aggr0 -plex plex4 Warning: Aggregate "node_B_1_aggr0" is being used for the local management root volume or HA partner management root volume, or has been marked as the aggregate to be used for the management root volume after a reboot operation. Deleting plex "plex4" for this aggregate could lead to unavailability of the root volume after a disaster recovery procedure. Use the "storage aggregate show -fields has-mroot,has-partner-mroot,root" command to view such aggregates. Warning: Deleting plex "plex4" of mirrored aggregate "node_B_1_aggr0" on node "node_B_1" in a MetroCluster configuration will disable its synchronous disaster recovery protection. Are you sure you want to destroy this plex? {y|n}: y [Job 633] Job succeeded: DONE cluster_B::>
You must repeat these steps for each of the failed plexes.
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Confirm that the plexes have been removed:
storage aggregate plex show -fields aggregate,status,is-online,plex,poolcluster_B::> storage aggregate plex show -fields aggregate,status,is-online,Plex,pool aggregate plex status is-online pool ------------ ----- ------------- --------- ---- node_B_1_aggr0 plex0 normal,active true 0 node_B_2_aggr0 plex0 normal,active true 0 node_B_1_aggr1 plex0 normal,active true 0 node_B_1_aggr2 plex0 normal,active true 0 node_B_2_aggr1 plex0 normal,active true 0 node_B_2_aggr2 plex0 normal,active true 0 node_A_1_aggr1 plex0 failed,inactive false - node_A_1_aggr1 plex4 normal,active true 1 node_A_1_aggr2 plex0 failed,inactive false - node_A_1_aggr2 plex1 normal,active true 1 node_A_2_aggr1 plex0 failed,inactive false - node_A_2_aggr1 plex4 normal,active true 1 node_A_2_aggr2 plex0 failed,inactive false - node_A_2_aggr2 plex1 normal,active true 1 14 entries were displayed. cluster_B::>
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Identify the switched-over aggregates:
storage aggregate show -is-home falseYou can also use the
storage aggregate plex show -fields aggregate,status,is-online,plex,poolcommand to identify plex 0 switched-over aggregates. They will have a status of "failed, inactive".The following commands show four switched-over aggregates:
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node_A_1_aggr1
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node_A_1_aggr2
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node_A_2_aggr1
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node_A_2_aggr2
cluster_B::> storage aggregate show -is-home false cluster_A Switched Over Aggregates: Aggregate Size Available Used% State #Vols Nodes RAID Status --------- -------- --------- ----- ------- ------ ---------------- ------------ node_A_1_aggr1 2.12TB 1.88TB 11% online 91 node_B_1 raid_dp, mirror degraded node_A_1_aggr2 2.89TB 2.64TB 9% online 90 node_B_1 raid_tec, mirror degraded node_A_2_aggr1 2.12TB 1.86TB 12% online 91 node_B_2 raid_dp, mirror degraded node_A_2_aggr2 2.89TB 2.64TB 9% online 90 node_B_2 raid_tec, mirror degraded 4 entries were displayed. cluster_B::> -
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Identify switched-over plexes:
storage aggregate plex show -fields aggregate,status,is-online,Plex,poolYou want to identify the plexes with a status of "failed, inactive".
The following commands show four switched-over aggregates:
cluster_B::> storage aggregate plex show -fields aggregate,status,is-online,Plex,pool aggregate plex status is-online pool ------------ ----- ------------- --------- ---- node_B_1_aggr0 plex0 normal,active true 0 node_B_2_aggr0 plex0 normal,active true 0 node_B_1_aggr1 plex0 normal,active true 0 node_B_1_aggr2 plex0 normal,active true 0 node_B_2_aggr1 plex0 normal,active true 0 node_B_2_aggr2 plex0 normal,active true 0 node_A_1_aggr1 plex0 failed,inactive false - <<<<-- Switched over aggr/Plex0 node_A_1_aggr1 plex4 normal,active true 1 node_A_1_aggr2 plex0 failed,inactive false - <<<<-- Switched over aggr/Plex0 node_A_1_aggr2 plex1 normal,active true 1 node_A_2_aggr1 plex0 failed,inactive false - <<<<-- Switched over aggr/Plex0 node_A_2_aggr1 plex4 normal,active true 1 node_A_2_aggr2 plex0 failed,inactive false - <<<<-- Switched over aggr/Plex0 node_A_2_aggr2 plex1 normal,active true 1 14 entries were displayed. cluster_B::>
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Delete the failed plex:
storage aggregate plex delete -aggregate node_A_1_aggr1 -plex plex0You can destroy the plex when prompted.
The following example shows the plex node_A_1_aggr1/plex0 being deleted:
cluster_B::> storage aggregate plex delete -aggregate node_A_1_aggr1 -plex plex0 Warning: Aggregate "node_A_1_aggr1" hosts MetroCluster metadata volume "MDV_CRS_e8457659b8a711e78b3b00a0988fe74b_A". Deleting plex "plex0" for this aggregate can lead to the failure of configuration replication across the two DR sites. Use the "volume show -vserver <admin-vserver> -volume MDV_CRS*" command to verify the location of such volumes. Warning: Deleting plex "plex0" of mirrored aggregate "node_A_1_aggr1" on node "node_A_1" in a MetroCluster configuration will disable its synchronous disaster recovery protection. Are you sure you want to destroy this plex? {y|n}: y [Job 639] Job succeeded: DONE cluster_B::>You must repeat these steps for each of the failed aggregates.
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Verify that there are no failed plexes remaining on the surviving site.
The following output shows that all plexes are normal, active, and online.
cluster_B::> storage aggregate plex show -fields aggregate,status,is-online,Plex,pool aggregate plex status is-online pool ------------ ----- ------------- --------- ---- node_B_1_aggr0 plex0 normal,active true 0 node_B_2_aggr0 plex0 normal,active true 0 node_B_1_aggr1 plex0 normal,active true 0 node_B_2_aggr2 plex0 normal,active true 0 node_B_1_aggr1 plex0 normal,active true 0 node_B_2_aggr2 plex0 normal,active true 0 node_A_1_aggr1 plex4 normal,active true 1 node_A_1_aggr2 plex1 normal,active true 1 node_A_2_aggr1 plex4 normal,active true 1 node_A_2_aggr2 plex1 normal,active true 1 10 entries were displayed. cluster_B::>