Verifying networking and storage status for MetroCluster configurations
Before and after performing an update in a MetroCluster configuration, you should verify the status of the LIFs, aggregates, and volumes for each cluster.
- Verify the LIF status: network interface show
In normal operation, LIFs for source SVMs must have an admin status of up and be located on their home nodes. LIFs for destination SVMs are not required to be up or located on their home nodes. In switchover, all LIFs have an admin status of up, but they do not need to be located on their home nodes.
Example
TDC-DM7K::*> network interface show
Logical Status Network Current Current Is
Vserver Interface Admin/Oper Address/Mask Node Port Home
----------- ---------- ---------- ------------------ ------------- ------- ----
Cluster
TDC-7K-01_clus1
up/up 169.254.80.101/16 TDC-7K-01
e0a true
TDC-7K-01_clus2
up/up 169.254.163.69/16 TDC-7K-01
e0b true
TDC-7K-02_clus1
up/up 169.254.80.115/16 TDC-7K-02
e0a true
TDC-7K-02_clus2
up/up 169.254.178.186/16 TDC-7K-02
e0b true
TDC-DM7K
TDC-7K-01_mgmt1
up/up 10.241.68.78/24 TDC-7K-01
e0M true
TDC-7K-01_mgmt1_192
up/up 192.168.100.78/16 TDC-7K-01
e0M true
TDC-7K-02_mgmt1
up/up 10.241.68.79/24 TDC-7K-02
e0M true
TDC-7K-02_mgmt1_192
up/up 192.168.100.79/16 TDC-7K-02
e0M true
cluster_mgmt up/up 10.241.68.77/24 TDC-7K-01
e0M true
svm0
lif_fc_1_1 up/up 20:02:00:a0:98:db:e1:32
TDC-7K-01
0g true
lif_fc_1_2 up/up 20:03:00:a0:98:db:e1:32
TDC-7K-01
0h true
lif_fc_2_1 up/up 20:04:00:a0:98:db:e1:32
TDC-7K-02
0g true
lif_fc_2_2 up/up 20:05:00:a0:98:db:e1:32
TDC-7K-02
0h true
13 entries were displayed. - Verify the state of the aggregates: storage aggregate show -state !online This command displays any aggregates that are not online. In normal operation, all aggregates located at the local site must be online. However, if the MetroCluster configuration is in switchover, root aggregates at the disaster recovery site are permitted to be offline.
Example
This example shows a cluster in normal operation:TDC-DM7K::> storage aggregate show -state !online
There are no entries matching your query.Example
This example shows a cluster in switchover, in which the root aggregates at the disaster recovery site are offline:TDC-DM7K::> storage aggregate show -state !online
Aggregate Size Available Used% State #Vols Nodes RAID Status
--------- -------- --------- ----- ------- ------ ---------------- ------------
aggr0_b1
0B 0B 0% offline 0 cluster2-01 raid_dp,
mirror
degraded
aggr0_b2
0B 0B 0% offline 0 cluster2-02 raid_dp,
mirror
degraded
2 entries were displayed. - Verify the state of the volumes: volume show -state !online This command displays any volumes that are not online.
If the MetroCluster configuration is in normal operation (it is not in switchover state), the output should show all volumes owned by the cluster's secondary SVMs (those with the SVM name appended with "-mc").
Those volumes come online only in the event of a switchover.
Example
This example shows a cluster in normal operation, in which the volumes at the disaster recovery site are not online.TDC-DM7K::> volume show -state !online
(volume show)
Vserver Volume Aggregate State Type Size Available Used%
--------- ------------ ------------ ---------- ---- ---------- ---------- -----
vs2-mc vol1 aggr1_b1 - RW - - -
vs2-mc root_vs2 aggr0_b1 - RW - - -
vs2-mc vol2 aggr1_b1 - RW - - -
vs2-mc vol3 aggr1_b1 - RW - - -
vs2-mc vol4 aggr1_b1 - RW - - -
5 entries were displayed. - Verify that there are no inconsistent volumes: volume show -is-inconsistent true If any inconsistent volumes are returned, you must contact Lenovo Support before you precede with the upgrade.