About this task
F
or single node systems and HA pairs that have already failed over to the standby node, skip these steps.
Steps
1. Enter the management IP address of the node containing the failed component into a web browser, and login as sysadmin.
2. Verify the node role and number in the upper right corner of the screen.
If the node is the standby node, skip the next step.
3
. If the node is the active node, run the ha failover command to initiate a failover.
The failover process takes 10 minutes to complete.
● After a failover, jobs using the following protocols that were in progress at the time of the failover require a manual
restart:
○ CIFS
○ NDMP
○ VTL
● After a failover, jobs that were in progress at the time of the failover using the following protocols will resume
automatically after the failover:
○ DD Boost over FC
○ DD Boost over IP
○ NFS
○ Replication
○ Data movement to Cloud Tier.
4. Run the ha offline command on the node where the maintenance activity will be performed to prevent disruptions to the
active node during the maintenance activity.
5. Run the ha status command to verify the active node is online and the standby node is offline.
HA System Name: datadomain-ha3a.emc.com
H
A System Status: highly available
Node Name Node ID Role HA State
-------------------------- --------- --------- --------
datadomain-ha3a-p0.emc.com 0 standby offline
datadomain-ha3a-p1.emc.com 1 active degraded
-------------------------- --------- --------- --------
16 FRU and Upgrade Overview
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