IBM Storwize V7000 Unified Problem Determination Manual page 286

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Run the recovery from any node canisters in the system; the node canisters must
not have participated in any other system.
Note: Each individual stage of the recovery procedure might take significant time
to complete, dependant upon the specific configuration.
Before performing this procedure, read the recover system procedure introductory
information; see "Recover system procedure" on page 257.
Procedure
1. Point your browser to the service IP address of one of the node canisters.
2. Log on to the service assistant.
3. Check that all node canisters that were members of the system are online and
4. Select Recover System from the navigation.
5. Follow the online instructions to complete the recovery procedure.
Results
Verify the environment is operational by performing the checks provided in "What
to check after running the system recovery" on page 263.
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Storwize V7000 Unified: Problem Determination Guide Version
The volumes are back online. Use the final checks to get your environment
operational again.
T3 recovery completed with errors
T3 recovery completed with errors: One or more of the volumes are offline
because there was fast write data in the cache. To bring the volumes online, see
"Recovering from offline VDisks using the CLI" on page 263 for details.
T3 failed
Call IBM Support. Do not attempt any further action.
If the IP address is unknown or has not been configured, assign an IP address
using the initialization tool; see "Procedure: Changing the service IP address of
a node canister" on page 220.
have candidate status.
If any nodes display error code 550 or 578, remove their system data to place
them into candidate status; see "Procedure: Removing system data from a node
canister" on page 219.
a. Verify the date and time of the last quorum time. The time stamp must be
less than 30 minutes before the failure. The time stamp format is
YYYYMMDD hh:mm, where YYYY is the year, MM is the month, DD is the
day, hh is the hour, and mm is the minute.
Attention: If the time stamp is not less than 30 minutes before the failure, call
IBM Support.
a. Verify the date and time of the last backup date. The time stamp must be
less than 24 hours before the failure. The time stamp format is YYYYMMDD
hh:mm, where YYYY is the year, MM is the month, DD is the day, hh is the
hour, and mm is the minute.
Attention: If the time stamp is not less than 24 hours before the failure, call
IBM Support.
Changes made after the time of this backup date might not be restored.