Attention:
This service action has serious implications if not performed properly.
If at any time during the procedure, you encounter an error that is not covered by
this procedure, stop and call IBM Support.
Note:
Your web browser must not block pop-up windows; otherwise, progress
windows cannot open.
You might see any one of the following categories of messages:
v
T3 successful. The volumes are back online. Use the final checks to get your
environment operational again.
v
T3 incomplete. One or more of the volumes is offline because there was fast
write data in the cache. Further actions are required to bring the volumes online
again. See “Recovering from offline VDisks using the CLI” on page 70 for
details.
v
T3 failed. Call IBM Support. Do not attempt any further action.
The recovery can be run 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. The time to complete depends on your specific configuration.
Before performing this task, ensure that you have read the introductory
information in the overall recover system procedure.
1.
Point your browser to the service IP address of one of the node canisters.
If you do not know the IP address or if it has not been configured, you must
assign an IP address using the initialization tool.
2.
Log on to the service assistant.
3.
Select
Recover System
from the navigation.
4.
Follow the online instructions to complete the recovery procedure.
Verify the date and time of the last quorum time. The time stamp must be less
than 10 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 10 minutes before the failure, call
IBM Support.
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.
After the recovery completes successfully, perform the checks to get your
environment operational.
If any errors are logged in the error log after the system recovery procedure
completes, use the fix procedures to resolve these errors, especially the errors
related to offline arrays.
If the recovery completes with offline volumes, go to “Recovering from offline
VDisks using the CLI” on page 70.
Chapter 7. Recovery procedures
69
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