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| author | Don Brace <don.brace@microsemi.com> | 2016-07-01 13:37:31 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-10-28 03:01:33 -0400 |
| commit | 652a174a7d14e5334d2a3f5aa9be9ba52d293bc2 (patch) | |
| tree | aad43a54a6281eaec0569da8550b164e88e0399f /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | 9814eb75495bcd2fd2fc234bd474f0c395407c4c (diff) | |
hpsa: correct skipping masked peripherals
commit 64ce60cab24603ac0fcd59c9fbc3be78f4c4d229 upstream.
The SA controller spins down RAID drive spares.
A REGNEWD event causes an inquiry to be sent to all physical
drives. This causes the SA controller to spin up the spare.
The controller suspends all I/O to a logical volume until
the spare is spun up. The spin-up can take over 50 seconds.
This can result in one or both of the following:
- SML sends down aborts and resets to the logical volume
and can cause the logical volume to be off-lined.
- a negative impact on the logical volume's I/O performance
each time a REGNEWD is triggered.
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Juerg Haefliger <juerg.haefliger@hpe.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions