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| author | Don Brace <don.brace@microsemi.com> | 2016-07-01 21:37:31 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-07-15 22:40:39 +0300 |
| commit | 64ce60cab24603ac0fcd59c9fbc3be78f4c4d229 (patch) | |
| tree | c45c5bc174ed56461c455b22c90c0735068d321a /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | 094f71c70b5c25176709081cedda23228a0d82ab (diff) | |
| download | linux-64ce60cab24603ac0fcd59c9fbc3be78f4c4d229.tar.xz | |
hpsa: correct skipping masked peripherals
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>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions