| Commit message (Collapse) | Author | Age | Files | Lines |
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on per-device basis.
- While adding support for per-device sysctls, merge from graid branch
support for ADA_TEST_FAILURE kernel option, which opens few more sysctl,
allowing to simulate read and write errors for testing purposes.
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Add kern.cam.ada.write_cache sysctl/tunable to control it alike hw.ata.wc.
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MFC after: 3 days
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Reported by: yongari
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kern.cam.ada.spindown_shutdown sysctl.
MFC after: 3 weeks
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existing code caused problems with some SCSI controllers.
A new sysctl kern.cam.ada.spindown_shutdown has been added that controls
whether or not to spin-down disks when shutting down.
Spinning down the disks unloads/parks the heads - this is
much better than removing power when the disk is still
spinning because otherwise an Emergency Unload occurs which may cause damage
to the actuator.
PR: kern/140752
Submitted by: olli
Reviewed by: arundel
Discussed with: mav
MFC after: 2 weeks
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MFC after: 3 days
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