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* - Add kern.cam.ada.X.write_cache tunables/sysctls to control write cachingmav2011-04-081-7/+11
| | | | | | | 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.
* Fix spelling.mav2011-04-071-1/+1
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* Make ada(4) driver to control device write cache, same as ata(4) does.mav2011-04-071-1/+6
| | | | Add kern.cam.ada.write_cache sysctl/tunable to control it alike hw.ata.wc.
* Bump .Dd due to additions in r214279.brucec2010-11-111-1/+1
| | | | MFC after: 3 days
* Fix formatting.brucec2010-10-261-1/+2
| | | | Reported by: yongari
* Add information about the values and default setting of thebrucec2010-10-261-0/+1
| | | | | | kern.cam.ada.spindown_shutdown sysctl. MFC after: 3 weeks
* Mostly revert r203420, and add similar functionality into ada(4) since thebrucec2010-10-241-0/+3
| | | | | | | | | | | | | | | | | 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
* Add links to cam(4).mav2010-03-041-0/+1
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* Grammar and mdoc improvements.brueffer2009-11-241-13/+13
| | | | MFC after: 3 days
* Add ada(4) man page.mav2009-11-191-0/+138
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