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CISS(4) Device Drivers Manual CISS(4)

ciss
Compaq Smart ARRAY 5/6 SAS/SATA/SCSI RAID controller

ciss* at pci?

The ciss driver provides support for the Compaq Smart ARRAY 5th and 6th family of RAID controllers, including:
These controllers support RAID 0, RAID 1, RAID 5, JBOD, and superpositions of those configurations.
Although the controllers are actual RAID controllers, the driver makes them look just like SCSI controllers. All RAID configuration is done through the controllers' BIOSes.
Monitoring status for the volume and drives in it is done through the bioctl(8) utility; the current status is provided by the sysctl(8) variable hw.sensors.

bio(4), intro(4), pci(4), scsi(4), sd(4), bioctl(8), sensorsd(8), sysctl(8)

The ciss driver first appeared in OpenBSD 3.8.

The ciss driver was written by Michael Shalayeff <mickey@openbsd.org>.

For purposes of status monitoring, the current code only supports one logical volume per controller.
September 13, 2014 OpenBSD-5.7