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ARC(4) Device Drivers Manual ARC(4)

arcAreca Technology Corporation SAS/SATA RAID controller

arc* at pci?

The arc driver provides support for the PCI-X and PCI Express RAID controllers from Areca Technology Corporation:

These controllers can support RAID levels 0, 1, 1E, 3, 5, 6, and JBOD.

arc supports alarm control and monitoring of volumes configured on the controllers via the bio(4) interface and the bioctl(8) utility.

bio(4), intro(4), pci(4), scsi(4), bioctl(8)

The arc driver first appeared in OpenBSD 4.0.

The arc driver was written by David Gwynne <>.

January 24, 2014 OpenBSD-6.3