ARCMSR(4) Kernel Interfaces Manual ARCMSR(4)

NAME

arcmsrAreca Technology Corporation SATA/SAS RAID controller

SYNOPSIS

arcmsr* at pci? dev ? function ?

DESCRIPTION

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

These controllers support RAID levels 0, 1, 1E, 3, 5, 6, and JBOD using either SAS or SATA II drives.

arcmsr supports management and monitoring of the controller through the bioctl(8) and envstat(8) commands.

Please note, however, that to use some features that require special privileges, such as creating/removing hot-spares, pass-through disks or RAID volumes will require to have the password disabled in the firmware; otherwise a Permission denied error will be reported by bioctl(8).

When a RAID 1 or 1+0 volume is created, either through the bioctl(8) command or controller's firmware, the volume won't be accessible until the initialization is done. A way to get access to the sd(4) device that corresponds to that volume without rebooting, is to issue the following command (once the initialization is finished):

$ scsictl scsibus0 scan any any

The arcmsr driver will also report to the kernel log buffer any error that might appear when handling firmware commands, such as used by the bioctl(8) command.

EVENTS

The arcmsr driver is able to send events to powerd(8) if a volume or any drive connected to the volume is not online. The state-changed event will be sent to the /etc/powerd/scripts/sensor_drive script when such condition happens.

SEE ALSO

intro(4), pci(4), scsi(4), sd(4), bioctl(8), envstat(8), powerd(8), scsictl(8)

HISTORY

The arcmsr driver first appeared in NetBSD 5.0.

AUTHORS

The arcmsr driver was originally written for OpenBSD by David Gwynne. It was ported to NetBSD and extended by Juan Romero Pardines.
March 3, 2008 NetBSD 6.1