ARCMSR(4) | Device Drivers Manual | ARCMSR(4)

# NAME

`arcmsr` —
Areca 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:

- ARC-1110 PCI-X 4 Port SATA RAID Controller
- ARC-1110ML PCI-X 4 Port SATA RAID Controller
- ARC-1120 PCI-X 8 Port SATA RAID Controller
- ARC-1120ML PCI-X 8 Port SATA RAID Controller
- ARC-1130 PCI-X 12 Port SATA RAID Controller
- ARC-1130ML PCI-X 12 Port SATA RAID Controller
- ARC-1160 PCI-X 16 Port SATA RAID Controller
- ARC-1160ML PCI-X 16 Port SATA RAID Controller
- ARC-1170 PCI-X 24 Port SATA RAID Controller
- ARC-1200 Rev A PCI Express 2 Port SATA RAID Controller
- ARC-1202 PCI Express 2 Port SATA RAID Controller
- ARC-1210 PCI Express 4 Port SATA RAID Controller
- ARC-1220 PCI Express 8 Port SATA RAID Controller
- ARC-1230 PCI Express 12 Port SATA RAID Controller
- ARC-1230ML PCI Express 12 Port SATA RAID Controller
- ARC-1231ML PCI Express 12 Port SATA RAID Controller
- ARC-1260 PCI Express 16 Port SATA RAID Controller
- ARC-1260ML PCI Express 16 Port SATA RAID Controller
- ARC-1261ML PCI Express 16 Port SATA RAID Controller
- ARC-1280 PCI Express 24 Port SATA RAID Controller
- ARC-1280ML PCI Express 24 Port SATA RAID Controller
- ARC-1680 PCI Express 8 Port SAS RAID Controller
- ARC-1680LP PCI Express 8 Port SAS RAID Controller
- ARC-1680i PCI Express 8 Port SAS RAID Controller
- ARC-1680x PCI Express 8 Port SAS RAID Controller
- ARC-1681 PCI-X 8 Port SAS RAID Controller

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 9.0