asr -- driver for Adaptec I2O based SCSI/ATA host bus adapters
device asr
The Adaptec asr driver provides access to disks and disk arrays controlled
by I2O based host bus adapters and SmartRAID SCSI RAID adapters
through the standard SCSI disk da(4) interface. The adapters currently
supported include the following RAID adapters:
Adaptec Zero-Channel SCSI RAID 2000S & 2005S
Adaptec SCSI RAID 2100S (2110S)
Adaptec ATA-100 RAID 2400A
Adaptec SCSI RAID 3200S (3210S)
Adaptec SCSI RAID 3400S (3410S)
Adaptec SmartRAID PM1554
Adaptec SmartRAID PM2554
Adaptec SmartRAID PM2564
Adaptec SmartRAID PM2664
Adaptec SmartRAID PM2754
Adaptec SmartRAID PM2865
Adaptec SmartRAID PM3754
Adaptec SmartRAID PM3755U2B / SmartRAID V Millennium
Adaptec SmartRAID PM3757
DEC KZPCC-AC (LVD 1-ch, 4MB or 16MB cache), DEC KZPCC-CE (LVD 3-ch, 64MB
cache), DEC KZPCC-XC (LVD 1-ch, 16MB cache), DEC KZPCC-XE (LVD 3-ch, 64MB
cache) -- rebadged SmartRAID V Millennium
Some of the adapters provide 64 bit PCI, Compact PCI, ACPI and up to four
channels of Ultra 160 SCSI, or two channels of 1GB Fibre. All support
RAID-0, RAID-1, RAID-10, RAID-5 and RAID-50 arrays. All SCSI target
types are supported. For the ATA based controllers, one IDE drive per
channel is supported. Hot-swapping of IDE drives is not supported at
this time.
The PCI adapters automatically configure using the configuration mechanism
of the bus they are on. With PCI adapters the IRQ sometimes has to
be assigned from a BIOS configuration menu (some BIOS's do this automatically).
All host bus adapters must be configured before they can be used with any
operating system. Please contact Adaptec directly to obtain the latest
information on configuration utilities for the adapters. Currently there
are both a GUI Motif based configuration utility and a CLI based configuration
utility available from the Adaptec Web site. Note that in the
absence of a native FreeBSD version of the configuration utilities does
not mean one cannot configure the devices via the BIOS based configuration
tool Storage Manager on ROM (SMOR).
/dev/asr* Adaptec SCSI RAID control nodes
The ATA based controllers present their devices as SCSI-like devices via
CAM. For IDE drives attached to these cards, a subset of standard SCSI
commands and mode pages are understood via translation performed in the
card's firmware.
da(4)
The asr (Adaptec SCSI RAID) driver first appeared as the dpti2o driver
under BSDi BSD/OS 3.2, then under FreeBSD 2.2.8 and was ported over to
the CAM layer represented in 4.0.
The asr driver was kindly donated by Adaptec and is maintained by Mark
Salyzyn <mark_salyzyn@adaptec.com>. This manual page was written by Mark
Salyzyn and fixed up by Jeroen Ruigrok van der Werven
<asmodai@FreeBSD.org>.
FreeBSD 5.2.1 October 27, 2000 FreeBSD 5.2.1 [ Back ] |