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ASR(4)			 BSD Kernel Interfaces Manual			ASR(4)

     asr -- driver for Adaptec I2O based SCSI/ATA host bus adapters

     device asr

     The Adaptec asr driver provides access to disks and disk arrays con-
     trolled by	I2O based host bus adapters and	SmartRAID SCSI RAID adapters
     through the standard SCSI disk da(4) interface.

     The supported adapters provide 64 bit PCI,	Compact	PCI, Zero Channel PCI,
     and up to four channels of	Ultra2,	Ultra 160, or Ultra320 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.

     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	Motif based GUI	configuration utility and a CLI	based configu-
     ration utility available from the Adaptec Web site.  The cards and	arrays
     can also be configured via	the BIOS based configuration tool (SMOR).

     The adapters currently supported by the asr driver	include	the following:

     o	 Adaptec Zero-Channel SCSI RAID	2000S, 2005S, 2010S, 2015S
     o	 Adaptec SCSI RAID 2100S, 2110S
     o	 Adaptec ATA-100 RAID 2400A
     o	 Adaptec SCSI RAID 3200S, 3210S
     o	 Adaptec SCSI RAID 3400S, 3410S
     o	 Adaptec SmartRAID PM1554
     o	 Adaptec SmartRAID PM1564
     o	 Adaptec SmartRAID PM2554
     o	 Adaptec SmartRAID PM2564
     o	 Adaptec SmartRAID PM2664
     o	 Adaptec SmartRAID PM2754
     o	 Adaptec SmartRAID PM2865
     o	 Adaptec SmartRAID PM3754
     o	 Adaptec SmartRAID PM3755U2B / SmartRAID V Millennium
     o	 Adaptec SmartRAID PM3757
     o	 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

     /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.


     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 <>.  This manual page was written by Mark
     Salyzyn and fixed up by Jeroen Ruigrok van	der Werven

BSD				 July 14, 2004				   BSD


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