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NAME    [Toc]    [Back]

     cac - Compaq Smart ARRAY RAID controllers

SYNOPSIS    [Toc]    [Back]

     cac* at pci? dev ? function ?
     cac* at eisa? slot ?
     scsibus* at cac?

DESCRIPTION    [Toc]    [Back]

     The cac driver provides support for the following RAID  controllers:
     Compaq  Integrated  Array,  Compaq  IAES, Compaq IDA, Compaq
IDA-2, Compaq
     RAID LC2, Compaq Smart Array 221, Compaq Smart Array 3100ES,
Compaq Smart
     Array  3200,  Compaq  Smart  Array  4200, Compaq Smart Array
4250ES, Compaq
     Smart Array 431,  Compaq  SMART,  Compaq  SMART-2/E,  Compaq
SMART-2/P, Compaq
     SMART-2DH, Compaq SMART-2SL.

     All  the  RAID  set  volume  management is done via the card

     Although the controllers are  actual  RAID  controllers  the
driver makes
     them  look  just like SCSI controllers.  All RAID configuration is done
     through the controllers' BIOSes.

SEE ALSO    [Toc]    [Back]

     eisa(4), intro(4), pci(4), scsi(4), sd(4)

HISTORY    [Toc]    [Back]

     The cac driver first appeared in OpenBSD 2.9.

AUTHORS    [Toc]    [Back]

     The cac driver  was  written  by  Michael  Shalayeff  <mickey@openbsd.org>, inspired
 by the NetBSD driver by
     Andrew Doran <ad@netbsd.org>.

BUGS    [Toc]    [Back]

     The  card provides a mechanism to receive asynchronous notifications about
     RAID set status change and so forth, unfortunately this  information is
     not public.

     Only a few PCI cards were tested, but others should work.

OpenBSD      3.6                        December     17,     2000
[ Back ]
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