NAME

       dpt — DPT RAID Controller SCSI driver

SYNOPSIS

       To compile this driver into the kernel, place the following lines in your kernel configuration file:

             device scbus
             device dpt

             For one or more PCI cards:
             device pci

             To allow PCI adapters to use memory mapped I/O if enabled:
             options DPT_ALLOW_MEMIO

       Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

             dpt_load="YES"

DESCRIPTION

       The dpt driver supports DPT RAID SCSI controllers.

       SmartRAID  (PM3???)  are "Enterprise" class cards, and SmartCache (PM2???) cards are in the "Workstation"
       class.  The Gen 4 Smart Cache IV products were a re-issue of the Gen 3 utilizing upgraded (and cheaper to
       produce) silicon.  The PM3334 (Smart RAID III) was not revamped as there was no upgraded  silicon  (68040
       processor)  and  it  was using the best DPT made.  Note there has been customer confusion over the faster
       enterprise class card supported by this driver being an older generation.  The Gen5 cards  are  supported
       by the asr(4) driver.

HARDWARE

       The dpt driver provides support for the following RAID adapters:

       •   DPT Smart Cache Plus
       •   Smart Cache II (PM2?2?, PM2024/PM2124 [PCI]) (Gen2)
       •   Smart RAID II (PM3?2?, PM3021, PM3222)
       •   Smart Cache III (PM2?3?)
       •   Smart RAID III (PM3?3?, PM3334UW [PCI]) (Gen3)
       •   Smart Cache IV (PM2?4?, PM2044/PM2144 [PCI]) (Gen4)
       •   Smart RAID IV

SEE ALSO

       asr(4), cd(4), ch(4), da(4), sa(4), scsi(4)

HISTORY

       The dpt driver first appeared in FreeBSD 2.2.6.

AUTHORS

       The dpt driver was written by Simon Shapiro and ported to the CAM SCSI system by Justin T. Gibbs.

Debian                                          November 13, 2014                                         DPT(4)