FreeBSD 7.0 manual page repository

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dpt - DPT RAID Controller SCSI driver



      dpt - DPT RAID Controller SCSI driver


      To compile this driver into the kernel, place the following lines in your
      kernel configuration file:
            device scbus
            device dpt
            For one or more EISA cards:
            device eisa
            For one or more ISA cards:
            device isa
            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):


      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.


      The dpt driver provides support for the following RAID adapters:
            DPT Smart Cache Plus
            Smart Cache II (PM2?2?, PM2022 [EISA], PM2024/PM2124 [PCI]) (Gen2)
            Smart RAID II (PM3?2?, PM3021, PM3222)
            Smart Cache III (PM2?3?)
            Smart RAID III (PM3?3?, PM3332 [EISA], PM3334UW [PCI]) (Gen3)
            Smart Cache IV (PM2?4?, PM2042 [EISA], PM2044/PM2144 [PCI]) (Gen4)
            Smart RAID IV
      asr(4), cd(4), ch(4), da(4), sa(4), scsi(4)


      The dpt driver first appeared in FreeBSD 2.2.6.


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


Based on BSD UNIX
FreeBSD is an advanced operating system for x86 compatible (including Pentium and Athlon), amd64 compatible (including Opteron, Athlon64, and EM64T), UltraSPARC, IA-64, PC-98 and ARM architectures. It is derived from BSD, the version of UNIX developed at the University of California, Berkeley. It is developed and maintained by a large team of individuals. Additional platforms are in various stages of development.