GDT(4)                    OpenBSD Programmer's Manual                   GDT(4)

NAME
     gdt - ICP-Vortex GDT RAID driver

SYNOPSIS
     gdt* at pci? dev ? function ?
     scsibus* at gdt?

DESCRIPTION
     The gdt driver provides support for the following adapters:

     GDT60x0, GDT6000B, GDT6x10, GDT6x20, GDT6530, GDT6550, GDT6x17, GDT6x27,
     GDT6537, GDT6557, GDT6x15, GDT6x25, GDT6535, GDT6555, GDT6x17RP,
     GDT6x27RP, GDT6537RP, GDT6557RP, GDT6x11RP, GDT6x21RP, GDT6x17RD,
     GDT6x27RD, GDT6537RD, GDT6557RD, GDT6x11RD, GDT6x21RD, GDT6x18RD,
     GDT6x28RD, GDT6x38RD, GDT6x58RD, GDT6518RS, GDT7x18RN, GDT7x28RN,
     GDT7x38RN, GDT7x58RN, GDT6x19RD, GDT6x29RD, GDT7x19RN, GDT7x29RN.

     Although only the GDT6x27RP and the GDT6518RS has been tested by the au-
     thor, the interface the driver sees is uniform over all the models and
     should therefore work just fine.

     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.

DIAGNOSTICS
     pci_mem_find: expected mem type 00000000, found 00000002
       This message occurs during autoconfiguration if jumper J4 is set to map
       the controller memory below 1MB in physical memory.  The driver primar-
       ily wants this jumper to be set the other way round, but it will work
       with it in any setting.  If the diagnostic is considered a nuisance,
       alter jumper J4's setting.

SEE ALSO
     intro(4), scsi(4), sd(4)

AUTHORS
     The gdt driver was written by Niklas Hallqvist <niklas@openbsd.org>, in-
     spired by the Linux driver by
     Achim Luebner <achim@vortex.de>.

HISTORY
     The gdt driver first appeared in OpenBSD 2.7.

BUGS
     An ISA & EISA front-end is needed.

     The driver does not yet support transparent raw SCSI mode.

     It would be nice to configure the RAID units after boot but the informa-
     tion on how to do that is not public.

OpenBSD 2.9                    February 17, 2000                             1
