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 all currently known adapters:

     GDT6000/6020/6050, GDT6000B/6010, GDT6110/6510, GDT6120/6520, GDT6530,
     GDT6550, GDT6117/6517, GDT6127/6527, GDT6537, GDT6557/6557-ECC,
     GDT6115/6515, GDT6125/6525, GDT6535, GDT6555/6555-ECC, GDT6[15]17RP,
     GDT6[15]27RP, GDT6537RP, GDT6557RP, GDT6[15]11RP, GDT6[15]21RP,
     GDT6[15]17RD, GDT6[5]127RD, GDT6537RD, GDT6557RD, GDT6[15]11RD,
     GDT6[15]21RD, GDT6[156]18RD, GDT6[156]28RD, GDT6[56]38RD, GDT6[56]58RD,
     GDT6513RS, GDT6523RS, GDT6518RS, GDT6x28RS, GDT6x38RS, GDT6x58RS,
     GDT6x33RS, GDT6x43RS, GDT6x53RS, GDT6x63RS, GDT7x13RN, GDT7x23RN,
     GDT7[156]18RN, GDT7[156]28RN, GDT7[56]38RN, GDT7[56]58RN, GDT7[56]43RN,
     GDT7x53RN, GDT7x63RN, GDT4x13RZ, GDT4x23RZ, GDT8x13RZ, GDT8x23RZ,
     GDT8x33RZ, GDT8x43RZ, GDT8x53RZ, GDT8x63RZ, GDT6[56]19RD, GDT6[56]29RD,
     GDT7[56]19RN, and GDT7[56]29RN.

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 3.0                    February 17, 2000                             1
