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

NAME
     gdt - ICP-Vortex and Intel GDT SATA/SCSI RAID controller

SYNOPSIS
     gdt* at pci?
     scsibus* at gdt?

DESCRIPTION
     The gdt driver provides support for ICP-Vortex adapters such as:

     GDT4x13RZ, GDT4x23RZ, GDT6000/6020/6050, GDT6000B/6010, GDT6110/6510,
     GDT6120/6520, GDT6513RS, GDT6518RS, GDT6523RS, GDT6530, GDT6535, GDT6537,
     GDT6537RP, GDT6537RP1, GDT6537RP2, GDT6550, GDT6555, GDT6557, GDT6557RP,
     GDT6557RP1, GDT6557RP2, GDT6x11RP, GDT6x11RP1, GDT6x11RP2, GDT6x15,
     GDT6x17, GDT6x17RP, GDT6x17RP1, GDT6x17RP2, GDT6x18RD, GDT6x19RD,
     GDT6x21RP, GDT6x21RP1, GDT6x21RP2, GDT6x25, GDT6x27, GDT6x27RP,
     GDT6x27RP1, GDT6x27RP2, GDT6x28RD, GDT6x28RS, GDT6x29RD, GDT6x33RS,
     GDT6x38RD, GDT6x38RS, GDT6x43RS, GDT6x53RS, GDT6x58RD, GDT6x58RS,
     GDT6x63RS, GDT7x13RN, GDT7x18RN, GDT7x19RN, GDT7x23RN, GDT7x28RN,
     GDT7x29RN, GDT7x38RN, GDT7x43RN, GDT7x53RN, GDT7x58RN, GDT7x63RN,
     GDT8x00RZ, GDT8x13RZ, GDT8x14RZ, GDT8x22RZ, GDT8x23RZ, GDT8x23RZ,
     GDT8x24RZ, GDT8x33RZ, GDT8x43RZ, GDT8x46RZ, GDT8x53RZ, GDT8x63RZ, and
     GDT8x86RZ.

     As well as Intel adapters such as:

     SRCU42L, SRCU32, SRCZCR, and SRCS14L.

     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 primarily 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), pci(4), scsi(4), sd(4)

HISTORY
     The gdt driver first appeared in OpenBSD 2.7.

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

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
     information on how to do that is not public.

OpenBSD 4.9			 May 31, 2007			   OpenBSD 4.9

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