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tz(7)
NAME
tz - SCSI magnetic tape interface
SYNOPSIS
AlphaServer 8200 and AlphaServer 8400 Qlogic ISP1020:
bus tlsb0 at nexus?
bus tiop0 at tlsb0 vector tioperror
bus isp0 at * vector ispintr
controller scsi0 at * vector scsiintr
controller scsi1 at * vector scsiintr
AlphaServer 8200 and AlphaServer 8400 DEC KZMSA:
bus tlsb0 at nexus?
bus tiop0 at tlsb0 vector tioperror
bus xmi0 at tiop? vector xmierror
bus xza0 at xmi?
controller scsi0 at * vector scsiintr
controller scsi1 at * vector scsiintr
DEC 7000/10000 DEC KZMSA:
bus lsb0 at nexus?
bus iop0 at lsb0 vector ioperror
bus xmi0 at iop0 vector xmierror
bus xza0 at xmi?
controller scsi0 at * vector scsiintr
controller scsi1 at * vector scsiintr
DEC 4000 DEC SIOP:
bus ibus0 at nexus?
bus lbus0 at ibus0
bus siop0 at lbus0 slot 0 vector siopcointr
controller scsi0 at * vector scsiintr
DEC 3000 NCR ASC:
bus tc0 at nexus?
bus tcds0 at * vector tcdsintr
controller scsi0 at * vector scsiintr
controller scsi1 at * vector scsiintr
DEC 3000 DEC KZTSA:
bus tc0 at nexus?
bus tza0 at * vector kztsaintr
controller scsi0 at * vector scsiintr
DEC PCI bus DEC KZPSA:
bus pci0 at *
bus pza0 at pci? vector pzaintr
controller scsi0 at * vector scsiintr
DEC PCI bus NCR 810:
bus pci0 at *
bus psiop at pci? vector psiopintr
controller scsi0 at * vector scsiintr
DEC PCI bus Qlogic ISP1020:
bus pci0 at *
bus isp0 at * vector ispintr
controller scsi0 at * vector scsiintr
DEC EISA bus Adaptec 1740:
bus eisa0 at * bus aha0 at * vector ahaintr
controller scsi0 at * vector scsiintr
DESCRIPTION
The Small Computer System Interface (SCSI) tape driver provides a standard
tape drive interface as described in mtio(7). This is the tape driver for
any Compaq SCSI tape device. Facilities are provided to allow the addition
of third-party SCSI tape drives to the system. Refer to the ddr_config(8)
and ddr.dbase(4) reference pages for instructions.
For reads from Beginning of Media (BOM), the density of the tape is
obtained from the drive. Autodensity selection is then used for all read
operations. This means that reads are performed in the density of the
tape.
For writes from BOM, the density, compression, and fixed/variable blocking
factor of the tape are set. The tape is written in the density,
compression, and fixed/variable blocking factor selected by the device
special file name such as tape?_d0 device special files in dev/tape. See
System Administration for more information on device special files. If the
tape is not at BOM, and is partly written, the written portion of the
tape determines the density, compression, and fixed/variable blocking
factors for the write.
Tape Media and Drive Compatibility Tables
The following table lists the tape compatibility for CompacTape media and
the TZ85, TZ86, TZ87, TZ88, TZ89, DLT4000, and DLT8000 tape drives:
_________________________________________________________________________
Media Type Drive Type
_________________________________________________________________________
CompacTapeI TZ30, TK50
CompacTapeII TZ30, TK50, TK70, TZ85, TZ86
CompacTapeIII TZ85, TZ86, TZ87, TZ88, TZ89, DLT4000, DLT8000
CompacTapeIIIXT TZ88, TZ89, DLT4000, DLT8000
CompacTapeIV TZ88, TZ89, DLT4000, DLT8000
_________________________________________________________________________
CompacTapeIII is also known as DLTtapeIII.
CompacTapeIIIXT is also known as DLTtapeIIIxT.
CompacTapeIV is also known as DLTtapeIV.
The following table lists the tape compatibility for the TLZ04, TLZ06,
TLZ07, TLZ09, TLZ10, SDT-7000, SDT-9000, and SDT-10000 tape drives:
__________________________________________________________
Media Type Drive Type
__________________________________________________________
DDS-1 (60m) TLZ04, TLZ06, TLZ07, TLZ09, TLZ10,
SDT-7000, SDT-9000, SDT-10000
DDS-1 (90m) TLZ06, TLZ07, TLZ09, TLZ10,
SDT-7000, SDT-9000, SDT-10000
DDS-2 (120m) TLZ07, TLZ09, TLZ10,
SDT-7000, SDT-9000, SDT-10000
DDS-3 (125m) TLZ10, SDT-9000, SDT-10000
DDS-4 (150m) SDT-10000
__________________________________________________________
The following table lists the tape compatibility for the TZS20, SDX-300C,
and SDX-500C tape drives:
_______________________________________________
Media Type Drive Type Supported
_______________________________________________
AIT 25 TZS20, SDX-300C, SDX-500C
AIT 35 SDX-300C, SDX-500C
AIT 50 SDX-500C
_______________________________________________
Device Special Files and Tape Density
Using a particular device special file with a certain tape format will
indicate what density code, compression, capacity and I/O is supported. It
is also possible for administrators to customize which device special file
names apply to what densities. Future extensions to device special files
may also increase the number of alternative files that can be used with a
particular device. The current range of possible device special files is:
tape?_d0 to tape?_d7, where ? is a decimal number representing the
identification number of the tape device. Normally, the _d1 suffix will
always indicate the highest density used with compression, while the _d2
suffix will indicate the highest density witout compression.
Note that the tape?_?? format device names correspond to the previous
device names as shown in the following table:
________________________________________________________________________
Previous Format in /dev New Formats in /dev/nrmt and /dev/rmt
________________________________________________________________________
rmt?a tape?_d3
rmt?l tape?_d0 (d0 always maps to the low density)
rmt?m tape?_d2
rmt?h tape?_d1 (d1 always maps to the high density)
________________________________________________________________________
Two new device special file names now exist which will allow the user to
select the highest density of the tape drive. These two device special
filenames can be used for all devices which support auto-density select,
even if there are no entries in the ddr.dbase file for the tape drive.
tape? By selecting this device special filename without any d0-d7 reference
you will be selecting a density code of 00H, which will instruct the
tape device to use the default density available for the tape type in
the drive. Compression will be disabled for all I/O operations.
tape?c
By selecting this device special filename without any d0-d7 reference
you will be selecting a density code of 00H, which will instruct the
tape device to use the default density available for the tape type in
the drive. Compression will be enabled for all I/O operations. It is
important that you ensure the device supports compression before you
use this device special filename.
If you have a requirement to support previous device names (such as local
shell scripts or utilities), consult the System Administration guide for
information on creating and using the rmt?? format for device special
files.
As it is possible to customize the device names, to determine how the tape
device special file names correspond to the supported formats for a
particular device, you can consult the /etc/ddr.dbase file and search for
the device name. (See the reference page ddr.dbase(4) for information on
this file) For example, the following entry appears for the TZS20 tape
device:
SCSIDEVICE
#
# Matches TZS20, TZS2
#
Type = tape
Name = "DEC" "TZS2"
#
PARAMETERS:
TypeSubClass = 8mm, loader
TagQueueDepth = 0
MaxTransferSize = 0x0ffffff # (16MB - 1)
ReadyTimeSeconds = 90 # seconds
DENSITY:
#
DensityNumber = 0,3,4,5,6,7
DensityCode = default
CompressionCode = 0x0
Buffered = 0x1
DENSITY:
#
DensityNumber = 1,2
DensityCode = default
CompressionCode = 0x1
Buffered = 0x1
From the DENSITY section of the entry you can determine which device
special files apply:
DensityNumber = 0,3,4,5,6,7
tape?_d0, or any device name with the suffix: _d3, _d4, _d5, _d6, and
_d7. In this case, compression is set to Off (0x0).
DensityNumber = 1,2
tape?_d1, or tape?_d2. In this case, compression is set to On (0x1)
Tape Format Reference
The following tables provide information for various tape drives. All of
these tape drives support variable block size. Note that in the capacity
column, a number followed by an asterisk (*) assumes a 2:1 compression
ratio. The actual compression ratio may vary depending on the type of data
being compressed. Note the following abbreviations that apply to these
tables:
CT ? CompacTape, such as CompacTapeIII
rw Read and write I/O is supported
ro Read only I/O is supported
TZ85 Tape Drive Supported Formats
____________________________________________________________________________
Format Device Special Density Compression Capacity Cartridge I/O
File Name Code (GB)
____________________________________________________________________________
TK50 tape?_d0-7 00h N/A 95M CT II ro
TZ30 tape?_d0-7 00h N/A 95M CT II ro
TZ85 tape?_d0-7 17h N/A 2.6 CT III rw
TZ86 Tape Drive Supported Formats
____________________________________________________________________________
Format Device Special Density Compression Capacity Cartridge I/O
File Name Code (GB)
____________________________________________________________________________
TK50 tape?_d0-7 00h N/A 95M CT II ro
TZ30 tape?_d0-7 00h N/A 95M CT II ro
TZ85 tape?_d0,3 17h N/A 2.6 CT III rw
TZ86 tape?_d1,2,4-7 18h N/A 6.0 CT III rw
____________________________________________________________________________
TZ87 Tape Drive Supported Formats
____________________________________________________________________________
Format Device Special Density Compression Capacity Cartridge I/O
File Name Code (GB)
____________________________________________________________________________
TZ85 tape?_d3 17h N/A 2.6 CT III rw
TZ86 tape?_d0 18h N/A 6.0 CT III rw
TZ87 tape?_d2, 4-7 00h off 10.0 CT III rw
TZ87 tape?_d1 00h on 20.0 * CT III rw
____________________________________________________________________________
TZ88 / DLT4000 Tape Drive Supported Formats
The DLT4000 is functionally equivalent to the TZ88 tape drive and the
DLT4000 tape format is identical to the TZ88 tape format.
_____________________________________________________________________________
Format Device Special Density Compression Capacity Cartridge I/O
File Name Code (GB)
_____________________________________________________________________________
TZ85 tape?_d3 17h N/A 2.6 CT III rw
TZ86 tape?_d0 18h N/A 6.0 CT III rw
TZ87 tape?_d2, 6-7 00h off 10.0 CT III rw
TZ87 tape?_d1 00h on 20.0 * CT III rw
TZ87 tape?_d4 19h off 15.0 CT III rw
TZ87 tape?_d5 19h on 30.0 * CT III rw
TZ88 tape?_d4, 5 N/A N/A 15/30 CT III XT ro
TZ88 tape?_d2, 6-7 00h off 15.0 CT III XT rw
TZ88 tape?_d1 00h on 30.0 * CT III XT rw
DLT4000 tape?_d4, 5 N/A N/A 15/30 CT III XT ro
DLT4000 tape?_d2, 6-7 00h off 15.0 CT III XT rw
DLT4000 tape?_d1 00h on 30.0 * CT III XT rw
TZ88 tape?_d4, 5 N/A N/A 20/40 CT IV ro
TZ88 tape?_d2, 6-7 00h off 20.0 CT IV rw
TZ88 tape?_d1 00h on 40.0 * CT IV rw
DLT4000 tape?_d4, 5 N/A N/A 20/40 CT IV ro
DLT4000 tape?_d2, 6-7 00h off 20.0 CT IV rw
DLT4000 tape?_d1 00h on 40.0 * CT IV rw
_____________________________________________________________________________
TZ89 Tape Drive Supported Formats
_____________________________________________________________________________
Format Device Special Density Compression Capacity Cartridge I/O
File Name Code (GB)
_____________________________________________________________________________
TZ85 tape?_d0,3 N/A N/A 2.6 CT III ro
TZ85 tape?_d4 17h N/A 2.6 CT III rw
TZ86 tape?_d0,3 N/A N/A 6.0 CT III ro
TZ86 tape?_d5 18h N/A 6.0 CT III rw
TZ87 tape?_d0,3 N/A N/A 10/20 CT III ro
TZ87 tape?_d2,6-7 00h off 10.0 CT III rw
TZ87 tape?_d1 00h on 20.0 * CT III rw
TZ88 tape?_d0,3-5 N/A N/A 15/30 CT IIIXT ro
DLT4000 tape?_d0,3-5 N/A N/A 15/30 CT IIIXT ro
TZ88 tape?_d2,6-7 00h off 15.0 CT IIIXT rw
TZ88 tape?_d1 00h on 30.0 * CT IIIXT rw
DLT4000 tape?_d2,6-7 00h off 15.0 CT IIIXT rw
DLT4000 tape?_d1 00h on 30.0 * CT IIIXT rw
TZ88 tape?_d3 1ah off 20.0 CT IV rw
TZ88 tape?_d0 1ah on 40.0 * CT IV rw
DLT4000 tape?_d3 1ah off 20.0 CT IV rw
DLT4000 tape?_d0 1ah on 40.0 * CT IV rw
TZ89 tape?_d4,5 N/A N/A 20-70 CT IV ro
TZ89 tape?_d2,6-7 00h off 35.0 CT IV rw
TZ89 tape?_d1 00h on 70.0 * CT IV rw
_____________________________________________________________________________
DLT8000 Tape Drive Supported Formats
The DLT2000 format is also known as the TZ87 format. The DLT4000 format is
also known as the TZ88 format. The DLT7000 format is also known as the
TZ89 format.
_____________________________________________________________________________
Format Device Special Density Compression Capacity Cartridge I/O
File Name Code (GB)
_____________________________________________________________________________
TZ87 tape?_d0, 3-5 N/A N/A 10/20 CT III ro
TZ87 tape?_d2,6-7 00h off 10.0 CT III rw
TZ87 tape?_d1 00h on 20.0 * CT III rw
TZ88 tape?_d0,3-5 N/A N/A 15/30 CT IIIXT ro
DLT4000 tape?_d0,3-5 N/A N/A 15/30 CT IIIXT ro
TZ88 tape?_d2,6-7 00h off 15.0 CT IIIXT rw
TZ88 tape?_d1 00h on 30.0 * CT IIIXT rw
DLT4000 tape?_d2,6-7 00h off 15.0 CT IIIXT rw
DLT4000 tape?_d1 00h on 30.0 * CT IIIXT rw
TZ88 tape?_d4 1ah off 20.0 CT IV rw
TZ88 tape?_d5 1ah on 40.0 * CT IV rw
DLT4000 tape?_d4 1ah off 20.0 CT IV rw
DLT4000 tape?_d5 1ah on 40.0 * CT IV rw
TZ89 tape?_d3 1bh off 35.0 CT IV rw
TZ89 tape?_d0 1bh on 70.0 * CT IV rw
DLT8000 tape?_d2,6-7 00h off 40.0 CT IV rw
DLT8000 tape?_d1 00h on 80.0 * CT IV rw
_____________________________________________________________________________
TZ30 Tape Drive Supported Formats
____________________________________________________________________________
Format Device Special Density Compression Capacity Cartridge I/O
File Name Code (MB)
____________________________________________________________________________
TZ30 tape?d0-d7 00h N/A 95 CT 1 rw
____________________________________________________________________________
TKZ08 Tape Drive Supported Formats
_____________________________________________________________________________
Format Device Special Density Compression Capacity Cartridge I/O
File Name Code GB
_____________________________________________________________________________
TKZ08 * tape?d0-d7 14h N/A 2.2 8 mm rw
* Also known as Exabyte 8200.
_____________________________________________________________________________
TKZ09 Tape Drive Supported Formats
________________________________________________________________________________
Format Device Special Density Compression Capacity Cartridge I/O
File Name Code GB
________________________________________________________________________________
TKZ08 tape?_d0,d3 14h N/A ? 8mm rw
TKZ09 * tape?_d1,d2, d4-7 15h N/A ? 8mm rw
* Also known as Exabyte 8500. Supports Exabyte 8200 and 8500 formats
________________________________________________________________________________
TSZ07 Tape Drive Supported Formats
____________________________________________________________________________
Format Device Special Density Compression Capacity Cartridge I/O
File Name Code BPI
____________________________________________________________________________
TSZ07 tape?d0, d2 02h N/A 1600 9-Trk rw
TSZ07 tape?d1, d3-7 03h N/A 6250 9-Trk rw
____________________________________________________________________________
TZK20 Tape Drive Supported Formats
____________________________________________________________________________
Format Device Special Density Compression Capacity Cartridge I/O
File Name Code (GB)
____________________________________________________________________________
TZK20 tape?d0-d7 00h N/A 2.3 QICW rw
____________________________________________________________________________
TLZ04 Tape Drive Supported Formats
______________________________________________________________________________
Format Device Special Density Compression Capacity Cartridge I/O
File Name Code (GB)
______________________________________________________________________________
TLZ04 tape?_d0-7 13h N/A 1.3 GB DDS-1 (60m) rw
______________________________________________________________________________
TLZ06 Tape Drive Supported Formats
______________________________________________________________________________
Format Device Special Density Compression Capacity Cartridge I/O
File Name Code (GB)
______________________________________________________________________________
TLZ04 tape?_d0, 3-7 13h N/A 1.3 GB DDS-1 (60m) rw
TLZ06 tape?_d0, 3-7 13h off 1.3 GB DDS-1 (60m) rw
TLZ06 tape?_d1-2 13h on 2.6 GB * DDS-1 (60m) rw
TLZ06 tape?_d0, 3-7 13h off 2.0 GB DDS-1 (90m) rw
TLZ06 tape?_d1-2 13h on 4.0 GB * DDS-1 (90m) rw
______________________________________________________________________________
TLZ07 Tape Drive Supported Formats
_______________________________________________________________________________
Format Device Special Density Compression Capacity Cartridge I/O
File Name Code (GB)
_______________________________________________________________________________
TLZ04 tape?_d0, 3-7 00h N/A 1.3 GB DDS-1 (60m) rw
TLZ06 tape?_d0, 3-7 00h off 1.3 GB DDS-1 (60m) rw
TLZ06 tape?_d1-2 00h on 2.6 GB * DDS-1 (60m) rw
TLZ06 tape?_d0, 3-7 00h off 2.0 GB DDS-1 (90m) rw
TLZ06 tape?_d1-2 00h on 4.0 GB * DDS-1 (90m) rw
TLZ07 tape?_d0, 3-7 00h off 4.0 GB DDS-2 (120m) rw
TLZ07 tape?_d1-2 00h on 8.0 GB * DDS-2 (120m) rw
_______________________________________________________________________________
TLZ09 / SDT-7000 Tape Drive Supported Formats
The SDT-7000 is functionally equivalent to the TLZ09 tape drive and the
SDT-7000 tape format is identical to the TLZ09 tape format.
_________________________________________________________________________________
Format Device Special Density Compression Capacity Cartridge I/O
File Name Code (GB)
_________________________________________________________________________________
TLZ04 tape?_d0, 3-7 00h N/A 1.3 DDS-1 (60m) rw
TLZ06 tape?_d0, 3-7 00h off 1.3 DDS-1 (60m) rw
TLZ06 tape?_d1-2 00h on 2.6 * DDS-1 (60m) rw
TLZ06 tape?_d0, 3-7 00h off 2.0 DDS-1 (90m) rw
TLZ06 tape?_d1-2 00h on 4.0 * DDS-1 (90m) rw
TLZ07 tape?_d0,3-7 00h off 4.0 DDS-2 (120m) rw
TLZ07 tape?_d1-2 00h on 8.0 * DDS-2(120m) rw
TLZ09 tape?_d0,3-7 00h off 4.0 DDS-2 (120) rw
TLZ09 tape?_d1-2 00h on 8.0 * DDS-2 (120) rw
SDT-7000 tape?_d0,3-7 00h off 4.0 DDS-2 (120m) rw
SDT-7000 tape?_d1-2 00h on 8.0 * DDS-2 (120m) rw
_________________________________________________________________________________
TLZ10 / SDT-9000 Tape Drive Supported Formats
The SDT-9000 is functionally equivalent to the TLZ10 tape drive and the
SDT-9000 tape format is identical to the TLZ10 tape format.
_________________________________________________________________________________
Format Device Special Density Compression Capacity Cartridge I/O
File Name Code (GB)
_________________________________________________________________________________
TLZ04 tape?_d0,3-7 00h N/A 1.3 DDS-1 (60m) rw
TLZ06 tape?_d0,3-7 00h off 1.3 DDS-1 (60m) rw
TLZ06 tape?_d1-2 00h on 2.6 * DDS-1 (60m) rw
TLZ06 tape?_d0,3-7 00h off 2.0 DDS-1 (90m) rw
TLZ06 tape?_d1-2 00h on 4.0 * DDS-1 (90m) rw
TLZ07 tape?_d0,3-7 00h off 4.0 DDS-2 (120m) rw
TLZ07 tape?_d1-2 00h on 8.0 * DDS-2 (120m) rw
TLZ09 tape?_d0,3-7 00h off 4.0 DDS-2 (120m) rw
TLZ09 tape?_d1-2 00h on 8.0 * DDS-2 (120m) rw
SDT-7000 tape?_d0,3-7 00h off 4.0 DDS-2 (120m) rw
SDT-7000 tape?_d1-2 00h on 8.0 * DDS-2 (120m) rw
TLZ10 tape?_d0,3-7 00h off 12.0 DDS-3 (125m) rw
TLZ10 tape?_d1-2 00h on 24.0 * DDS-3 (125m) rw
SDT-9000 tape?_d0,3-7 00h off 12.0 DDS-3 (125m) rw
SDT-9000 tape?_d1-2 00h on 24.0 * DDS-3 (125m) rw
_________________________________________________________________________________
SDT-10000 Tape Drive Supported Formats
__________________________________________________________________________________
Format Device Special Density Compression Capacity Cartridge I/O
File Name Code (GB)
__________________________________________________________________________________
TLZ04 tape?_d0,3-7 00h N/A 1.3 DDS-1 (60m) rw
TLZ06 tape?_d0,3-7 00h off 1.3 DDS-1 (60m) rw
TLZ06 tape?_d1-2 00h on 2.6 * DDS-1 (60m) rw
TLZ06 tape?_d0,3-7 00h off 2.0 DDS-1 (90m) rw
TLZ06 tape?_d1-2 00h on 4.0 * DDS-1 (90m) rw
TLZ07 tape?_d0,3-7 00h off 4.0 DDS-2 (120m) rw
TLZ07 tape?_d1-2 00h on 8.0 * DDS-2 (120m) rw
TLZ09 tape?_d0,3-7 00h off 4.0 DDS-2 (120m) rw
TLZ09 tape?_d1-2 00h on 8.0 * DDS-2 (120m) rw
SDT-7000 tape?_d0,3-7 00h off 4.0 DDS-2 (120m) rw
SDT-7000 tape?_d1-2 00h on 8.0 * DDS-2 (120m) rw
TLZ10 tape?_d0,3-7 00h off 12.0 DDS-3 (125m) rw
TLZ10 tape?_d1-2 00h on 24.0 * DDS-3 (125m) rw
SDT-9000 tape?_d0,3-7 00h off 12.0 DDS-3 (125m) rw
SDT-9000 tape?_d1-2 00h on 24.0 * DDS-3 (125m) rw
SDT-10000 tape?_d0,3-7 00h off 20.0 DDS-4 (150m) rw
SDT-10000 tape?_d1-2 00h on 40.0 * DDS-4 (150m) rw
__________________________________________________________________________________
TZS20 Tape Drive Supported Formats
_____________________________________________________________________________
Format Device Special Density Compression Capacity Cartridge I/O
File Name Code (GB)
_____________________________________________________________________________
TZS20 tape?_d0, 3-7 00h off 25.0 GB AIT rw
TZS20 tape?_d1-2 00h on 50.0 GB * AIT rw
_____________________________________________________________________________
SDX-300C Tape Drive Supported Formats
The SDX-300C format is also known as the TZS20 format.
______________________________________________________________________________
Format Device Special Density Compression Capacity Cartridge I/O
File Name Code (GB)
______________________________________________________________________________
TZS20 tape?_d0, 3-7 00h off 25.0 AIT 25 rw
TZS20 tape?_d1-2 00h on 50.0 * AIT 25 rw
SDX-300C tape?_d0, 3-7 00h off 25.0 AIT 25 rw
SDX-300C tape?_d1-2 00h on 50.0 * AIT 25 rw
SDX-300C tape?_d0, 3-7 00h off 35.0 AIT 35 rw
SDX-300C tape?_d1-2 00h on 70.0 * AIT 35 rw
______________________________________________________________________________
SDX-500C Tape Drive Supported Formats
The SDX-300C format is also known as the TZS20 format.
______________________________________________________________________________
Format Device Special Density Compression Capacity Cartridge I/O
File Name Code (GB)
______________________________________________________________________________
TZS20 tape?_d0, 3-7 00h off 25.0 AIT 25 rw
TZS20 tape?_d1-2 00h on 50.0 * AIT 25 rw
SDX-300C tape?_d0, 3-7 00h off 25.0 AIT 25 rw
SDX-300C tape?_d1-2 00h on 50.0 * AIT 25 rw
SDX-300C tape?_d0, 3-7 00h off 35.0 AIT 35 rw
SDX-300C tape?_d1-2 00h on 70.0 * AIT 35 rw
SDX-500C tape?_d0, 3-7 00h off 50.0 AIT 50 rw
SDX-500C tape?_d1-2 00h on 100.0 * AIT 50 rw
______________________________________________________________________________
The following formats are supported for the TZK10 QIC-format tape drive:
QIC-24 (re) 512-byte block size; QIC-120 and QIC-150 (rw) 512-byte block
size; and QIC-320 (rw) variable block size. With QIC-format tapes, except
QIC-320 and QIC-525, all read and write operations must be in multiples of
the block size because record boundaries are not preserved. Use the
following device special file names to select QIC densities:
__________________________________________________________________
Format Device Special Block Size Capacity Cartridge I/O
File Name
__________________________________________________________________
QIC-24 tape?_d3 fixed 512 60MB DC600A ro
QIC-120 tape?_d0 fixed 512 120MB DC6150 rw
QIC-120 tape?_d0 fixed 512 120MB DC600XTD, rw
QIC-150 tape?_d2, 4 fixed 512 150MB DC6150 rw
QIC-150 tape?_d2, 4 fixed 512 150MB DC600XTD rw
QIC-320 tape?_d5,6 fixed 1024 320MB DC6320 rw
QIC-525 tape?_d5,6 fixed 1024 525MB DC6525 rw
QIC-320 tape?_d1,7 variable 320MB DC6320 rw
QIC-525 tape?_d1,7 variable 525MB DC6525 rw
__________________________________________________________________
The following formats are supported for the TZK11 QIC-format tape drive:
QIC-24 (read only) 512-byte block size; QIC-120 and QIC-150 (rw) 512-byte
block size; and QIC-320/525/1Gig/2Gig (rw) variable block size. With QIC-
format 24/120/150 tapes, all read and write operations must be in multiples
of the block size because record boundaries are not preserved. Use the
following device special file names to select QIC densities:
__________________________________________________________________
Format Device Special Block Size Capacity Cartridge I/O
File Name
__________________________________________________________________
QIC-24 tape?_d3,4 fixed 512 60MB DC600A ro
QIC-120 tape?_d0 fixed 512 120MB DC6150 rw
QIC-120 tape?_d0 fixed 512 120MB DC600XTD rw
QIC-150 tape?_d2 fixed 512 150MB DC6150 rw
QIC-150 tape?_d2 fixed 512 150MB DC600XTD rw
QIC-320 tape?_d1 variable 320MB DC6320 rw
QIC-525 tape?_d1 variable 525MB DC6525 rw
QIC-1G tape?_d1 variable 1G DC9000 rw
QIC-2G tape?_d1 variable 2G DC9000 rw
QIC-320 tape?_d5,6 fixed 1024 320MB DC6320 rw
QIC-525 tape?_d5,6 fixed 1024 525MB DC6525 rw
__________________________________________________________________
The TZK11 tape drive uses autodensity select feature of the drive. The 2
Gig density can only be written on a 2 Gig cartridge. The 1 Gig density
can only be written on a 1 Gig cartridge. The 320/525 cartridge can be
used to write 120/150/320/525 densities.
With all fixed-block tape devices, when you use the dd command to transfer
a file to tape you must use padding to complete a block by specifying the
conv=sync option. For example, the following two dd commands use the
conv=sync option to transfer the /etc/motd file with a size of
approximately 400 bytes to the QIC-format tape drives:
dd if=/etc/motd of=/dev/tape/tape0_d2 bs=10k conv=sync
dd if=/etc/motd of=dev/tape/tape0_d0 bs=512 conv=sync
The data field of 1 also tells the driver not to continue scanning LUNs for
this target when this attribute is found.
Tape Support
Refer to the Software Product Description (SPD) for information on the
specific tape devices that are supported. Refer to the Systems and Options
Catalog (SOC) for information on which devices are supported on the various
system platforms.
EXAMPLES
The following example shows the configuration specification that you might
have for a DEC 3000 Model 500 system with a PMAZC controller in slot 0 and
KZTSA devices in slots 1 and 2:
bus tc0 at nexus?
bus tcds0 at tc0 slot 6 vector tcdsintr # onboard scsi
bus tcds1 at tc0 slot 0 vector tcdsintr # PMAZC in tc slot 0
bus tza0 at tc0 slot 1 vector kztsaintr # KZTSA in tc slot 1
bus tza1 at tc0 slot 2 vector kztsaintr # KZTSA in tc slot 2
controller scsi0 at tcds0 slot 0 vector scsiintr # Internal port
controller scsi1 at tcds0 slot 1 vector scsiintr # External port
controller scsi2 at tcds1 slot 0 vector scsiintr # A port
controller scsi3 at tcds1 slot 1 vector scsiintr # B port
controller scsi4 at tza0 slot 0 vector scsiintr
controller scsi5 at tza1 slot 0 vector scsiintr
ERRORS
All diagnostic messages are sent to the error logger subsystem.
FILES
/dev/tape/tape?_d?, /dev/ntape/tape?_d?
RELATED INFORMATION
ddr.dbase(4), ddr_config(8), mtio(7), RAID(7), SCSI(7), MAKEDEV(8),
uerf(8), tapex(8)
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