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AIX
LTO5 Catridge 1.5 TB Natvie capactiy unable to hold 1.44TB data in one volume
Post 302813287 by m_raheelahmed on Monday 27th of May 2013 02:22:14 AM
05-27-2013
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LEARN ABOUT OSF1
tz
tz(7) Miscellaneous Information Manual 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 scsi- intr 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 den- sity, 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 sup- ported. 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. 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. 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 oper- ations. 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: tape?_d0, or any device name with the suffix: _d3, _d4, _d5, _d6, and _d7. In this case, compression is set to Off(0x0). 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: CompacTape, such as CompacTapeIII Read and write I/O is supported 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 den- sities: ------------------------------------------------------------------- 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 spec- ifying 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) delim off delim off tz(7)