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Quantum Corporation

            DLTtape

 Application Note

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Copyright 1999-2001 Quantum Corporation or its subsidiaries or affiliates.  All rights reserved

For a DLTtape device whose SCSI ID is set to 4 and is attached to the system's first host adapter but not
system configured, the system response should be similar to the following:

Tape drive: unit 4 on SCSI controller 0: unknown

3.

 If you're operating system is IRIX 5.3, open the /usr/var/sysgen/master.d/scsi file for editing; for IRIX

6.X, open /var/sysgen/master.d/scsi file for editing. As appropriate for the currently running operating
system version, add the following to the table of structures. This will enable DLTtape system recognition:

For IRIX 5.3:
/* DLTtape tape drive */
{DECDLT, TPDLT, "<Vendor length>", 7, "<Vendor ID>", "<DLT tape unit>",0 , 0, {0, 0, 0, 0 },
MTCAN_BSF | MTCAN_BSR | MTCAN_APPEND | MTCAN_SPEOD | MTCAN_CHKRDY | MTCAN_VAR
| MTCAN_SETSZ | MTCAN_SILI | MTCAN_SEEK | MTCAN_SYNC | MTCAN_CHTYPEANY, 20, 8*60,
20*60, 5*60, 16384, 64*1024}

For IRIX 6.X:
/* DLTtape tape drive */
{DECDLT, TPDLT, "<Vendor length>", 7, "<Vendor ID>", "<DLT tape unit>",0 , 0, {0, 0, 0, 0 },
MTCAN_BSF | MTCAN_BSR | MTCAN_APPEND | MTCAN_SPEOD | MTCAN_CHKRDY | MTCAN_VAR
| MTCAN_SETSZ | MTCAN_SILI | MTCAN_SEEK | MTCAN_SYNC | MTCAN_CHTYPEANY, 20, 8*60,
20*60, 5*60, 16384, 64*1024,0 (u_char *)0}

Depending on the DLTtape tape peripheral you are installing, you will need to make substitutions for
<Vendor length>, <Vendor ID>, and <DLTtape tape unit> in the above structure. The following table
shows the DLT tape product and the corresponding substitution values:

DLTtape Tape Product <Vendor length> <Vendor ID> <DLTtape tape unit>

DLTtape Tape Product

<Vendor length>

<Vendor ID>

<DLTtape tape unit>

DLT2000 or DLT2000XT

3

DEC

DLT2000

DLT2500 or DLT2500XT

3

DEC

DLT2500

DLT2700 or DLT2700XT

3

DEC

DLT2700

DLT4000

7

Quantum

DLT4000

DLT4500

7

Quantum

DLT4500

DLT4700

7

Quantum

DLT4700

DLT7000

7

Quantum

DLT7000

DLT8000

7

Quantum

DLT8000

Keep in mind that the Vendor ID entries are case sensitive. Refer to the tpsc_types structure in the
/usr/include/sys/tpsc.h file for further information on the above structure entries and to the
/usr/include/sys/mtio.h file for further information on the MTCAN flag definitions.

4.

 Enter the following command to configure the DLTtape device into the system:

/etc/autoconfig

5.

 Reboot the system.

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