Quantum DLT 2500 Manual de servicio descargar pdf (Pagina 90)

Chapter 6: Troubleshooting and Maintenance

• The sled-mounted DLT2000XT tape drive may be plugged into the wrong SCSI

channel.

• The power supply for the DLT2000XT tape drive or DLT2500XT stacker may be

malfunctioning or dead.

Caution: The power supply in the desktop DLT2000XT tape drive or DLT2500XT stacker

should be repaired only by qualiﬁed service personnel.

The easiest way to tell if the host system sees a DLT2000XT tape drive or DLT2500XT

stacker you have installed is to use the hinv (hardware inventory) command. The hinv

command lists all the information contained in the host system’s hardware inventory

table. This table is generated and updated each time the host system is rebooted. If the

system was not fully rebooted after the new DLT2000XT tape drive or DLT2500XT

stacker was installed, the inventory table will not have information about it.

Using hinv

The example list from an hinv inquiry to a deskside or rackmount system may include

more or less information than is listed for your system; some units have more optional

hardware features.

In the following example, SCSI controllers 0 and 1 are used to control the seven drives

that reside internally. SCSI controller 2 is the ﬁrst port on an optional SCSI mezzanine

card used to communicate with the tape drive. The example shows that integral SCSI

controller 2 is communicating with a tape drive.

Tip: If you installed a DLT2000XT tape drive or DLT2500XT stacker, and the hinv list

shows that the host system does not see it attached to any SCSI controller, read the section

“What to Do If hinv Does Not See the Tape Drive.” Also refer to Table 6-1 for a list of

possible solutions.

% hinv

4 100 MHZ IP19 Processors

CPU: MIPS R4400 Processor Chip Revision: 4.0

FPU: MIPS R4010 Floating Point Chip Revision: 0.0

Data cache size: 16 Kbytes

Instruction cache size: 16 Kbytes

Secondary unified instruction/data cache size: 1 Mbyte

Main memory size: 256 Mbytes, 2-way interleaved

I/O board, Ebus slot 3: IO4 revision 1

Integral IO4 serial ports: 4

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Quantum DLT 2500 Manual de servicio Pagina 90