Scsi Device Problems; Installed Disk Drive Problems - DEC 600s Owner's Manual

SCSI Device Problems

SCSI Device Problems
If you are having trouble with a SCSI device, such as an internal
Overview
disk drive, or a tape drive in an expansion box, locate the
problem in the next sections. For specific information about your
SCSI device, refer to the documentation that was shipped with
your system, or in the case of an option, with the option kit.
Internal Disk If you are having problems with an installed disk drive, see
Drive Not Table 13–18. Do not set any of the SCSI device ID numbers to 7.
Working This number is used for the SCSI controller on the system.
Table 13–18 Installed Disk Drive Problems
Possible Cause
Two SCSI identifiers are set
to the same number.
Loose cables.
Defective drive.
If you know that the operating system is installed on the disk
Software on
Disk Drive drive that you are trying to boot, but you cannot bring it up, see
Table 13–19.
Does Not Boot
13–24 Identifying a Problem
Corrective Action
Enter the show device command as
described earlier in this chapter. If a
drive is not recognized, reset each SCSI
ID to a unique number. (See the option
documentation for more information on
setting SCSI IDs for optional devices.)
Check to make sure all cables are
connected.
Refer to Chapter 14 for information on
running diagnostic tests.