Silicon Graphics IRIS Workstation, User Manual

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42 IRIS WORKSTATION GUIDE
Version 1.0
System Administration
Tape Drive Specifications
Device Name:
Density:
Speed:
Tape Lengths:
Suppliers:
/dev/rmt1
10,000 flux changes per inch
l00K per foot
90 inches per second
300 and 450 feet
3M/Scotch
Data Electronics, Inc.
Table 6-4: Tape Drive Specifications
WARNING: Do not press either
Reset
button or the
Power
switch while UNIX is running without first using
the /etc/reboot -q command. If the IRIS Workstation is
under the control of the PROM Monitor, then the
Reset
buttons and the
Power
switch may be safely used.
1. To shut down UNIX, type /etc/reboot -q .
$ /etc/reboot -q
NOTE: /etc/reboot -q is a privileged command
requiring super-user permission.
2. Set the
Power
switch on the Cabinet to the
Off
position.
6.14 Crash Recovery
This section is necessarily incomplete. See Appendix C for a list of error
messages and probable causes. If the IRIS Workstation stops running for some
reason, first try to reboot it without hitting the
Reset
button. Use the
/etc/reboot -q command.
$ /etc/reboot -q
If keystrokes are not echoed, or for some other reason it is not possible to shut
down the system gently, press the
Reset
button and hope that the file systems
aren’t damaged.
The next step is to boot the system with the normal boot procedure. During
the boot procedure, the file check program fsck will be run and will display
information about the state of the file system. (Appendix B explains how to use
fsck ; crash (8) is a manual entry with advice on recovering from a crash.)