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How to troubleshoot tape devices

Abstract

The following articles presents a series of HP-UX commands useful to troubleshoot tape devices problems. Output examples are present along the commands.

# ioscan -fnkC tape
Class     I  H/W Path    Driver      S/W State H/W Type  Description
=====================================================================
tape      0  8/16/5.0.0  stape       CLAIMED   DEVICE    HP      C1537A
                        /dev/rmt/0m            /dev/rmt/c1t0d0BESTn
                        /dev/rmt/0mb           /dev/rmt/c1t0d0BESTnb
                        /dev/rmt/0mn           /dev/rmt/c1t0d0DDS
                        /dev/rmt/0mnb          /dev/rmt/c1t0d0DDSb
                        /dev/rmt/c1t0d0BEST    /dev/rmt/c1t0d0DDSn
                        /dev/rmt/c1t0d0BESTb   /dev/rmt/c1t0d0DDSnb
# mt -f /dev/rmt/0mn status
Drive:  HP C1537A
Format:
Status: [0]
File:   0
Block:  0
# lssf /dev/rmt/0mn
stape card instance 1 SCSI target 0 SCSI LUN 0 at&t no rewind best density available at address 8/16/5.0.0 /dev/rmt/0mn
for tape in $(ls /dev/rmt/*)
do
lssf $tape
done

Example:

# for tape in $(ls /dev/rmt/*)
> do
> lssf $tape
done> done
stape card instance 2 SCSI target 6 SCSI LUN 0 AT&T best density available at address 0/1/1/0.6.0 /dev/rmt/0m
stape card instance 2 SCSI target 6 SCSI LUN 0 Berkeley best density available at address 0/1/1/0.6.0 /dev/rmt/0mb
stape card instance 2 SCSI target 6 SCSI LUN 0 AT&T No-Rewind best density available at address 0/1/1/0.6.0 /dev/rmt/0mn
stape card instance 2 SCSI target 6 SCSI LUN 0 Berkeley No-Rewind best density available at address 0/1/1/0.6.0 /dev/rmt/0mnb
stape card instance 2 SCSI target 6 SCSI LUN 0 AT&T best density available at address 0/1/1/0.6.0 /dev/rmt/c2t6d0BEST
stape card instance 2 SCSI target 6 SCSI LUN 0 Berkeley best density available at address 0/1/1/0.6.0 /dev/rmt/c2t6d0BESTb
stape card instance 2 SCSI target 6 SCSI LUN 0 AT&T No-Rewind best density available at address 0/1/1/0.6.0 /dev/rmt/c2t6d0BESTn
stape card instance 2 SCSI target 6 SCSI LUN 0 Berkeley No-Rewind best density available at address 0/1/1/0.6.0 /dev/rmt/c2t6d0BESTnb
# ll /dev/rmt/* | sort -k 6
crw-rw-rw-   2 bin        bin        205 0x026000 Aug  5 09:55 /dev/rmt/0m
crw-rw-rw-   2 bin        bin        205 0x026000 Aug  5 09:55 /dev/rmt/c2t6d0BEST
crw-rw-rw-   2 bin        bin        205 0x026040 Aug  5 09:55 /dev/rmt/0mn
crw-rw-rw-   2 bin        bin        205 0x026040 Aug  5 09:55 /dev/rmt/c2t6d0BESTn
crw-rw-rw-   2 bin        bin        205 0x026080 Aug  5 09:55 /dev/rmt/0mb
crw-rw-rw-   2 bin        bin        205 0x026080 Aug  5 09:55 /dev/rmt/c2t6d0BESTb
crw-rw-rw-   2 bin        bin        205 0x0260c0 Aug  5 09:55 /dev/rmt/0mnb
crw-rw-rw-   2 bin        bin        205 0x0260c0 Aug  5 09:55 /dev/rmt/c2t6d0BESTnb
for tape in $(ls /dev/rmt/*)
do
mt -f $tape status
sleep 1
done

Example:

# for tape in $(ls /dev/rmt/*)
> do
> mt -f $tape status
> sleep 1
> done
Drive:  HP C7438A
Format:
Status: [41112600] BOT online compression immediate-report-mode
File:   0
Block:  0
Drive:  HP C7438A
Format:
Status: [41112600] BOT online compression immediate-report-mode
File:   0
Block:  0
Drive:  HP C7438A
Format:
Status: [41112600] BOT online compression immediate-report-mode
File:   0
Block:  0
Drive:  HP C7438A
Format:
Status: [41112600] BOT online compression immediate-report-mode
File:   0
Block:  0
Drive:  HP C7438A
Format:
Status: [41112600] BOT online compression immediate-report-mode
File:   0
Block:  0
Drive:  HP C7438A
Format:
Status: [41112600] BOT online compression immediate-report-mode
File:   0
Block:  0
Drive:  HP C7438A
Format:
Status: [41112600] BOT online compression immediate-report-mode
File:   0
Block:  0
Drive:  HP C7438A
Format:
Status: [41112600] BOT online compression immediate-report-mode
File:   0
Block:  0

Authors

This page was last modified on 14 July 2010, at 03:29. This page has been accessed 2,264 times.