mksysb cannot write to device error
RISC F40 7025
Tape 4mm 24/48 autoloader HP C1553A
Everytime the customer runs a mksysb it fails with this
error message: Cannot write to device error
The customer cannot run any commands against the
This tape drive was shipped with the system.
The command mksysb -i /dev/rmt0 continually failed with the
error "cannot write to device."
After further investigation, it was learned that no backup
commands would write to the device. The tape drive was
clearly defined in the ODM as a SCSI 4mm tape drive and was
listed as available. After many tries, it was finally
determined that the dip-switch settings on the tape drive
were set as "on on off on on on on on". The HP web page on
the device listed these dip switch settings as appropriate
for an HP machine, but for an IBM machine they should be set
to "on on off on on off off on."
After having the customer change the settings, he was able
to perform a mksysb and other backups without further
problems. It looks like Manufacturing needs to set the dip
switches correctly before they put them in any AIX boxes.
Closing with customer approval
Support Line: mksysb cannot write to device error ITEM: BZ2264L
Dated: May 1997 Category: N/A
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