[HPADM] fbackup can store only 18-19 gigabytes on dds4 tape drive

From: Kurt Freydl (kf@leuthold-partner.ch)
Date: Fri Jan 27 2006 - 06:17:59 EST


Hi Admins,

I have a problem with our backup tape. We use a HP DDS4 Tape Drive
(HP C5683A) on a HP B2000 workstation with HP-UX 10.20 installed.

 From fbackup I get this messages:
....
fbackup(3003): normal EOT
fbackup(3316): enter 'yes' when volume 2 is ready on /dev/rmt/1m, or
'no' to discontinue:
fbackup(3004): writer aborting
...

EOT means "End Of Tape". But, the amount of the 4 directories, I want
to be backuped, is about 18.5 Gigabyte. I checked this with "du -sk".
A DDS4 should hold 20-40GB.

The device file is:
# ll /dev/rmt/1m
crw-rw-rw- 2 bin bin 205 0x033000 Jan 27 03:48 /dev/rmt/1m

result of du -sk:
17838163 /path/to/dir1
29210 /path/to/dir2
145254 /path/to/dir3
11278 /path/to/dir4

Does anybody has an idea why I can't write more than about 18-19 GB
to the tape drive?

Thank you for response :-)
Kurt

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leuthold + partner ag     fax:    +41 (0)52 269 07 79
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CH-8400 Winterthur        Switzerland
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