Tar blocksize 20

[telande35]

Hey,

SCO Openserver 5
We bought a new tapestreamer, but the backup time is doubled (from 3h to 6h).

I tried to do tar cvfb /dev/rct0 64 : but that is not possible maximum blocksize is 20.

(before on the old tapestream I used tar cvfb /dev/rct0 20 - that was the 3h.
The same tar on the new tapestream goes to 6h).

Is there a way to speed up the tar commando?


Thanks in advance

 

[PHV]

You may try this:
tape -a 1024 setblk /dev/xct0

Hope This Helps, PH.
Want to get great answers to your Tek-Tips questions? Have a look at FAQ219-2884 or FAQ222-2244

 

[motoslide]

What type of tape drive did you get (Make/Model)?
How is it attached to the server?
What was your old tape drive?
Tape drives can vary greatly in their transfer speeds. It would also be helpful to know how much DATA you are backing up nightly.

Just looking for more clues...

 

[edfair]

You could modify the /etc/default/tar and set the default archive line to mix and match with your requirements and the line for rct0.
From your filesystem to back up it would be tar cv.

Ed Fair
Give the wrong symptoms, get the wrong solutions.