[Dump-users] -j/-z compression

[Dick V. <di...@ti...>]

Hi guys

The dump manpage says my tapedrive has to support variable length block
writing if I want to use -j or -z compression. I cannot deduct this
from the tapedrive docs, so I just tried it out. This is what my box says:

  DUMP: Volume 1 started with block 1 at: Thu Oct 28 10:43:49 2004
  DUMP: write error 70 blocks into volume 1: Input/output error
  DUMP: Do you want to rewrite this volume?: ("yes" or "no")
	no
  DUMP: Do you want to start the next tape?: ("yes" or "no")
	no
  DUMP: The ENTIRE dump is aborted.

The goes for a DDS4 and a DLT-VS160 drive.
dmesg shows this with the DLT drive:

Oct 28 11:43:50 aline kernel: st0: Error with sense data: Current st0:
sense key Illegal Request
Oct 28 11:43:50 aline kernel: Additional sense: Invalid field in cdb

And with my DDS4 drive my kernel says:

st0: Write not multiple of tape block size.

So I guess I am out of luck?

-- 
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