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Re: Disabled hw compression
2003-02-18 07:06:24
Joshua Baker-LePain wrote:
On Mon, 17 Feb 2003 at 11:27pm, marc.bigler AT day DOT com wrote
I am using an Exabyte Eliant 820 tape drive on Linux kernel 2.4.18 and
would like to make sure the hardware compression is disabled. Does anyone
know how I can check that ?
For that drive, compression is controlled via density. 0x15 is
uncompressed.
The latest amtapetype from amanda 2.4.4b1 includes an heuristic test to
check if the tapedrive really has hardware compression disabled (it
could be on because dipswitches were set to force it on or off
regardless of software commands).
Run it as "amtapetype -c ..." to do the compression detection test only
(the tape contents are lost; use a scratch tape!).
Paul
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