chris weisiger wrote:

I have another question, i think i need to turn compression of...
so my question is,
which device to i turn compression off on?

That's OS dependant.
For solaris, you need to specify the correct device /dev/rmt/0l,
assuming you have configured /kernel/drv/st.conf correctly for
the drive in question.
For linux, there is a file /etc/stinit.def with parameters
used while booting or loading the tape kernel module;
or the command "mt -t /dev/st0 compression 0".
(Google around a bit -- this has been discussed many times
before on this list.)

You can of course always find the dip switch
on the drive that disables the compression too.

But the good news for your drive is that a modern LTO drive
does not suffer from the expanding-already-compressed-files
syndrome that most tape drives have.  So, in fact, it does
not matter that much anymore to turn compression off for
an LTO drive.

Alexander Jolk wrote:

I wrote:

I have just got a PV-132T with an LTO-2 drive.

Running amtapetype on it gives me the following:

define tapetype lto2 {
   comment "just produced by tapetype prog (hardware compression off)"
   length 199690 mbytes
   filemark 10922 kbytes
   speed 30058 kps
}

--
Paul Bijnens, Xplanation                            Tel  +32 16 397.511
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