On Sat, Oct 23, 1999 at 10:04:48AM +0100, Hillary Corney wrote:
> Hi ftapers,
...
> I have tried tar and dump.
>
> Please could somebody explain how I should set the Block size density and
> compression on these drives and what the proper command syntax is.
If your drive supports it, "mt setblk 0", sets block-size to variable.
This works on my SCSI DAT, don't know about others. One problem you
might run into, if "st" (SCSI Tape) is a module loaded by kerneld it
will be autoclean-ed after a couple of minutes, your setting will be
lost (a real PITA). On my SuSE-6.1 box I'm using "kmod" which load
modules on demand, much like kerneld, but unload nothing. Look in
"/usr/src/linux/Documentation/kmod.txt" for more info. For SCSI tape
(st) see "/usr/src/linux/drivers/scsi/README.st".
Try "mt datcompression", it reports the state of compression: on|off.
mt datcompression 0
mt datcompression 1
these commands are off, on respectively. Apparently not supported by
all drives.
BTW: there are two different version of "mt". One is actually
"mt-st". Use "mt -v" to find out which one you have.
--
Louis-ljl-{[EMAIL PROTECTED]}
