On Tue, Jan 09, 2007 at 01:52:44PM -0500, Sean Connors wrote:
> Sir,
> 
> A simple command, but you must ensure that your tape drive has native 
> compression turned off and you use a no-rewind device. If your tape 
> drive is say /dev/st0, then the command would be:
> 
> amtapetype -f /dev/nst0
> 
> The command itself can take up to 72 hours to complete, but the result 
> is specific to your system. Again, ensure hardware compression is turned 
> off.
> 
> 
> Yogesh Hasabnis wrote:
> >Hi All,
> >
> >I would be grateful if anybody can forward me the
> >tapetype definition for an HP Ultrium 960 LTO3 tape
> >device (external). The SCSI controller used is an HP
> >374654-B21 - 64-bit Single Channel Wide Ultra320 SCSI
> >Controller. Basically, on what factors does the
> >tapetype deifintion depend? Else if I need to give the
> >amtapetype command is the command "amtapetype -t
> >/dev/nst0" sufficient? Or do I need to specify
> >additional arguments to the command? How much time
> >will this command take?
> >
> >Apologies if this question is already answered.
> >
> >Thanks in advance.
> >

I wouldn't trust an amtapetype run that took 72 hrs.
Nor a 48 or 24 hr run either.

An extremely fast amtapetype would be 3 hrs,
a very slow one 12 hr.

Be sure to use the -e option to avoid overly long runs.

-- 
Jon H. LaBadie                  jon AT jgcomp DOT com
 JG Computing
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