I did give it -e of 200G which is it's native capacity, and it estimated 51 
hours.  It's capable of 86.4GB/hr so each pass *should* take about 2.5 hours. 


-----Original Message-----
From: owner-amanda-users AT amanda DOT org on behalf of Jon LaBadie
Sent: Sat 7/28/2007 10:07 PM
To: amanda-users AT amanda DOT org
Subject: Re: amtypetype taking 51 hours??
 
On Sat, Jul 28, 2007 at 07:18:32PM -0500, Steven Osborn wrote:
> 
> I have a Dell Powervault 124T LTO-2 and I'm running amtapetype on it and it 
> is running incredibly slow.  It estimates 51 hours to check the tape.  I'm 
> new to amanda, but this seems absurdly slow to me.

I'll bet you did not give amtapetype an estimate of your tapes capacity,
the -e option.  Without that, it writes many, many very small files
which cause the drive to stop and restart at each EOF.

Abort the attempt and restart amtapetype.

For future reference, check the manufacturer's estimated writing speed
and calculate how long, at that speed, one complete pass should take.
amtapetype makes two complete passes during its run.  Thus the total
time should be 2-4 times what you calculated for 1 pass.

jl
-- 
Jon H. LaBadie                  jon AT jgcomp DOT com
 JG Computing
 4455 Province Line Road        (609) 252-0159
 Princeton, NJ  08540-4322      (609) 683-7220 (fax)

<<winmail.dat>>