On Sun, Jul 29, 2007 at 10:38:07AM -0500, Steven Osborn wrote: > 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: [EMAIL PROTECTED] on behalf of Jon LaBadie > Sent: Sat 7/28/2007 10:07 PM > To: amanda-users@amanda.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. >
Something seems wrong. I wouldn't trust any values obtained from a 24+ hour run. There is a report after pass 1. If you don't get that by about 2x, at most 3x, the calculated figure I'd abort. Six - eight hours is a common complete runtime. Check your setup. Do a dd of about 1GB from /dev/?random? and see how long that takes. Extrapolate if it is too slow. SCSI setups have been know to have problems once or twice ;-) -- Jon H. LaBadie [EMAIL PROTECTED] JG Computing 4455 Province Line Road (609) 252-0159 Princeton, NJ 08540-4322 (609) 683-7220 (fax)