On Monday 09 June 2003 08:30, Gene Heskett wrote: >On Monday 09 June 2003 07:51, Toomas Aas wrote: >>Hello! >> >>> Anyone use amverify? >> >>I guess everyone in their right mind does so :-) > >That depends on how quickly you want to wear the tape system out > since doing it everytime doubles the passes on both the tpae and > the drive. > >>> When I use it amrestore complains that its not at the head of the >>> tape so filemarks maybe offset. >> >>Excuse the really weird-seeming question, but what tape device are >> you using and what is the tape block size set to? I'm running >> Amanda on FreeBSD 4.7 using IBM DDS-4 drive and I had the same >> error as long as the tape blocksize was set to 1k. When I set it >> to variable, amverify started to work correctly. > >This is also something that I've observed, but I now have in place a >script that converts each tape as it comes around in the rotation to >no compression and variable blocksize, eg 0. > >So I'm running amverify on last nights tape just for grins. And >there's no errors being reported in the shell window after about 5 >minutes of reading. This is a pleasant change. > >I'm curious if it will squawk about the 2 extra, non-amanda files on >the end of the tape. I've made my tapetype a hundred megs smaller, >and I'm adding 2 tar files, one of the indices generated while >makeing this tape, and one of the configs dir in effect at the time >*this* tape was made. I guess I'm paranoid. > >Another effect I'm detecting, right at the edge of being > un-noticable, seems to indicate that switching from a 512 byte > block size to variable, seems to have sped it up slightly, > (runtimes used to be about 3.5 hours now seem to be around 3 flat) > and maybe even made the tape hold a few more megs, but this is > subjective, I'm creeping back up on the tapetype size by 25 megs a > day till I hit an EOT again. From the tell report the last time > that occured, it actually went a few megs past the 4 gig mark, with > the 4 gigs stated in decimal. > >20 minutes reading now, no errors. I take it thats a Good > Thing(tm).
Well, in addition to talking to myself, I find it a bit odd that while it did not find any errors, it also did not notice the 2 extra files on the tape. Should it have? I'm going to see if I can do an 'mt fsf 44' and then read then as this gets odder by the minute. -- Cheers, Gene AMD [EMAIL PROTECTED] 320M [EMAIL PROTECTED] 512M 99.26% setiathome rank, not too shabby for a WV hillbilly Yahoo.com attornies please note, additions to this message by Gene Heskett are: Copyright 2003 by Maurice Eugene Heskett, all rights reserved.
