On Saturday 01 November 2003 03:33, Rick Duvall wrote: >So, if the first 2 feet are damaged, then can't I take the cartridge > apart and cut the first 2 feet off of the reel and re-assemble the > cartridge?
No, because the tapes own hidden headers that tell the drive what it is, and if the data is compressed etc, are on that first piece, take it off, or bulk erase the tape, and unless your drive is capable of actually reformatting the tape (few are I'd guess, in my dat/DDS usages here, I've never found a drive that could do that) then the tape is week old toast and can be thrown out. >Where these tapes are hanging up is about the 6th filesystem tarred > and written to tape. The amverify is failing on the 6th fileno. Humm, that almost doesn't walk like that duck. How about the next tape, whats it do? When amverify fails, do an mt -f /dev/nst0 tell and write it down. Rewind and rerun until it fails again. If both tells are the same, then something is wrong with that tape. If they aren't by several block numbers, then there may be some other effect at work. What, I haven't the foggiest without more clues. >Sincerely, > >Rick Duvall >----- Original Message ----- From: "Gene Heskett" <[EMAIL PROTECTED]> >To: "Rick Duvall" <[EMAIL PROTECTED]>; > <[EMAIL PROTECTED]> Sent: Friday, October 31, 2003 9:05 PM >Subject: Re: Verify Tape Integrity > >> On Friday 31 October 2003 23:18, Rick Duvall wrote: >> >Is there any way to write data on the entire length of a tape and >> > try to read it back to verify that all that was written over the >> > entire tape can be read? I like to compare it with a DOS >> > scandisk, only for a tape instead of a filesystem. >> > >> >Sincerely, >> > >> >Rick Duvall >> >Online Highways >> >System Administrator >> >(541) 997-8401 x 111 >> >> There is amverify, but AFAIK it only reads to the end of the data >> written, not to the actual EOT. >> >> As a comment, generally speaking, a bad tape is normally damaged >> in the first 2 feet, and in my experience if you can read the >> first file, you can read the rest of the tape. But that, and a >> buck will get you a cup of coffee most places too. >> >> -- >> Cheers, Gene >> AMD [EMAIL PROTECTED] 320M >> [EMAIL PROTECTED] 512M >> 99.27% 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. -- Cheers, Gene AMD [EMAIL PROTECTED] 320M [EMAIL PROTECTED] 512M 99.27% 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.
