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Full Discussion: Mksysb and Savevg woes
Top Forums UNIX for Dummies Questions & Answers Mksysb and Savevg woes Post 302209262 by boredazfcuk on Thursday 26th of June 2008 10:38:33 AM
Old 06-26-2008
sorted!

hi,

i would have posted this in the aix forum but i'm a unix noob. thought it would have been more appropriate to post in here as i thought i was going to be referred to the man pages lol

i did manage to find the solution for myself and it definately wasn't an a dim operator error!

apparently there is a bug with my version of (AIX 5.2.003) and this issue was fixed in 5.2.004.

basically if the block_size of the tape device is set to 512 the mksysb rewinds itself after each writing phase and overwrites what it just saved. this meant that only the final phase of the backup was effectively being saved.

changing the block size of the tape device to 1024 solved my problem. i now have bootable backup tapes with a savevg appended.

thanks for your help,

james.
 

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AMVERIFY(8)						      System Manager's Manual						       AMVERIFY(8)

NAME
amverify - check an Amanda tape for errors SYNOPSIS
amverify config [ slot [ runtapes ] ] DESCRIPTION
Amverify reads an Amanda format tape and makes sure each backup image can be processed by amrestore and, if possible, the appropriate restore program (e.g. tar). Amverify runs amrestore on each file of the tape and pipes the output to a restore program (if available) with an option to create a cata- logue of the backup. The catalogue itself is discarded. Only the success or failure of the operation itself is reported. If the backup image cannot be processed by the restore program, e.g. if it was written on a different operating system, the image is sent through dd to /dev/null. This still determines if the tape is readable, but does not do any internal consistency check on the image. If config is set up to use a tape changer, the slot argument may be used to choose the first tape to process. Otherwise, the current slot is used. The runtapes configuration parameter determines how many tapes are processed unless it is specified on the command line. See the amanda(8) man page for more details about Amanda. AUTHOR
Axel Zinser <fifi@icem.de> SEE ALSO
amrestore(8), amanda(8), amverifyrun(8) AMVERIFY(8)
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