Re: Informix tape tar error on IBM RS/6000

Madeline Wu wrote: > > I wanted to reconstruct files system in IBM RS/6000 model 380. > The OS is AIX 3.2.5. The load line of Informix tape is "tar > xvf /dev/rmt0". When I tar the Informix tapes, always got a > message "tar: 0511-169 A directory checksum error on media; > 0 not equal to 13699.". There are 6 tapes got the same error > on Ver AH5.04.UC1 products. > > I checked the tape device setting. The Block size is 0. It's > mean variable length. And I tried "tar xvf /dev/rmt0 -b 0". > The Block size from 0 to 20. No one block size can work. I > tried "cpio -icd < /dev/rmt0". It cannot work too. > > Everyday I made a Achive tape, it is normal. I tar own file > system, it is normal too. > > Last month,I return all tapes to the Informix agent. And I got > new tapes in this month. But the error still happen. What should > I do? Try another command? Or return the tapes again. > > -- > > Madeline Wu from Taiwan........... Madeline You should know 2 things to succesfully complete the job: 1. your device setting (using smit) should be correct. especially compression and block factor should be right 2. the AIX tar command syntax is: tar -xvf ... So: In spite of what is common in the Unix community IBM want us to specify the - sign and if you don't you wil not be properly informed about that under AIX I thing the - informt of your options will do the trick in combination with blockfactor 0 or some factor that equals the size of 20 tar blocks Good luck Gert van Eck