dwm%asbf-cs.huachuca-em.arpa@huachuca-em.arpa (Duke Mangum) (05/11/88)
I hope someone out there has an answer for this one. I'm the SA for a Unisys (Sperry) 5000/80. Last week I went to do some volcopies for file systems on the 5000. The first file system I intended to volcopy called for three reels. I used the following labelit command to put internal labels on the tapes : labelit /dev/rmt/c0d0h work 0272 -n (different tape #'s for next 2 tapes, of course) This worked as wxpected. After labelling the three tapes, I then used labelit as follows to verify the labels : labelit /dev/rmt/c0d0h Again, everything was as expected. The next file system called for two reels. I used labelit as follows to label the two reels : labelit /dev/rmt/c0d0h sup 8019 -n (different tape # for 2nd tape, of course). Next, I used labelit as follows to verify the labels : labelit /dev/rmt/c0d0h *this* time, however, at the end of the displayed label, I got the following : "illegal blocksize=512" After several tries with different tapes, etc., I continued to get the same results. I decided to go ahead and try the volcopy to see what would happen. At the end of the volcopy, the following was displayed : END 100048 blocks This volcopy was done on a file system whose partition size is 50024 blocks. The indications are that the volcopy was done using blocksize of 512 instead of 1024 blocks. I have yet to dare to try and restore this file system. If memory serves me correctly, we had this problem on our Gould 6032 about two years ago. Unfortunately, I don't remember how we corrected it. I would *really* appreciate any help anyone may be able to offer ! Duke W. Mangum ( dwm@asbf-cs.huachuca-em.arpa ) (if that doesn't work, try : dwm%asbf-cs.huachuca-em.arpa@HUACHUCA-EM.ARPA)