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A successful 1/4" cartridge tape backup on a Basic 4 was cause for a beer.
IBM's early AS/400 reel-to-reel backups used to have a bar graph on the
device itself that give an estimate on how much tape was used as it went
along. I REALLY miss that. Well, not so much with tape libraries now.
But back when I had to physically mount tapes when each was full...
Better get more tapes ordered up.
Take the clear option on PRTERRLOG to reset your statistics. And TRY to
use separate volume ids. Then you can see how much is written to each.
Although, even with the same backup you will see wide discrepancies. Most
of that is because it displays how much data it was BEFORE compressing out
to tape. DB2 compresses different than other areas of the IFS.
Volume ---Temporary Errors--- --------M Bytes--------
ID Read Write Read Written
0 0 1 1
BR0095 0 0 1 506933
BR0104 0 0 1 450784
BR0106 0 0 1 483953
BR0181 0 0 1 2448038
181 was the first tape of the full system save. It compressed the hell
out of DB2.
Rob Berendt
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