Has anyone else noticed this? Doing "systat -u 10" during a dump I see occasional obviously bogus values in the Tape Write column, e.g.
CPU Total Net kB/s Disk kB/s Tape kB/s Cache Cache CP CP Disk ops/s in out read write read write age hit time ty util 15% 12 7 5 6844 66 0 6438 >60 99% 3% T 44% 18% 3 1 2 8172 0 0 7651 >60 99% 0% - 51% 21% 43 597 617 7822 83 0 6645 >60 99% 3% T 51% 14% 12 3 8 5112 917 0 4511 >60 98% 13% T 32% 19% 12 8 3 8530 78 0 1844674406949348 >60 100% 6% T 61% 20% 7 4 4 8344 83 0 7490 >60 100% 12% T 64% 21% 6 2 10 8671 81 0 7858 >60 100% 7% T 65% 18% 8 4 14 7621 86 0 6896 >60 99% 5% T 57%
I think that this has been happening only since I upgraded to 6.1.2.
The observed frequency seems to be compatible with the hypothesis that the bogus values occur each time another 4GB has been written to the tape.
Chris Thompson University of Cambridge Computing Service, Email: cet1@ucs.cam.ac.uk New Museums Site, Cambridge CB2 3QH, Phone: +44 1223 334715 United Kingdom.