Autoraid, bdf and Oracle files

Gurus:

I have an Autoraid on hp-ux 10.20. One filesystem is 16G. There is nothing except Oracle data files on there (besides lost+found). This is a recently created filesystem on recently installed disks. I created 26 tablespaces, and according to bdf I used up 94% of the filesystem. The tablespaces are mostly empty, some data has been loaded, more will be added over the course of a few months. One file per tablespace.

Every night, I do an Oracle cold backup and export (both to another disk - omniback backups are of the other disk at other times). Before and after the Oracle backups I do a bdf. Last Thursday, the disk usage shrunk to 92% sometime during the backup. This has me mystified. I know Autoraid moves stuff around, but could it have come up with 250K blocks doing that? Do I have some potential corrupted db files? How could I tell? Should I even be worrying about this? No complaints in any system or Oracle logs. I don't think there has been anything in lost+found. I've seen bdf take a few minutes to catch up, but never be stable for 2 days then suddenly change its mind.

/dev/vg07/u08 16777216 15646277 1060256 94% /u08

/dev/vg07/u08 16777216 15373733 1315766 92% /u08

jg
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Before you buy. Received on Mon Feb 07 2000 - 11:47:36 CST