I have a 450 server that uses a DLT IV tape unit to backup files using
ufsdump (Level 0 for weekly). The system is running Oracle.
The odd thing is: about 3 weeks ago, a full system backup (Oracle
shutdown, of course) runs for 3 1/2 hours max. Now it is 6 hours
without the database size changing!
The only thing that changed was the addition of a file system to backup
- /opt (around 200 mega bytes). Currently, there are 12 filesystems to
backup versus the original 11 filesystems. Oddly, the throughput has
gone down by 2/3 (6000+ kbytes/sec originally to 2000+ kbytes/sec) for
the Oracle filesystems. Again, there were no increases in the database
Any idea on what is going on? Where to start troubleshooting?