Hello,

Couple weeks ago we had a vault disk failure on Clariion cx-380. As a result of it, write cache was disabled automatically. The big noticable impact was on oracle side. The rman database backup slowed down considerably. After the disk was replaced and rebuild was completed, write cache was enabled automatically. However, database backup is still very slow. What could be the reason for this ? It used to take 12hours for backup, now it takes 36 hours.

Host : 

Solaris 5.9

Oracle 10.0.2

Storage :

Clariion CX-380

Currently write cache and read cache are enabled.

SPs have been rebooted, host has been rebooted, oracle has been restarted, asm as been restarted, currently no tresspassed luns, no errors on storage, no errors on host, all power paths are active.

Thanks