Last updated on JUNE 26, 2015
Applies to:Oracle Database - Enterprise Edition - Version 18.104.22.168 and later
HP-UX PA-RISC (64-bit)
Database instance startup is much slower after upgraded from pre-11gR2 to 11gR2, likely symptoms are:
- dbw0 high wait on "Disk file operations I/O"
- dbw0 call stack
.. system diskown_partinfo diskown_get_owner skgfrlvmchk ..
.. lstat ftw _devnm diskown_target_path diskown_get_owner skgfrlvmchk ..
- Large number of raw device being used for database
- DBW0 could hold CF enqueue and block others
Sign In with your My Oracle Support account
Don't have a My Oracle Support account? Click to get started
Million Knowledge Articles and hundreds of Community platforms