Wait Event:
log file parallel write
Possible Causes:
- LGWR waits while writing the contents of the redo log buffer cache to the online log files on the disk
- I/O wait on subsystem holding the online redo log files
ACTIONS:
- Reduce the amount of redo being generated
- Do not leave tablespaces in hot backup mode for longer than
necessary - Do not use RAID 5 to redo log files
- Use faster disks to redo log files
- Ensure that the disks holding the archived redo log files and the online redo log files are separate so as to avoid contention
- Consider using NOLOGGING or UNRECOVERABLE options in SQL statements.
REMARKS:
- Reference Note# 34583.1
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