Exadata: ASM Instance hangs with RBAL process waiting on "NO FREE BUFFER"
(Doc ID 1351531.1)
Last updated on APRIL 12, 2022
Applies to:
Oracle Exadata Storage Server Software - Version 11.2.2.2.0 and laterInformation in this document applies to any platform.
Symptoms
You are on Exadata and getting a hang scenario with I/O bottleneck
On closer inspection via AWR reports or other methods you may also find that the archive process is hung.
This issue is intermittent
i.e. stays for 5 minutes & once the archiving is done , it comes back to normal state
Changes
None known:
There had bee some previous Flash Disk failures but unable to make a determination that this had any relevance or not. As the disks we replaced, we think not.
Cause
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