Exadata: ASM Instance hangs with RBAL process waiting on "NO FREE BUFFER"
(Doc ID 1351531.1)
Last updated on MARCH 04, 2019
Applies to:Oracle Exadata Storage Server Software - Version 220.127.116.11.0 and later
Information in this document applies to any platform.
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
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.
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