Oracle Solaris ZFS File System (MOSC)

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ZFS_arc_max cache value

edited Aug 15, 2013 3:17PM in Oracle Solaris ZFS File System (MOSC) 9 commentsAnswered
We are running 11g database with memory_target set to 35G and physical memory on the server is 80G.We checked the '/etc/system' and see that zfs_arc_max value is not set so I am assuming it is the default value which is 'physical memory - 1' = 79G.

We are seeing some performance issues with high Kernel CPU utlitsation when we run 'top' command.
We came across some Oracle documentation which says to set the 'ZFS_arc_max' to 'physical memory - Oracle db memory utilization', 

Need to confirm we can set ZFS_arc_max cache value = 45G in our environment ?

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