We have a SunFire X4500 running Solaris 10U5 which does about 5-8k nfs ops of which about 90% are meta data. In hind sight it would have been significantly better to use a mirrored configuration but we opted for 4 x (9+2) raidz2 at the time. We can not take the downtime necessary to change the zpool configuration.
We need to improve the meta data performance with little to no money. Does anyone have any suggestions? Is there such a thing as a Sun supported NVRAM PCI-X card compatible with the X4500 which can be used as an L2ARC? Thanks, Chris
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