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> Earlier you said you had eliminated the ZIL as an
> issue, but one difference
> between the Dell H800 and the LSI HBA is that the
> H800 has an NV cache (if
> you have the battery backup present).
>
> A very simple test would be when things are running
> slow, try disabling
> the ZIL temporarily, to see if that makes things go
> fast.
We'll try that, but keep in mind that we're having the issue even when we READ
from the JBODs, not just during WRITES.
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