> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
> boun...@opensolaris.org] On Behalf Of Roy Sigurd Karlsbakk
> 
> Sorry about the initial post - it was wrong. The hardware configuration was
> right, but for initial tests, I use NFS, meaning sync writes. This obviously
> stresses the ARC/L2ARC more than async writes, but the result remains the
> same.

I'm sorry, that's not correct.  L2ARC is a read cache.  ZIL is used for sync 
writes.  ZIL always exists.   If there is no dedicated ZIL log device, then 
blocks are used for ZIL in the main storage pool.

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