On 09/26/2012 05:08 PM, Matt Van Mater wrote: > I've looked on the mailing list (the evil tuning wikis are down) and > haven't seen a reference to this seemingly simple question... > > I have two OCZ Vertex 4 SSDs acting as L2ARC. I have a spare Crucial SSD > (about 1.5 years old) that isn't getting much use and i'm curious about > adding it to the pool as a third L2ARC device. > > Is there any reason why I technically can't use different capacity and/or > manufacturer SSDs as a single ZFS pool's L2ARC?
No, there isn't. You can do it without problems. > Even if it will work technically, will this configuration negatively impact > performance (e.g. slow down the entire cache to the slowest drive's > performance)? If the added device is slower, you will experience a slight drop in per-op performance, however, if your working set needs another SSD, overall it might improve your throughput (as the cache hit ratio will increase). Cheers, -- Saso _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
