On Aug 11, 2011, at 1:16 PM, Ray Van Dolson wrote:

> On Thu, Aug 11, 2011 at 01:10:07PM -0700, Ian Collins wrote:
>>  On 08/12/11 08:00 AM, Ray Van Dolson wrote:
>>> Are any of you using the Intel 320 as ZIL?  It's MLC based, but I
>>> understand its wear and performance characteristics can be bumped up
>>> significantly by increasing the overprovisioning to 20% (dropping
>>> usable capacity to 80%).
>> A log device doesn't have to be larger than a few GB, so that shouldn't 
>> be a problem.  I've found even low cost SSDs make a huge difference to 
>> the NFS write performance of a pool.
> We've been using the X-25E (SLC-based).  It's getting hard to find, and
> since we're trying to stick to Intel drives (Nexenta certifies them),
> and Intel doesn't have a new SLC drive available until late September,
> we're hoping an overprovisioned 320 could fill the gap until then and
> perform at least as well as the X-25E.

The 320 has not yet passed qualification testing at Nexenta.
 -- richard

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