On Wed, November 21, 2012 16:06, Jim Klimov wrote:
> On 2012-11-21 21:55, Ian Collins wrote:
>> I can't help thinking these drives would be overkill for an ARC device.
>> All of the expensive controller hardware is geared to boosting random
>> write IOPs, which somewhat wasted on a write slowly, read often device.
>> The enhancements would be good for a ZIL, but the smallest drive is at
>> least an order of magnitude too big...
> I think, given the write-endurance and powerloss protection, these
> devices might make for good pool devices - whether for an SSD-only
> pool, or for an rpool+zil(s) mirrors with main pools (and likely
> L2ARCs, yes) being on different types of devices.

Or partition them.

While general best practices encourage using the whole device for either
L2ARC or ZIL, it doesn't always have to be the case.

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