[OmniOS-discuss] Slow scrub on SSD-only pool

[Richard Elling]

> On Apr 22, 2016, at 10:28 AM, Dan McDonald <danmcd at omniti.com> wrote:
> 
> 
>> On Apr 22, 2016, at 1:13 PM, Richard Elling <richard.elling at richardelling.com> wrote:
>> 
>> If you're running Solaris 11 or pre-2015 OmniOS, then the old write throttle is impossible
>> to control and you'll chase your tail trying to balance scrubs/resilvers against any other
>> workload. From a control theory perspective, it is unstable.
> 
> pre-2015 can be clarified a bit:  r151014 and later has the modern ZFS write throttle.  Now I know that Stephen is running later versions of OmniOS, so you can be guaranteed it's the modern write-throttle.
> 
> Furthermore, anyone running any OmniOS EARLIER than r151014 is not supportable, and any pre-014 release is not supported.

Thanks for the clarification Dan!
 -- richard