[OmniOS-discuss] Status of TRIM support?

[Ian Collins]

Saso Kiselkov wrote:
> Hi Dan,
>
> First off, the Samsung 840 Pro apparently doesn't have power loss
> protection, so DON'T use it for slog (ZIL). Use some enterprise-class
> SSD that has proper protection of its DRAM contents. Even better, if you
> have the cash to spend, get a ZeusRAM - these are true NVRAM devices
> with extremely low latency.
>
> If you use an SSD for slog, do a secure erase on it and then partition
> it so that you leave something like 1/3 of it unused and untouched by
> the OS. Evidence suggests that that might dramatically improve write
> IOPS consistency:
> http://www.anandtech.com/show/6489/playing-with-op

Reading there I'd say the conclusion is "leave  something like 1/3 of it 
unused and untouched unless you are using an S3700" :)

I'm glad I am...

-- 
Ian.