TRIM support through ciss

[Steven Hartland]

----- Original Message ----- 
From: "Dmitry Morozovsky" <marck at rinet.ru>
> well, to be a bit more precise: SSDs are split to have mirrored ZIL and 
> splitted L2ARC, and SASes are mirrored in pairs:
> 
> root at briareus:/usr/src# zpool status
>  pool: br
> state: ONLINE
>  scan: scrub repaired 0 in 0h0m with 0 errors on Fri Apr 26 15:29:32 2013
> config:
> 
>        NAME             STATE     READ WRITE CKSUM
>        br               ONLINE       0     0     0
>          mirror-0       ONLINE       0     0     0
>            gpt/br0      ONLINE       0     0     0
...
>        logs
>          mirror-4       ONLINE       0     0     0
>            gpt/br-zil0  ONLINE       0     0     0
>            gpt/br-zil1  ONLINE       0     0     0
>        cache
>          gpt/br-cache0  ONLINE       0     0     0
>          gpt/br-cache1  ONLINE       0     0     0
> 
> errors: No known data errors
> 
> All I need is TRIM support for ZIL and L2ARC...

The important question for this is do your see a supported delete
method for your SSD's?

If the answer is no then you may be out of luck unless there's a FW
upgrade for your controller which fixes that or you can attach them
to a different controller such as on board AHCI?

    Regards
    Steve

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