Date: Thu, 6 Jun 2013 00:54:58 +0100 From: "Steven Hartland" <killing@multiplay.co.uk> To: "Dmitry Morozovsky" <marck@rinet.ru> Cc: freebsd-stable@freebsd.org Subject: Re: TRIM support through ciss Message-ID: <DD624EFFCB7E4C94A46FE5E1F6A16A50@multiplay.co.uk> References: <alpine.BSF.2.00.1306060157240.48048@woozle.rinet.ru> <22BEEC35F8964CACB8E625DA3068A12F@multiplay.co.uk> <alpine.BSF.2.00.1306060253430.48048@woozle.rinet.ru>
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----- Original Message -----
From: "Dmitry Morozovsky" <marck@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@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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