When will we see TRIM support for GELI volumes ?

[Steven Hartland]

----- Original Message ----- 
From: "Lev Serebryakov" <lev at FreeBSD.org>
To: "Pawel Jakub Dawidek" <pjd at FreeBSD.org>
Cc: <freebsd-fs at freebsd.org>
Sent: Tuesday, March 19, 2013 6:56 PM
Subject: Re: When will we see TRIM support for GELI volumes ?


> Hello, Pawel.
> You wrote 19 марта 2013 г., 12:27:32:
>
> PJD> This is not what I see. On one of my SSDs in my laptop I've two
> PJD> partitions, both running ZFS, but one of them on top of GELI.
> PJD> I don't use ZFS TRIM yet, as I see no slowdown whatsoever.
> It depends on your SSD controller and write rate. SandForce-based SSD
> degrades badly without TRIM and can not recover performance by
> themselves if here is a lot of writes. But modern SSD on Marvell,
> Indilinx and LAMP-based SSD restore write performance after some idle
> time, not so effectively as with TRIM, but to very good level. And
> SF-2281 based SSD sucks in this area badly.

Also make sure your running 503 FW or above on controllers running
5 series FW otherwise TRIM will be broken :(

    Regards
    Steve 


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