TRIM or no TRIM?

[Steven Hartland]

9.1 is a bit old, 9.2-BETA1 or 9/stable will be able to tell you if
indeed your SSD is reporting TRIM via:
camcontrol identify <disk>

    Regards
    Steve
----- Original Message ----- 
From: "Karl Pielorz" <kpielorz_lst at tdx.co.uk>
To: <freebsd-geom at FreeBSD.org>
Sent: Wednesday, July 24, 2013 9:08 AM
Subject: TRIM or no TRIM?


> 
> Hi,
> 
> I've got a 9.1-RELEASE-p4 amd64 system, on a SuperMicro board with:
> 
> ahci0: <Intel ICH8 AHCI SATA controller> port 
> 0xf070-0xf077,0xf060-0xf063,0xf050-0xf057,0xf040-0xf043,0xf000-0xf01f mem 
> 0xdfa22000-0xdfa227ff irq 19 at device 31.2 on pci0
> 
> I'm using a graid RAID1 array comprising of two INTEL SSDSA2CW160G3's with 
> a couple of file systems on it.
> 
> I've used 'fsck_ffs -E' on the filesystems, rebooted as single user and 
> done 'tunefs -t enable' for both file systems.
> 
> On a subsequent reboot I get:
> 
> "
> WARNING: /: TRIM flag on fs but disk does not confirm that it supports TRIM
> WARNING: /usr3: TRIM flag on fs but disk does not confirm that it supports 
> TRIM
> "
> 
> Is TRIM supported on this configuration? - Is there any way of telling if 
> it's actually working?
> 
> Thanks,
> 
> -Karl
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