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Date:      Tue, 23 Jul 2013 15:54:57 -0700
From:      aurfalien <aurfalien@gmail.com>
To:        FreeBSD Questions <freebsd-questions@freebsd.org>
Subject:   TRIM and changing mount options
Message-ID:  <316706C7-F038-4110-BB36-8EDFF9DC6A6B@gmail.com>

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Hi,

I've some what blindly followed a how to on installing FreeBSD 9.1 on a =
ZFS mirror.

My typing is horrid so I simply ssh'd to a live CD env and pasted line =
by line as per the how to found here;

=
http://wp.strahlert.net/wordpress/zfs-2/installing-freebsd-9-1-using-root-=
on-zfs-and-gpt-disks/

All is well, no issues with replacing disks, testing failures etc...

But seeing that my system drives are SSDs, I thought to perhaps add =
noatime, etc... to avoid slow downs common in excessive SSD usage.

However my fstab is only mounting swap partitions and I have no idea how =
my file system is being mounted :)

Also, I would like to use tunefs in finding if I have TRIM enabled as I =
did load it via boot.conf

I kinda feel like I'm willy nilly adding load lines w/o seeing if I =
actually have the TRIM patch installed :)

At any rate, could some one;

a) Explain how I am loading my file system as I'm used to fstab?
b) How to run tunefs on my zroot
c) How to determine if I actually have the needed TRIM support in my =
kernel

I'm running 9.1 with the latest updates via freebsd-update =
(fetch/install).

Thanks in advance,

-airf

"I know enough to kill a system"





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