Setting Trim _AFTER_ a New Install
wblock at wonkity.com
Thu Apr 9 21:27:35 UTC 2015
On Thu, 9 Apr 2015, mfv wrote:
> I've recently installed FreeBSD r10.1 using bsdinstall and then loaded
> a large number of programs and data. After spending considerable time
> on the installation I discovered that my SSD has TRIM which appears
> to be quite useful. After some investigation I understand that it is a
> simple flag that can be set after booting into single user mode.
> I hope my questions are simple:
> If TRIM is enabled will it mess up the disk so that everything has to be
No, it will not harm the data. That said, before running tunefs to
enable it, make a backup. Always make a backup.
> If not, is there anything else I should be aware of?
If you used ZFS-on-root, tunefs(8) and TRIM do not apply. ZFS uses TRIM
natively now, but I'm not sure if that was in 10.1 or only now in
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