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To: freebsd-hackers@freebsd.org
Subject: Re: How to use trim command ?,Re: How to use trim command ?
From: Masachika ISHIZUKA <ish@amail.plala.or.jp>
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>>   I misunderstood trim was equivalent to fstrim in linux.
>>   I undotstood that the trim command is the SSD bulk erase tool.
> 
> If you want to enable TRIM on a UFS filesystem, tunefs is the command
> you are looking for.

  Thank you for mail.

  I'm using 'tunefs -t enable /dev/ada0pXX', that is equivalent
to 'discard' in fstab on linux.
  
> The equivalent to fstrim for UFS is fsck_ffs -E:

  I think 'fsck_ffs -E' is not suitable for daily midnight cron
job.
-- 
Masachika ISHIZUKA