** Tags added: precise
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Title:
TRIM support not enabled for SSDs
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As #10 says, there is a negative performance impact of mounting with
discard. Personally I use fstrim in crontab instead.
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Title:
TRIM support not
Looking at the initial commit for TRIM in the kernel I can see that it's
calling ata_id_has_trim() and passing in the disks ID. This looks like
it filters disks that don't support TRIM.
You can see the commit for trim in the 2.6.33 kernel here:
http://git.kernel.org/?p=linux/kernel/git/torvalds/l
There is a negative performance using TRIM / DISCARD when deleting a
folder with a load of small files
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Title:
TRIM support not enabled for SSDs
I researched it about a year ago now for work and the kernel should
probe the hardware to see if it supports TRIM. If it doesn't then it
won't use it. It shouldn't cause any problems for people. If anyone
knows differently then let me know.
I've run disks with the discard option on normal rotation
> feasty
Ok, assuming that this command will detect an SSD with good accuracy, another
question is whether enabling TRIM for all SSDs would cause problems for some
(e.g. unsupported SSD or server/enterprise SSD).
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Bugs, whi
You can detect the disk type from the following file:
/sys/block/sda/queue/rotational
Just cat it. 1 means it's rotational, 0 means it is an SSD. Just change
sda to be the disk you want to inspect. You will also need root
privileges to view the file.
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I don't have a concrete solution, but gnome-disk-utility (palimpsest),
for instance, somehow recognizes that my hard drive is a SSD. This leads
me to believe that there is an instruction set already available with
which the type of a hard drive can be identified.
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How to reliably detect SSD?
Is there a performance impact on enabling TRIM for non-SSD drives?
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Title:
TRIM support not enabled for SSDs
To manag
Yeah I hope the discard command will be enabled by default in 12.10.
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Title:
TRIM support not enabled for SSDs
To manage notifications about this
The only reason we are asking this to be fixed is because some people
are uncomfortable using the terminal to enable TRIM on their SSD.
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Title:
TR
This bug affects me too. What I expect to happen when I install Ubuntu
12.04 is that it will support the TRIM by automatically entering the
'discard' option in the fstab file. I know you can do this manually but
a lot of end-users do not even know how to deal with a terminal. This is
a CRITICAL bug
** Changed in: partman-target (Ubuntu)
Importance: Undecided => Medium
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Title:
TRIM support not enabled for SSDs
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: partman-target (Ubuntu)
Status: New => Confirmed
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