SSD-Trim-Opt where to declare in /etc/fstab ?

whhw44 · 16. Juli 2014

As my NAS is based on debian wheezy, I am testing OMV version 0.5 (squeeze-based) on my notebook. I 'll install OMV on my NAS as soon as wheezy is OMVs standard.

Meanwhile I changed my notebooks HDD into a SSD, copied my partitions, and configured /etc new. All is running well.

But there is one question left: as my SSD supports the TRIM-option, I modified the /etc/fstab of my OMV-installation by adding the option "discard" for the root- and for the swap-partition.

Do I have to add "discard" also to this lines

Code

UUID=.... /media/.... ext4 defaults,nofail,acl,user_xattr,noexec,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vsfv0 0 2
/media/.../name/ /export/share-name none bind 0 0
... next share

Regards H.

tekkb · 16. Juli 2014

Make your system drive line read like so but don't change your uuid number:

Code

UUID=d34839ab-2bvb-7318-5659-jc5h058f43g4 /               ext4 noatime,discard,errors=remount-ro 0       1

whhw44 · 16. Juli 2014

Do I understand you right: its enough to declare my system drive this way, and not adding "discard" to other lines?

Code

UUID=....   /   ext4  errors=remount-ro,discard 0 1

Do you think "noatime" (I know what this means) is really necessary?

Here my /etc/fstab at the moment :

Code

proc            /proc           proc    defaults        0       0
UUID=2f67806c-290c-4af3-8b4a-11edb832765e /               ext3    errors=remount-ro,discard 0 1
UUID=85f743e3-731c-4ead-b30c-c5554e509f35 none            swap    sw,discard                0 0
/dev/scd0       /media/cdrom0   udf,iso9660 user,noauto     0       0
# >>> [openmediavault]
#UUID=7236db9f-32f9-469e-bef4-783d3d960cff /media/7236db9f-32f9-469e-bef4-783d3d960cff ext4 defaults,nofail,acl,user_xattr,noexec,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0 0 2
UUID=2dca42ec-aa96-4794-a4a9-8886e9441fea /media/2dca42ec-aa96-4794-a4a9-8886e9441fea ext4 defaults,nofail,acl,user_xattr,noexec,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0 0 2
/media/2dca42ec-aa96-4794-a4a9-8886e9441fea/archive-1/ /export/FG-archive-1 none bind 0 0
/media/2dca42ec-aa96-4794-a4a9-8886e9441fea/archive-2/ /export/FG-archive-2 none bind 0 0

Couldt you please have a look at it? By the way: I don't know why OMV declared my root-partition as "ext3". Its formatted and obviously seen as "ext4".

Regards H.

tekkb · 16. Juli 2014

This is your system drive:

Code

UUID=2f67806c-290c-4af3-8b4a-11edb832765e /               ext3    errors=remount-ro,discard 0 1

Correct? Why ext3?

So this would be the edit:

Code

UUID=2f67806c-290c-4af3-8b4a-11edb832765e /              ext3 noatime,discard,errors=remount-ro 0       1

whhw44 · 16. Juli 2014

And this is all to declare? No more lines need adding the "discard" option? Even the "swap-partition" not?

Thank your for your interest

whhw44 · 16. Juli 2014

Zitat von "tekkbebe"

... Correct? Why ext3?

I don't know. OMV must have done this.

tekkb · 16. Juli 2014

See above... you had discard but should add the noatime too.

whhw44 · 16. Juli 2014

I'll modify ext3 to ext4 and add noatime to the system drive.

If anything goes wrong I'll return.

Regards H.

tekkb · 16. Juli 2014

No, you only need to adjust the system drive uuid line. Do not mess with swap or any other line. Also, if you are on .5x OMV make sure you upgrade your kernel to backports with the button in OMV Extras.

whhw44 · 17. Juli 2014

Zitat von "tekkbebe"

No, you only need to adjust the system drive uuid line. Do not mess with swap or any other line ...

That's exact what I was asking for. Thank you for your tip.

Zitat von "tekkbebe"

... Also, if you are on .5x OMV make sure you upgrade your kernel to backports with the button in OMV Extras.

I don't know where to find this button. I can't see it anywhere in the web-gui.

Anyway - I think OMV version 0.5.53 with kernel 3.2.0-0.bpo.1-amd64 is right?

WastlJ · 17. Juli 2014

If you have installed OMV-Extras (http://omv-extras.org/simple/i…install-omv-extras-plugin)
You can find this button right on the OMV-Extras page.

whhw44 · 17. Juli 2014

Zitat von "WastlJ"

If you have installed OMV-Extras (http://omv-extras.org/simple/i…install-omv-extras-plugin)
You can find this button right on the OMV-Extras page.

Thank you for helping me. I installed the OMV-Extras and the new kernel. I have now kernel 3.2.0-0.bpo.4-amd64.

I think I am right now.

Regards H.

halfdan · 8. August 2014

Hi all,

if I do a clean install directly on a SSD, do I have to ad

Zitat

noatime,discard

or is it done by OMV during the normal install procedure?

Thanks in advance!
halfdan

davidh2k · 8. August 2014

Should be added by default. You can verify via 'cat /etc/fstab'.

Greetings
David

Solo0815 · 10. August 2014

I had to add it by hand, too. Volker changed the installation to "auto-add" it, maybe I installed it before the change. Hopefully OMV doesn't remove it the next time fstab is saved

mixmaster · 23. September 2015

We are sorry for the bring out this old treeds.

I have just installed on an SSD OMV cleen and in my fstab missing these items.UUID=58943c79-a6c4-47f5-a88b-47c8fd3b7b54

the output of cat /etc/fstab is:

Code

root@NAS3:~# cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda1 during installation
UUID=e7397160-5948-491c-9908-0c32345fe6a8 /               ext4    errors=remount-ro 0       1
# swap was on /dev/sda5 during installation
UUID=73db465c-234c-4dfb-91fa-073ea0b5e75c none            swap    sw              0       0
/dev/sdb1       /media/usb0     auto    rw,user,noauto  0       0
# >>> [openmediavault]
UUID=58943c79-a6c4-47f5-a88b-47c8fd3b7b54 /media/58943c79-a6c4-47f5-a88b-47c8fd3b7b54 ext4 defaults,nofail,user_xattr,noexec,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0,acl 0 2
UUID=dda01f59-c0b5-4387-96c8-8f5443dd8aa1 /media/dda01f59-c0b5-4387-96c8-8f5443dd8aa1 ext4 defaults,nofail,user_xattr,noexec,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0,acl 0 2
192.168.0.102:/volume1/ziel /media/58943c79-a6c4-47f5-a88b-47c8fd3b7b54/NAS nfs intr 0 0
# <<< [openmediavault]

Alles anzeigen

And another question.

The UUID=58943c79-a6c4-47f5-a88b-47c8fd3b7b54 is also an SSD. Must there also an entry to be inserted?

My OMV info:

= OS/Debian information
================================================================================
Distributor ID: debian
Description: Debian GNU/Linux 7 (wheezy)
Release: 7.9
Codename: wheezy

================================================================================
= openmediavault information
================================================================================
Release: 2.1.15
Codename: Stone burner

================================================================================
= Date
================================================================================
Wed Sep 23 15:24:05 CEST 2015

================================================================================
= Locale
================================================================================
de_DE.UTF-8

================================================================================
= System information
================================================================================
Linux NAS3 3.2.0-4-amd64 #1 SMP Debian 3.2.68-1+deb7u4 x86_64 GNU/Linux

thank you

tekkb · 23. September 2015

Before you do this is your system drive SSD or did you just install a data drive that is an SSD???? Whatever drive is an SSD you can add the noatime,discard in the fstab line like below.

Edit this line:

Code

UUID=e7397160-5948-491c-9908-0c32345fe6a8 /               ext4    errors=remount-ro 0       1

Make is look like this. Save it and reboot:

Code

UUID=e7397160-5948-491c-9908-0c32345fe6a8 /               ext4    noatime,discard,errors=remount-ro 0       1

mixmaster · 23. September 2015

@tekkb Thank you for your quick response

Zitat von tekkb

Before you do this is your system drive SSD or did you just install a data drive that is an SSD????

Sorry...I have the wrong UUID reported..of course mean the UUID=e7397160-5948-491c-9908-0c32345fe6a8

I just wanted to make out that when a new installation on a SSD of entry in the fstab is correct.

Was just not so with me.

Zitat von tekkb

Make is look like this. Save it and reboot:

Thank you...Did I then added so.

tekkb · 23. September 2015

Nichts zu danken...

No problem..

Jetzt mitmachen!