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I have installed 32 bit tde q4os on ssd with xfs.
how to check if TRIM is enabled?
Last edited by sagsaw (2023-03-07 06:23)
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As Q4OS is essentially Debian, it should be the same as for 32bit Debian version.
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Debian by default supports auto trim.
Q4OS Aquarius 5.x KDE HP Elitedesk 705 G4 Mini - Ryzen 5 2400g, 16gb ddr4, 1tb m.2 nvme ssd
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ok is it enabled by default on install? did not see any entry discard or noatime in fstab
also did not see any cron job fstrim
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Found a service called fstrim.service that runs weekly
It seems fstrim.service is enabled which periodically runs fstrim on mounted filesystems every Monday it seems at a specified time. But if machine is off then you miss it unless persistent=true is set in the fstrim.service
Last edited by sagsaw (2023-03-07 06:49)
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The more correct way to do this is to create an override conf file.
sudo systemctl edit --full fstrim.timer
That will open fstrim.timer in nano. I like mine to run every day at startup.
[Unit]
Description=Discard unused blocks daily
Documentation=man:fstrim
[Timer]
OnCalendar=daily
AccuracySec=1h
Persistent=true
[Install]
WantedBy=timers.target
Ctrl O will save that to /etc/systemd/system/.#fstrim.timernnnnnxxxxx
Ctrl X to exit.
Editing the service files and timer files direct is a bad idea because these can get replaced during updates. The override file will not be affected by any changes to the originals.
As regards noatime - this is my fstab if it helps
UUID=088038b4-cea2-4b6b-b02d-ee11bd9b850a / ext4 defaults,noatime 0 1
UUID=d1d4455c-269f-4859-92d9-8c8936bff04c swap swap defaults,noatime 0 2
UUID=b45e6d58-80ae-4fba-9cee-8a95c69952af /home ext4 defaults,noatime 0 2
tmpfs /tmp tmpfs defaults,noatime,mode=1777 0 0
Last edited by bin (2023-03-07 07:37)
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ok thanks. I read somewhere that once a week running fstrim is recommended for longer ssd life especially if not much is being deleted and rewritten daily.
Also read that using discard in fstab is not recommended as again it will cause too much ssd writes everytime something is deleted.
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Well if it's any help I'm still running an Intel SSD from 2010 with this arrangement. OK it's getting to the end of its useful life but still going strong. Agreed discard is a bad idea - that's why I use noatime instead. I prefer fstrim daily as I do d/l and erase a fair number of distro iso files for testing and if left too long it then takes an age to run.
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