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jsaxx

Member

Registered: 2022-11-07

Posts: 19

[SOLVED] fstrim not working (does not persist reboot)

fstrim command does not work as intended on my storage.

When running fstrim -av it will return (xx bytes) trimmed on /dev/xxx but after reboot, re-running fstrim -av will return the same amount of bytes trimmed on the device (as if the trim operation did not persist the reboot).

Details below.

This is what happens when running fstrim>reboot>fstrim:

$ sudo fstrim -av
/mnt/Games: 634.4 GiB (681181589504 bytes) trimmed on /dev/md0
/boot: 213.4 MiB (223723520 bytes) trimmed on /dev/sda1
/: 85.7 GiB (92067831808 bytes) trimmed on /dev/sda3

$ sudo fstrim -av
/mnt/Games: 1.6 GiB (1736323072 bytes) trimmed on /dev/md0
/boot: 213.4 MiB (223723520 bytes) trimmed on /dev/sda1
/: 271.3 MiB (284524544 bytes) trimmed on /dev/sda3

$ reboot

$ sudo fstrim -av
/mnt/Games: 634.4 GiB (681181589504 bytes) trimmed on /dev/md0
/boot: 213.4 MiB (223723520 bytes) trimmed on /dev/sda1
/: 85.7 GiB (92067831808 bytes) trimmed on /dev/sda3

More info:

$  lsblk --discard
NAME    DISC-ALN DISC-GRAN DISC-MAX DISC-ZERO
sda            0      512B       2G         0
├─sda1         0      512B       2G         0
├─sda2         0      512B       2G         0
└─sda3         0      512B       2G         0
sdb            0        0B       0B         0
└─sdb1         0        0B       0B         0
  └─md1        0        0B       0B         0
sdc            0      512B       2G         0
└─md0          0      512B       2G         0
sdd            0        0B       0B         0
└─sdd1         0        0B       0B         0
  └─md1        0        0B       0B         0
sde            0      512B       2G         0
└─md0          0      512B       2G         0

$ cat /proc/mdstat
Personalities : [raid0] [raid1]
md1 : active raid1 sdd1[1] sdb1[0]
      488251904 blocks super 1.2 [2/2] [UU]
      bitmap: 0/4 pages [0KB], 65536KB chunk

md0 : active raid0 sde[1] sdc[0]
      968694272 blocks super 1.2 512k chunks

unused devices: <none>

$ cat /etc/fstab
# Static information about the filesystems.
# See fstab(5) for details.

# <file system> <dir> <type> <options> <dump> <pass>
# Swap
UUID=fe20320c-29c1-4906-a4a3-ee724a45f1a3       none            swap            defaults        0 0
# Boot/EFI
UUID=3B2A-57B7 /boot vfat rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,utf8,errors=remount-ro 0 2
# Computer
UUID=b4b8e732-c30f-480c-b597-2b497898c712 / ext4 rw,relatime 0 1
#Games
LABEL=Games /mnt/Games auto nosuid,nodev,nofail,x-gvfs-show 0 0
# Storage
LABEL=Storage /mnt/Storage auto nosuid,nodev,nofail,x-gvfs-show 0 0

Last edited by jsaxx (2023-01-06 20:33:54)

Head_on_a_Stick

Member

From: The Wirral

Registered: 2014-02-20

Posts: 9,003

Website

Re: [SOLVED] fstrim not working (does not persist reboot)

https://unix.stackexchange.com/question … 665#371665

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Jin, Jîyan, Azadî

jsaxx

Member

Registered: 2022-11-07

Posts: 19

Re: [SOLVED] fstrim not working (does not persist reboot)

https://unix.stackexchange.com/question … 665#371665

That explains it, thank you!