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タイトル
Failed systemd units on boot firmware: fstrim.service -
説明
After login to SSB console the following error message appears on a red background:
Failed systemd units on boot firmware: fstrim.service
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原因
To be investigated. -
対策
What is fstrim.service?
Fstrim is used on a mounted filesystem to discard blocks which are not in use by the filesystem.
This is useful for solid-state drives (SSDs) and thinly-provisioned storage.When fstrim.service is effective on SSB?
The fstrim service is running on all SSB appliances even if no SSD device is used.
By default, fstrim runs every week on all mounted file systems. The only SSB appliance where fstrim is effective is a virtual appliance with 'SSD' type virtual disk.How to check if the disk is SSD type?
- Execute the following command in the boot shell.
lsblk -d /dev/sda -o name,rota
# Output of an SSD diskNAME ROTA
sda 0- Check the value of ROTA.
ROTA 0 = SSD
ROTA 1 = HDDWhen fstrim service fails?
The fstrim daemon checks the accessibility of the mounted file systems. In case of any issue fstrim service fails.
These issues mostly indicate a disk or a virtual environment problem.
RESOLUTION
- Check the logs of the fstrim service.
journalctl -u fstrim
fstrim[14854]: fstrim: /mnt/drbd: FITRIM ioctl failed: Input/output errorfstrim[14854]: fstrim: /initrd/mnt: FITRIM ioctl failed: Input/output errorsystemd[1]: fstrim.service: Main process exited, code=exited, status=64/n/asystemd[1]: fstrim.service: Failed with result 'exit-code'.Search for kernel logs in the 'local' logspace with the below search expression.
program:kernel OR program:fstrim
Example logs indicating a disk access issue.
kernel: [2101571.014968] sd 32:0:0:0: timing out command, waited 180s
kernel: [2101571.015024] sd 32:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK
kernel: [2101571.015032] sd 32:0:0:0: [sda] tag#0 CDB: Unmap/Read sub-channel 42 00 00 00 00 00 00 00 18 00
kernel: [2101571.015038] print_req_error: I/O error, dev sda, sector 8440120
fstrim: /mnt/drbd: FITRIM ioctl failed: Input/output error
fstrim: /initrd/mnt: FITRIM ioctl failed: Input/output errorWarning! If there is contstant disk access issue, the disk or the virtual environment must be checked.
- Restart fstrim service in the boot shell.
systemctl restart fstrim
- Check the status of the service.
systemctl status fstrim
If the service still fails, open a support ticket and attached the follwing information:
- Debug bundle
- The logs of the fstrim service
- The output of disk type check command.