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Adding DAS to /etc/fstab

You may want to automatically mount your DAS during reboots (e.g., `reboot`, `shutdown -r`, `systemctl reboot`). In these cases, the host will not be released and your DAS will remain intact. However, for safety purposes we recommend using the following `/etc/fstab` entry.

# device    mount                           fs-type      options                                       dump pass
/dev/vdc    /home/ubuntu/direct-attached    ext4         defaults,nofail,x-systemd.device-timeout=0    0    2

Explanation

  • device -`/dev/vdc`

  • mount - `/home/ubuntu/direct-attached` (example)

  • fs-type - ext4 (example)

  • options:

    • defaults - start with the filesystem defaults

    • no-fail - DAS volume cannot block system boot

    • x-systemd.device-timeout=0 - do not wait on filesystem during boot

  • dump (0) - do not run backup

  • pass (2) - run fsck after boot

The `no-fail` and `x-systemd.device-timeout=0` options are particularly important since stopping and restarting a VM on another host would cause mounting the DAS to fail and block the VM boot process.

Tip

To validate your `/etc/fstab` changes run a `mount -a` before trying a reboot.

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Last updated 4 months ago