Installing PBS on Single NVME Disk: ZFS vs. EXT4 vs XFS?

Sep 1, 2022
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Hello,

I'm getting ready to install PBS for the first time. This machine only has a single NVME slot, so I'm using that for boot.

I know that the boot filesystem is completely independent of my storage filesystem (that is, I could use ext4 for the boot drive and ZFS mirroring for the actual backup storage).

However, I'm not sure what type of filesystem to use for the boot drive. I have 64 GiB of RAM, so I'm not worried about ZFS not having enough to work well.

My inclination is to use ZFS in a single disk mirror, as it's my understanding that the way it is overall more resistant to corruption than ext4. I think (I'm very new at this) that I'd also have the benefit of snapshots/replication on the boot drive to be able to restore the PBS boot partition quickly in the event I need to rebuild the system.

Is that the way to go? Or should I just stick with ext4?

I'm completely unfamiliar with XFS, so I have no idea how it fits into all this.
 

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