What is ZFS good for?


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Yeah the title sounds stupid, but I am really puzzled.

Now that zfs is available, I wonder if it is useful for me.

 

But I once bought and installed UNRAID to get rid of any pools and disks depending on each others. I have no mirrored drives, just an array with a bunch of xfs disks and a parity. And a lot of pools with a nvme each (as I said: no mirrors, I prefer backups).

 

So creating a zfs pool and use it inside the array is no option. Or creating zfs pools as single pools is also not wanted.

 

What I really miss on unraid is a functional read cache, so I wonder (and ask here), if it makes sense (and speeds up) creating the array from several independent zfs filesystem (aka: will they create a read cache and speed up unraid???)

 

who can enlight me?

 

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