A piece of advice with ZFS, get the largest drives you can afford.
Expanding ZFS is painful and it’s wayyyyy easier to just start big then to grow big.
ZFS is also a RAM hog, max out your ram cause that.
If you want to add meta data caches, do it when you first build the array.
The L2-arc cache and SLOG don’t do what you think they will. Make sure you really understand them before you throw them on. They’re easy to take off though.
Last but certainly not least, ZFS is a money sink. It was made for enterprise solutions, meaning it benefits from more money being thrown at it than say XFS. Figure out what’s good enough and live with it.
That is a fair point, earlier I considered OpenMediaVault with a softraid and an LVM on top if it, but I take a lot of photos and have already seen bitrot in them, so I’d rather have some insurance for that.
I will in general avoid expanding filesystems, and simply decide that when I need more space to start building a new NAS, copy the data to it and repurpose the old NAS with larger drives or as a test machine.
Though this depends on how financially stable I am, I tend to buy parts over time…
A piece of advice with ZFS, get the largest drives you can afford.
Expanding ZFS is painful and it’s wayyyyy easier to just start big then to grow big.
ZFS is also a RAM hog, max out your ram cause that.
If you want to add meta data caches, do it when you first build the array.
The L2-arc cache and SLOG don’t do what you think they will. Make sure you really understand them before you throw them on. They’re easy to take off though.
Last but certainly not least, ZFS is a money sink. It was made for enterprise solutions, meaning it benefits from more money being thrown at it than say XFS. Figure out what’s good enough and live with it.
That is a fair point, earlier I considered OpenMediaVault with a softraid and an LVM on top if it, but I take a lot of photos and have already seen bitrot in them, so I’d rather have some insurance for that.
I will in general avoid expanding filesystems, and simply decide that when I need more space to start building a new NAS, copy the data to it and repurpose the old NAS with larger drives or as a test machine.
Though this depends on how financially stable I am, I tend to buy parts over time…