Best practice pool/vdev backup +plex

[Swarten]

Hello,

I'm planning on installing truenas on my pc and act as a "backup server". Got lots of photos and videos (around 5tb atm) that I want to backup. I think I have finally settled with truenas as OS.
Thinking of installing 6x4tb in raidz2. And 2 x ssd for boot. (good or bad?)
So about 14tb of storage.

But I'm also thinking of installing plex and running some torrents on the truenas server. So I was thinking how I should do with my hdd setup for this. I might have read somewhere that zfs is not so good with "allocating" torrents?

If I do 6x4tb raidz2 for my backup, can I add a couple of other hdd/ssd to be used just for my plex and torrents? Im still learning about best practice for pool, vdev, raidz etc.

Thanks!

 

[sretalla]

6x4tb in raidz2. And 2 x ssd for boot. (good or bad?)

Fine.

I might have read somewhere that zfs is not so good with "allocating" torrents?

Indeed you might have. CoW (Copy on Write) isn't a great match for the way Torrents work, but turning off the pre-allocation of the file can help a little. (but you will still need to watch out for high fragmentation in the pool)

If I do 6x4tb raidz2 for my backup, can I add a couple of other hdd/ssd to be used just for my plex and torrents?

Sure. No problem.

 

[Swarten]

Fine.


Indeed you might have. CoW (Copy on Write) isn't a great match for the way Torrents work, but turning off the pre-allocation of the file can help a little. (but you will still need to watch out for high fragmentation in the pool)


Sure. No problem.

The question is maybe, if I can use my pool/vdev(?) 6x4tb raidz2 separately from my other drives where I want to put the plex and torrenting.

So I don't interfere with my backup drives. As they will hold important photos and videos.

Don't know if I misunderstood something I read before about, if one disk in one pool crash, that all my pool will fail..?

I know I'm having a hard time with the terminology. I've installed TN core on an old machine to learn before I go all in.