Hello
I have setup my freeNAS system and I am quite happy with it so far, I use 2 x 4TB drives in a mirror setup. I went through the cyberjock's ZFS guide and I stumbled upon this passage:
"When a VDev can no longer provide 100% of its data using checksums or mirrors, the VDev will fail. If any VDev in a zpool is failed you will lose the entire zpool with no chance of partial recovery. (Read this again so it sinks in)"
I have trouble understanding this. For instance I plan on using a smaller single disk with ZFS on it for data I really don't care about much, I deliberately take drive failure as an option in this case.
I will perform regular scrubs on this single drive, what happens if the scrub detects some checksum irregularities for some files? According to the statement above this sounds disastrous.
Also does a checksum error mean the file is not accessible anymore?
I don't need any features besides scrubs of ZFS, is ZFS really a good option for me then? It seems like some overkill and in case of unexpected disk/boot/mount troubles I would have to go through quite some hassle compared to an NTFS disk that I could just plug into someones PC and restore files. I just want a simple reliable storage for my mirror array and less reliable storage for a smaller disk.
Thank you
I have setup my freeNAS system and I am quite happy with it so far, I use 2 x 4TB drives in a mirror setup. I went through the cyberjock's ZFS guide and I stumbled upon this passage:
"When a VDev can no longer provide 100% of its data using checksums or mirrors, the VDev will fail. If any VDev in a zpool is failed you will lose the entire zpool with no chance of partial recovery. (Read this again so it sinks in)"
I have trouble understanding this. For instance I plan on using a smaller single disk with ZFS on it for data I really don't care about much, I deliberately take drive failure as an option in this case.
I will perform regular scrubs on this single drive, what happens if the scrub detects some checksum irregularities for some files? According to the statement above this sounds disastrous.
Also does a checksum error mean the file is not accessible anymore?
I don't need any features besides scrubs of ZFS, is ZFS really a good option for me then? It seems like some overkill and in case of unexpected disk/boot/mount troubles I would have to go through quite some hassle compared to an NTFS disk that I could just plug into someones PC and restore files. I just want a simple reliable storage for my mirror array and less reliable storage for a smaller disk.
Thank you