Am 25.10.2013 um 00:47 schrieb John R Pierce pierce@hogranch.com:
On 10/24/2013 2:59 PM, Lists wrote:
(*) ran into a guy who had 100s of zfs 'file systems' (mount points), per user home directories, and was doing nightly snapshots going back several years, and his zfs commands were taking a long long time to do anything, and he couldn't figure out why. I think he had over 10,000 filesystems * snapshots.
Wow. Couldn't he have the same results by putting all the home directories on a single ZFS partition?
I believe he wanted quotas per user. ZFS quotas were only implemented at the file system level, at least as of whatever version he was running (I don't know if thats changed, as I never mess with quotas).
User and group quotas have been possible for some time.
ZFS is cool. But there are a lot of issues and stuff that needs to be tuned but is difficult to find out if it needs to be tuned.
Especially, if you run into performance-problems.
Once you have some experience with it, I recommend reading this blog: http://nex7.blogspot.ch
and of course, the FreeNAS forum, where you can read about stuff like that:
https://bugs.freenas.org/issues/1531
On the surface, ZFS is great. But god help you if you run into problems.