![[H]ard|Forum](/styles/hardforum/xenforo/logo_dark.png){kind=logo}
Openfiler and FreeNAS
- Thread starter k1pp3r
- Start date
Volume as in single disk, or RAID total?
In the first case, the only problem might be the issues with 3TB disks (I need to look again to remember what the exact problem was, but I got the impression you'll be fine as long as you're not booting from it.)
As for RAID total, eh - FreeNAS can be set up with ZFS, which is not going to be a limiting factor.
In the first case, the only problem might be the issues with 3TB disks (I need to look again to remember what the exact problem was, but I got the impression you'll be fine as long as you're not booting from it.)
As for RAID total, eh - FreeNAS can be set up with ZFS, which is not going to be a limiting factor.
Right. ZFS itself is fine (the lowest limit I could find was the 16 exabyte limit for filesystems). I'm not sure about the ZFS implementation in FreeBSD 7.3 (which I think the newest stable FreeNAS is using), but I'd be surprised if had any limits you'd be anywhere near reaching.
ZFS style, you'd want to set it up as one zpool, containing multiple groups of 3-9 disks.
(And do use the 64-bit version and throw as much RAM on it as you can - but you were probably planning to already.)
Oh, and don't take this as a strong recommendation for anything - I haven't actually set up a 65TB raid myself on either system.
ZFS style, you'd want to set it up as one zpool, containing multiple groups of 3-9 disks.
(And do use the 64-bit version and throw as much RAM on it as you can - but you were probably planning to already.)
Oh, and don't take this as a strong recommendation for anything - I haven't actually set up a 65TB raid myself on either system.
Ah. Yes, zpools in ZFS are a software raid solution - it specifically suggests not using it on top of a hardware raid since you get better performance and a bunch of nice features by letting it handle everything from the disk level. That said, ZFS on one or a few large arrays would work.
If you just want to format a huge volume as UFS2, it's got an 8 zettabyte upper limit - but it would take forever and a day to fsck if you fill 64TB with moderately sized files. If it's a modest number of massive files you should be ok.
Since you don't seem to have run into ZFS, it might be interesting to skim through this: Wikipedia article, Sun's presentation, and their rather information-dense best practices guide.
If you just want to format a huge volume as UFS2, it's got an 8 zettabyte upper limit - but it would take forever and a day to fsck if you fill 64TB with moderately sized files. If it's a modest number of massive files you should be ok.
Since you don't seem to have run into ZFS, it might be interesting to skim through this: Wikipedia article, Sun's presentation, and their rather information-dense best practices guide.
Last edited:
In openfiler? Not sure, I'm not familiar with it (or the software it's using).
The only obvious one is common for all software raids, namely that you're not dependent on any specific hardware. (Convenient if you need to recover from a dead controller card in some years and it's hard to get hold of a new one). There might well be other nice things, but as mentioned I don't know.