Post by Verner KjÃ¦rsgaard
- has anyone tried SUN's ZFS on SuSE? Can it be done, is it at all
- or another Distributed file system. I may need a file system, that will
allow me to add storage ad hoc.
Any hints, links?
I haven't tried, but the only way to use zfs on linux would be through
FUSE, in userland, due to license incompatibility. Aditionaly, zfs is
not a distributed file system (but indeed would let you add storage
later, as it has some sort of pool, like in an lvm volume).
ZFS through FUSE would have worse performance, I guess. It was asked
the advantages of ZFS, and there are lots (check the wikipedia
articles), mainly end-to-end data integrity (imho) and other
functionalities (copy on write, snapshots, no need to format, no need
to fsck, simplified syntax for userland tools, etc). It's only
possible because its layout somewhat breaks the usualy fs layout in
linux, incorporating for example, the raid layer in the filesystem.
This video shows a lot of what it can do:
The closest thing in linux land would be oracle's btrfs, but its beta
or alpha, dunno. Aditionaly ext4 may give you some functionalities
that zfs has (snapshots, copy-on-write).
For distributed file systems you would have to take a look at lustrefs
(also from Sun), IBM's GPFS, Red Hat's GFS, openAFS, it varies a lot
Storage specific filesystems, like SAM-QFS (SUN), ocfs2 (oracle) are
yet another thing, and they are more suitable when there is a SAN.
and http://en.wikipedia.org/wiki/Shared_disk_file_system and others
for a good start
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