Hello all...
I think all of you agree that "performance" is a great topic in NFS.
So, when we talk about NFS and ZFS we imagine a great combination/solution.
But one is not dependent on another, actually are two well distinct
technologies. ZFS has a lot of features that all we know about, and "maybe",
all of us want in a NFS share (maybe not). The point is: Two technologies with
diferent priorities.
So, what i think is important, is a "document" (here on NFS/ZFS discuss), that
lists and explains the ZFS features that have a "real" performance impact. I
know that there is the solarisinternals wiki about ZFS/NFS integration, but
what i think is really important is a comparison between Linux and Solaris/ZFS
on server side.
That would be very useful to see for example, what "consistency" i have with
Linux and (XFS, ext3, etc), with "that" performance. And "how" can i configure
a similar NFS service on solaris/ZFS.
Here we have some information about it:
http://blogs.sun.com/roch/entry/nfs_and_zfs_a_fine
but there is no relation with Linux, what i think is important.
What i do mean, is that the people that knows a lot about the NFS protocol,
and about the filesystem features, should make such comparison (to facilitate
the adoption and users' comparison). I think there are many users comparing
oranges with apples.
Another example (correct me if i am wrong), Until the kernel 2.4.20 (at
least), the default export option for sync/async was "async" (in solaris i
think always was "sync"). Another point was about the "commit" operation in
vers2, that was not implemented, the server just reply with an "OK", but the
data was not in stable storage yet (here the ZIL and the roch blog entry is
excellent).
That's it, i'm proposing the creation of a "matrix/table" with features and
performance impact, as well as a comparison with other
implementations/implications.
Thanks very much for your time, and sorry for the long post.
Leal.
This message posted from opensolaris.org
___
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
