> On Fri, 2010-07-23 at 22:20 -0400, Edward Ned Harvey wrote: > > > From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- > > > boun...@opensolaris.org] On Behalf Of Linder, Doug > > > > > > On a related note - all other things being equal, is > there any reason > > > to choose NFS over ISCI, or vice-versa? I'm currently > looking at this > > > > iscsi and NFS are completely different technologies. If > you use iscsi, then > > all the initiators (clients) are the things which format > and control the > > filesystem. So the limitations of the filesystem are determined by > > whichever clustering filesystem you've chosen to implement. > It probably > > won't do snapshots and so forth. Although the ZFS > filesystem could make a > > snapshot, it wouldn't be automatically mounted or made > available without the > > clients doing explicit mounts... > > > > With NFS, the filesystem is formatted and controlled by the > server. Both > > WAFL and ZFS do some pretty good things with snapshotting, > and making > > snapshots available to users without any effort. > > > > _______________________________________________ > > zfs-discuss mailing list > > zfs-discuss@opensolaris.org > > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss > > > > > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss >
> -----Original Message----- > From: zfs-discuss-boun...@opensolaris.org > [mailto:zfs-discuss-boun...@opensolaris.org] On Behalf Of > Garrett D'Amore > Sent: Friday, July 23, 2010 11:46 PM > To: Edward Ned Harvey > Cc: zfs-discuss@opensolaris.org > Subject: Re: [zfs-discuss] NFS performance? > > Fundamentally, my recommendation is to choose NFS if your clients can > use it. You'll get a lot of potential advantages in the NFS/zfs > integration, so better performance. Plus you can serve multiple > clients, etc. > > The only reason to use iSCSI is when you don't have a choice, > IMO. You > should only use iSCSI with a single initiator at any point in time > unless you have some higher level contention management in place. > > - Garrett > > I think there may be very good reason to use iSCSI, if you're limited to gigabit but need to be able to handle higher throughput for a single client. I may be wrong, but I believe iSCSI to/from a single initiator can take advantage of multiple links in an active-active multipath scenario whereas NFS is only going to be able to take advantage of 1 link (at least until pNFS). -Will _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
