Re: [zfs-discuss] NFS and ZFS, a fine combination

2007-01-09 Thread Roch - PAE
Dennis Clarke writes: > > > On Mon, Jan 08, 2007 at 03:47:31PM +0100, Peter Schuller wrote: > >> > http://blogs.sun.com/roch/entry/nfs_and_zfs_a_fine > >> > >> So just to confirm; disabling the zil *ONLY* breaks the semantics of > >> fsync() > >> and synchronous writes from the a

Re: [zfs-discuss] NFS and ZFS, a fine combination

2007-01-08 Thread Eric Kustarz
Hans-Juergen Schnitzer wrote: Roch - PAE wrote: Just posted: http://blogs.sun.com/roch/entry/nfs_and_zfs_a_fine Which role plays network latency? If I understand you right, even a low-latency network, e.g. Infiniband, would not increase performance substantially since the main bott

Re: [zfs-discuss] NFS and ZFS, a fine combination

2007-01-08 Thread Roch - PAE
Hans-Juergen Schnitzer writes: > Roch - PAE wrote: > > > > Just posted: > > > > http://blogs.sun.com/roch/entry/nfs_and_zfs_a_fine > > > > > > Which role plays network latency? If I understand you right, > even a low-latency network, e.g. Infiniband, would not increase > perf

Re: [zfs-discuss] NFS and ZFS, a fine combination

2007-01-08 Thread Eric Kustarz
Peter Schuller wrote: http://blogs.sun.com/roch/entry/nfs_and_zfs_a_fine So just to confirm; disabling the zil *ONLY* breaks the semantics of fsync() and synchronous writes from the application perspective; it will do *NOTHING* to lessen the correctness guarantee of ZFS itself, inc

Re: [zfs-discuss] NFS and ZFS, a fine combination

2007-01-08 Thread Dennis Clarke
> Roch - PAE wrote: >> >> Just posted: >> >>http://blogs.sun.com/roch/entry/nfs_and_zfs_a_fine > > Nice article. Now what about when we do this with more than one disk > and compare UFS/SVM or VxFS/VxVM with ZFS as the back end - all with > JBOD storage ? > > How then does ZFS compare as

Re: [zfs-discuss] NFS and ZFS, a fine combination

2007-01-08 Thread Dennis Clarke
> On Mon, Jan 08, 2007 at 03:47:31PM +0100, Peter Schuller wrote: >> > http://blogs.sun.com/roch/entry/nfs_and_zfs_a_fine >> >> So just to confirm; disabling the zil *ONLY* breaks the semantics of >> fsync() >> and synchronous writes from the application perspective; it will do >> *NOTHING* >

Re: [zfs-discuss] NFS and ZFS, a fine combination

2007-01-08 Thread Bill Moore
On Mon, Jan 08, 2007 at 03:47:31PM +0100, Peter Schuller wrote: > > http://blogs.sun.com/roch/entry/nfs_and_zfs_a_fine > > So just to confirm; disabling the zil *ONLY* breaks the semantics of fsync() > and synchronous writes from the application perspective; it will do *NOTHING* > to lesse

Re: [zfs-discuss] NFS and ZFS, a fine combination

2007-01-08 Thread Hans-Juergen Schnitzer
Roch - PAE wrote: Just posted: http://blogs.sun.com/roch/entry/nfs_and_zfs_a_fine Which role plays network latency? If I understand you right, even a low-latency network, e.g. Infiniband, would not increase performance substantially since the main bottleneck is that the NFS server al

Re: [zfs-discuss] NFS and ZFS, a fine combination

2007-01-08 Thread Dennis Clarke
> Roch - PAE wrote: >> >> Just posted: >> >>http://blogs.sun.com/roch/entry/nfs_and_zfs_a_fine > > Nice article. I still need to read all of it .. closely. > Now what about when we do this with more than one disk > and compare UFS/SVM or VxFS/VxVM with ZFS as the back end - all with > JB

Re: [zfs-discuss] NFS and ZFS, a fine combination

2007-01-08 Thread Peter Schuller
> http://blogs.sun.com/roch/entry/nfs_and_zfs_a_fine So just to confirm; disabling the zil *ONLY* breaks the semantics of fsync() and synchronous writes from the application perspective; it will do *NOTHING* to lessen the correctness guarantee of ZFS itself, including in the case of a p

Re: [zfs-discuss] NFS and ZFS, a fine combination

2007-01-08 Thread Darren J Moffat
Roch - PAE wrote: Just posted: http://blogs.sun.com/roch/entry/nfs_and_zfs_a_fine Nice article. Now what about when we do this with more than one disk and compare UFS/SVM or VxFS/VxVM with ZFS as the back end - all with JBOD storage ? How then does ZFS compare as an NFS server ? -

[zfs-discuss] NFS and ZFS, a fine combination

2007-01-08 Thread Roch - PAE
Just posted: http://blogs.sun.com/roch/entry/nfs_and_zfs_a_fine Performance, Availability & Architecture Engineering Roch BourbonnaisSun Microsystems, Icnc-Grenobl