Re: Looking for way to monitor dsync, confirm it is or isn't running

2016-03-13 Thread Rich Wales
Earlier, I asked: >> I would like to be able to run some sort of periodic health check to >> confirm that dsync is (or is not) running properly between the two >> sites, and alert me if dsync is failing or lagging excessively. Does >> anyone know of a tool to do this? and Michael Grimm replied:

Re: NetApp NFS vs. ZFS and NFS for Maildir

2016-03-13 Thread Stephan von Krawczynski
On Mon, 14 Mar 2016 09:32:42 +1000 Noel Butler wrote: > On 13/03/2016 20:47, Stephan von Krawczynski wrote: > > On Sun, 13 Mar 2016 09:45:06 + > > James wrote: > > > >> On 11/03/2016 15:17, Stephan von Krawczynski wrote: > >> > >> > zfs set

Re: NetApp NFS vs. ZFS and NFS for Maildir

2016-03-13 Thread Noel Butler
On 13/03/2016 20:47, Stephan von Krawczynski wrote: On Sun, 13 Mar 2016 09:45:06 + James wrote: On 11/03/2016 15:17, Stephan von Krawczynski wrote: > zfs set sync=disabled ? Only if you are happy to loose data on power failure. I don't know the actual setup, but if

Re: NetApp NFS vs. ZFS and NFS for Maildir

2016-03-13 Thread Stephan von Krawczynski
On Sun, 13 Mar 2016 11:47:23 +0100 Stephan von Krawczynski wrote: > On Sun, 13 Mar 2016 09:45:06 + > James wrote: > > > On 11/03/2016 15:17, Stephan von Krawczynski wrote: > > > > > zfs set sync=disabled ? > > > > Only if you are happy to loose data

Re: NetApp NFS vs. ZFS and NFS for Maildir

2016-03-13 Thread Stephan von Krawczynski
On Sun, 13 Mar 2016 09:45:06 + James wrote: > On 11/03/2016 15:17, Stephan von Krawczynski wrote: > > > zfs set sync=disabled ? > > Only if you are happy to loose data on power failure. I don't know the actual setup, but if you have no UPC you shouldn't host email

Re: NetApp NFS vs. ZFS and NFS for Maildir

2016-03-13 Thread James
On 11/03/2016 15:17, Stephan von Krawczynski wrote: > zfs set sync=disabled ? Only if you are happy to loose data on power failure.

Re: NetApp NFS vs. ZFS and NFS for Maildir

2016-03-13 Thread James
On 11/03/2016 14:58, Juan Bernhard wrote: Someone has experiences with ZFS and NFS(v3) in high load environments? Thanks Be careful to no do any synchronous writes under ZFS. By default all NFS writes are synchronous but I assume dovcot sync writes all data anyway so in this case the NFS