Re: NFSv4 and Maildir

2016-10-03 Thread Joseph Tam
Noel Butler writes: I found the same thing, and turning off write delegation seemed to have solved the problem. I still don't know why, though. write delegation is disabled by default on NetApp with v4, or have they changed this now? I think this is still the case: when I exported NFSv4, I

Re: NFSv4 and Maildir

2016-09-30 Thread Noel Butler
On 01/10/2016 08:27, Joseph Tam wrote: we have a setup with (CentOS 6) Director+Dovecot, Maildir as storage on NetApp NFS v3. Every time I try to switch to NFS v4 I found issue with lock (and others). So for me NFSv4 with Maildir is "unstable" or need a fine tuning that I don't know. I foun

Re: NFSv4 and Maildir

2016-09-30 Thread Joseph Tam
we have a setup with (CentOS 6) Director+Dovecot, Maildir as storage on NetApp NFS v3. Every time I try to switch to NFS v4 I found issue with lock (and others). So for me NFSv4 with Maildir is "unstable" or need a fine tuning that I don't know. I found the same thing, and turning off write dele

Re: NFSv4 and Maildir

2016-09-30 Thread Alessio Cecchi
Il 23/09/2016 14:31, Robert Blayzor ha scritto: Recently moving to newer storage platforms for mailbox storage so looking at moving mounts from NFSv3 with lots of issues with locking and caching to NFSv4. There seems to be a lot of benefits to v4 along with some other new features, namely “de

NFSv4 and Maildir

2016-09-23 Thread Robert Blayzor
Recently moving to newer storage platforms for mailbox storage so looking at moving mounts from NFSv3 with lots of issues with locking and caching to NFSv4. There seems to be a lot of benefits to v4 along with some other new features, namely “delegation”. So the question boils down to, to deleg