Re: NFSv4 delegation

Il 11/06/2015 16:03, brd ha scritto:

hi all, i'm managing a large installation of a dovecot cluster in director + NFS backend architecture and we are moving from NFSv3 to NFSv4. Our NFS server is a Netapp

Hi,

I'm running a similar configuration, expect for the size (medium), with Dovecot/Director and NetApp (but without clustered mode), mailbox are in Maildir format.

Have you already try to run NFSv4? When we switch to netapp and nfsv4 we had many problems (lock problems and instability) and we had to go immediately to NFSv3. I don't know if was a netapp problem or nfs client (Debian with 2.6 kernel), now we are using Centos 6 as NFS client and we should re-try to mount mailbox as nfsv4.

Let me know if nfsv4 works fine for you. Ciao

Alessio Cecchi http://www.linkedin.com/in/alessice