Re: NFSv4 delegation

Alessio Cecchi wrote: [...]

Have you already try to run NFSv4? it's in place on a (very) small sample of mailboxes in dbox format, no issues up to now (Debian Wheezy mainline kernel)

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.

when you've had problems, the "delegation feature" was active on Netapp filers? (AFAIK it is disabled by default)

you had a look here for known bugs? https://kb.netapp.com/support/index?id=3014338&page=content

ciao -brd