NFSv4 delegation

Alessio Cecchi alessio at
Fri Jun 12 11:13:47 UTC 2015

Il 12/06/2015 13:02, brd ha scritto:
> 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)

Good to know, let me know what will be when the load will grow.

>> 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)

Never enabled "delegation feature" on my netapp.

Probably my issue was on client side. I had to switch immediately to 
NFSv3 without being able to investigate the problem.

Alessio Cecchi

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