we do not utilize CIFS and we have no non production filers to verify/test on :)

NDU works for us but yes i agree with you on all points here.

--
Daniel Leeds
Manager, Storage Operations
Edmunds.com



-----Original Message-----
From: Scott Miller [mailto:Scott.Miller@dreamworks.com]
Sent: Tue 9/25/2007 3:24 PM
To: Leeds, Daniel
Cc: Kennedy, Jeffrey; Borzenkov, Andrey; philip.boyle@eircom.net; toasters@mathworks.com
Subject: Re: ONTAP UPGRADE - FEEDBACK REQUEST


I'm with Jeff.  A reboot takes less time that failover/failback,
and I'd rather have CIFS shares disconnect and re-connenct just once.

Rather than NDU, I upgrade both heads and then reboot them at the
same time.  After having tested the new release on non-critical
filer resources, of course ;-)  reboots occur during non-peak
times or during scheduled maintenance windows, when possible.

  -skottie

Leeds, Daniel wrote:
>
> NDU is highly valuable when you are running 24x7 environments with live
> active data.  We have had alot of success with this but still prefer a
> scheduled upgrade downtime if possible.  Both work great.  :)
>
>
> --
> Daniel Leeds
> Manager, Storage Operations
> Edmunds.com
>
>
>
> -----Original Message-----
> From: owner-toasters@mathworks.com on behalf of Kennedy, Jeffrey
> Sent: Tue 9/25/2007 11:16 AM
> To: Borzenkov, Andrey; philip.boyle@eircom.net; toasters@mathworks.com
> Subject: RE: ONTAP UPGRADE - FEEDBACK REQUEST
>
> NDU really isn't is it?  CIFS connections are still severed and NFS
> survives both an NDU and a reboot easily enough.
>
>
>
> I've never understood the value of NDU honestly but if someone has a
> success story I'd be interested to hear it.
>
>
>
> Thanks.
>
>
>
> Jeff Kennedy
>
> QCT Engineering Compute
>
> 858-651-6592
>
>
>
--

Scott.Miller@DreamWorks.com