Hi, An experienced sys admin and a colleague of mine argue that NFS is "fundamentally broken", in the sense that because of it's stateless architecture, a NFS client can "hang" during shutdown if it's NFS server(s) does not respond. This is aggravated when an "ack" is lost between server/client. He claims to have gone through NFS code while he was at a prestigious university. Granted I am not an expert, all the years I have worked with NFS, I never had a problem shutting down a system because it's NFS mount was not "responding". But I am hoping for folks with "theoretical" background to shed some more light into the above argument.
This brings to the second question. The same person emphasize the above issue as an added reason for not having NFS mount points on his HP High Availability (ServiceGuard). Is there any site out there, in this wide world, using HP's ServiceGuard (or any other HA) on a system that is an NFS client and would like to comment on their experience in private or in this forum.
Philip Thomas Motorola - PEL, M/S M350 2200 W. Broadway M350 Mesa, AZ 85202 rxjs80@email.sps.mot.com (602) 655-3678 (602) 655-2285 (fax)