Garrett,
We use NFS over TCP over 5000KM (from RTP to SJ) but only for bare necessities. We place as much replicated content as possible at each site and only go over the WAN for things that cannot be replicated.
I would not recommend primary NFS storage over a WAN unless latency is VERY low (i.e. < 5ms). Depending on the application, bandwidth may or may not be as important. For homedirs, bandwidth is not a big deal usually. For large data archives, of course that would be a different story.
/Brian/
On Mon, 2002-12-09 at 09:45, Garrett Burke wrote:
Hi All,
I'm wondering if anyone out there has experience with running NFS with filers over long distances - of the order of 10s of KM.
I'm particularly interested to find out experiences when bandwidth was and wasn't an issue. For example, running at 34Mbs/155Mbs against running over GigE. Was tweaking the NFS request size required? Was TCP used and if so was it because pkt loss was impacting NFS performance? Did latency become an issue?
Thanks, GB
Garrett Burke, Service Implementation & Support Manager, Eircomnet. http://www.eircom.net