IP Multi-pathing - problem in auto-mounting

From: Alan Kong (kkkong@ee.cuhk.edu.hk)
Date: Fri Aug 12 2005 - 02:51:00 EDT


Dear All,

We have a Sun Fire V240 server config. to run multi-pathing with the 2
on-board bge NICs. The configuration was directly from the document by
Rodrick Brown. There was no problem in accessing remote file systems
using auto-mount at start-up.

However, some remote file systems were inaccessible after a few hours
and the following were observed in syslog file:

Aug 12 11:28:41 esunvx240 nfs: [ID 664466 kern.notice] NFS access failed
for ser
ver cuees9: error 7 (RPC: Authentication error)
Aug 12 11:28:46 esunvx240 last message repeated 3 times
Aug 12 11:28:58 esunvx240 nfs: [ID 664466 kern.notice] NFS access failed
for ser
ver mailhost: error 7 (RPC: Authentication error)
Aug 12 11:28:58 esunvx240 last message repeated 1 time
Aug 12 11:30:33 esunvx240 nfs: [ID 664466 kern.notice] NFS lookup failed
for ser
ver cuees9: error 7 (RPC: Authentication error)
Aug 12 11:30:46 esunvx240 last message repeated 131 times
Aug 12 11:53:47 esunvx240 in.mpathd[103]: [ID 585766 daemon.error]
Cannot meet r
equested failure detection time of 10000 ms on (inet bge1) new failure
detection
 time for group "production" is 48202 ms
Aug 12 11:54:47 esunvx240 in.mpathd[103]: [ID 302819 daemon.error]
Improved fail
ure detection time 24101 ms on (inet bge1) for group "production"
Aug 12 11:54:47 esunvx240 in.mpathd[103]: [ID 302819 daemon.error]
Improved fail
ure detection time 12050 ms on (inet bge0) for group "production"
Aug 12 11:54:48 esunvx240 in.mpathd[103]: [ID 302819 daemon.error]
Improved fail
ure detection time 10000 ms on (inet bge1) for group "production"
Aug 12 13:53:54 esunvx240 in.mpathd[103]: [ID 585766 daemon.error]
Cannot meet r
equested failure detection time of 10000 ms on (inet bge1) new failure
detection
 time for group "production" is 45892 ms

cuees9 is the application server where ssh and other application resides
and ssh starts when the v240 start-up.
mailhost is the mail server where /var/mail hangs from there.

The current platform running on v240 is Solaris 2.9 in a NIS+ environment.

Pls advise on:
- whether IP multi-pathing works in NIS+ with auto-mount environment;
- suggestions on solving the problem;
- is there any config. varibles I need to to change?

Thank you.

Regards
Alan
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