We're running a VMWare ESXi 5.1 cluster. On that we have an OES 11 cluster managing groupwise/iprint/nss/dhcp/dns services. Over the summer we updated to SP1 on the OES side.

This school year we have seen some odd issues, particularly with our NSS volumes. Occasionally, some users will report that they can't see their home directory or other shared folders. I actually had one user opening up a shared folder for our high school and was seeing a shared folder for a completely different school. If you created a new folder, it put it in the proper share. So, very weird behavior. Generally a client reboot fixes the issues, but it's becoming common enough that I feel there is some underlying issue.

Any thoughts about what could be causing this? I'm not even sure where to look as far as logs go when we see the problem.