Fix NFS Performance Problem

Your NFS server is crashing? You have no problems when is reading but it cant write?

NFS was optimized and the only thing was updated Red Hat kernel v5.2 and CentOS 5.2 64 bit edition.

To fix this problem you should updated kernel packages. It will fix various security problems and bugs.

a 50-75% drop in NFS server rewrite performance, compared to Red Hat Enterprise Linux 4.6, has been resolved.
Read more at: Important: kernel security and bug fix update

Dont forget to run the next command:
# yum update