NFS clients are intermittently unable to connect to mounts
Applies to
- ONTAP 9
- NFS
Issue
- NFS clients are unable to connect to mounts intermittently with the following error:
Jun 13 22:02:58 linuxclient.domain.com kernel: nfs: server netapp01.domain.com not responding, still trying
- DNS and LDAP timeout errors are logged in ONTAP EMS
- Other problems are noted in the environment such as monitor software isn't connecting, some clients can't be SSH'd into, and cluster peer is intermittently unreachable
- Rebooting impacted NFS clients resolves the issue, but the same hang occurs some time later
- Takeover and giveback of storage nodes does not help
- No port errors are logged on switches, storage controllers, or clients