#Ubuntu nfs manager manual
#Ubuntu nfs manager upgrade

The port-channel aka EtherChannel aka bonding configuration on the switch was incorrect:.A damaged security appliance mangling packets between the NFS Client and NFS Server:.Problem between the NFS Client and NFS ServerДЇor example, overloaded, mis-configured, or malfunctioning switches, firewalls, or networks may cause NFS requests to get dropped or mangled between the NFS Client and NFS Server. Within each category, there are specific instances given below. There are 3 possible categories of root causes:

#Ubuntu nfs manager manual

For more information on timeo and retrans, see the NFS manual page ( man nfs). Under a heavy NFS workload, it is not unusual for an NFS server to take longer than 1.5 seconds to respond to one or more NFS requests.

For example, setting timeo=5 with the default retrans=2 will cause this message to be printed if the NFS server takes longer than 0.5 + 1.0 = 1.5 seconds to respond to any NFS request.

NOTE: A very low value for timeo NFS mount option, which is much less than the default of 600, may increase the likelihood and frequency of this message.

For more information, see the retrans and timeo options in the NFS manual page ('man nfs'). With the default options of retrans and timeo, this message will be printed after 180 seconds.

Each message indicates that one NFS/RPC request (for example, one NFS WRITE) has been sent retrans times and timed out each time.

not responding, still trying' message may appear in syslog.

If the NFS client does not receive a response from the NFS server, the ' server.

The team responsible for the network between NFS Client and NFS Server should be engaged to investigate connectivity and capacity issues. Investigate connectivity issues such as network link down, network packet loss, system hang, NFS client/server hang or slowness, storage hang or slowness. Investigation will be required on both NFS Client and NFS Server.ДЇor non-Red Hat NFS Clients or Servers, engage the vendor of the non-Red Hat system.

Problem between the NFS Client and Server.

The resolution for this issue will vary depending on whether the root cause is: Kernel: nfs: server not responding, timed out The system immediately suspended.ДЄfter resuming, mount -all brought back the NFS directories and I could resume the interactive session without any issues.NFS shares hang with the following error(s) in /var/log/messages: kernel: nfs: server not responding, still trying Switched to console and force-unmounted the NFS directories after PM: suspend entry (deep). I had a similar problem in 2018 which just vanished after some time.Д¬ould anybody help me out with that? What is the intended procedure if you have your homedir on NFS and would like to suspend the system? Problem occurs only if my NFS user is logged on. I get, after waiting 2 minutes, the infamous NFS server not responding, still trying.Д®verything works as expected without NFS directories mounted and surpisingly, even with a directory mounted and an active tail -f on a NFS file works. Mar 18 09:22:37 kernel: PM: suspend entry (deep) Mar 18 09:22:37 systemd-sleep: Suspending system. Mar 18 09:22:37 systemd: Starting Suspend. Mar 18 09:22:37 systemd: Reached target Sleep. Mar 18 09:22:17 systemd: rvice: Succeeded.

Trouble is, almost everything shuts down as expected, but after Mar 18 09:22:07 kernel: r8169 0000:08:00.0 eno1: Link is Down Home directory is on NFS, so unmounting if NetworkManager dispatches a pre-down signal with umount -verbose -lazy -all -types nfs,nfs4,cifs (as suggested here on German Ubuntuusers) fails as expected.

#Ubuntu nfs manager upgrade

With my Ubuntu server upgrade from 18.04 to 20.04 and Kubuntu client upgrade from 20.04 to 21.04, I can no longer suspend my client.