Multiple NFS clients have been sending the message nfs: server Data_LIF_IP not responding, still trying in the middle of every night. From the PerfArchive log, all we can see is that NFS I/O suddenly ...Multiple NFS clients have been sending the message nfs: server Data_LIF_IP not responding, still trying in the middle of every night. From the PerfArchive log, all we can see is that NFS I/O suddenly stopped, and there are no signs of high latency behaviors. From the packet trace log: The storage system failed to receive any further NFS requests during the period when these client messages were being sent The client was repeatedly sending TCP Retransmission packets to the storage system
Applies to ONTAP 9+ Issue A volume is removed from the namespace/unmounted in ONTAP, and clients with the volume mounted prior to the change still have access to the volume.
Applies to ONTAP 9 NFSv3 Locking Network Lock Manager (NLM) Issue High latency for NFSv3 volume with Locking Linear latency increase will seen in the monitoring tools vserver lock show command runs co...Applies to ONTAP 9 NFSv3 Locking Network Lock Manager (NLM) Issue High latency for NFSv3 volume with Locking Linear latency increase will seen in the monitoring tools vserver lock show command runs continuously for an extended timeframe and does not complete.
Applies to ONTAP 9 NFS v3 Issue Fresh attempts to mount NFS export hang and throw below (or similar) error [root@RHEL7 ~] mount.nfs: Connection timed out Existing mounts continue to work until or unle...Applies to ONTAP 9 NFS v3 Issue Fresh attempts to mount NFS export hang and throw below (or similar) error [root@RHEL7 ~] mount.nfs: Connection timed out Existing mounts continue to work until or unless they are unmounted
NFSv3 I/O stops for 60 seconds when the network cable is unplugged During the network cable unplugging, the LIF failover works without problem IO test (General NFSv3 read/write script) Detect the I/O'...NFSv3 I/O stops for 60 seconds when the network cable is unplugged During the network cable unplugging, the LIF failover works without problem IO test (General NFSv3 read/write script) Detect the I/O's stopping Start 2024-08-23 16:14:48 End 2024-08-23 16:15:48 Durations Jul 22, 2024 ..Interval.. .ReqstdOps... ...cpu%... read ....read..... ....write.... ..mb/sec... mb/sec .xfer.. ....open.... ...close.... rate resp total sys pct rate resp rate resp read write total size rate resp rate resp
Applies to ONTAP 9 NFSv3 Issue Application is writing their log files to NetApp storage system NFSv3 is used The files saved to the storage system occasionally lose part of its contents From the packe...Applies to ONTAP 9 NFSv3 Issue Application is writing their log files to NetApp storage system NFSv3 is used The files saved to the storage system occasionally lose part of its contents From the packet trace, the storage system replied all NFSv3 calls without problem in timely manner.
A single Network File System operation (NFS op) is the combination of a NFS request from a client, and a NFS reply to the request from a server. NFS client performs a lookup of /home ; then the NFS se...A single Network File System operation (NFS op) is the combination of a NFS request from a client, and a NFS reply to the request from a server. NFS client performs a lookup of /home ; then the NFS server responds with the results. NFS client performs a lookup of /home/netapp ; then the NFS server responds with the results. The list of NFS ops available to the client, and the number of calls per op can be viewed with the following command:
Applies to A700 ONTAP 9 Issue If the switch sets the MTU size as 1500, a ping test from the client with an MTU size of 1500 will fail Swithch: MTU 1500 If the switch sets the MTU size as 9192, a ping ...Applies to A700 ONTAP 9 Issue If the switch sets the MTU size as 1500, a ping test from the client with an MTU size of 1500 will fail Swithch: MTU 1500 If the switch sets the MTU size as 9192, a ping test from the client with an MTU size of 1500 will succeed Example: Netapp storage: MTU 1500 Swithch: MTU 9192 Client: MTU 1500
