Applies to ONTAP 9 NFSv4.1 pNFS RedHat Enterprise Linux (RHEL) Issue After a network partition (network is unavailable for some time) Linux clients can be seen to lose track of NFS4.1 Sequencing After...Applies to ONTAP 9 NFSv4.1 pNFS RedHat Enterprise Linux (RHEL) Issue After a network partition (network is unavailable for some time) Linux clients can be seen to lose track of NFS4.1 Sequencing After the network has recovered, the NFS client has incremented its sequence on the active slot beyond where the server has acknowledged This is an indication that multiple sequences have been sent and not retransmitted as the server never receives the missed sequences
Applies to ONTAP 9 NFSv4.1 Linux client Issue Specific NFSv4.1 clients lose the ability to perform READ/WRITE operations to an export Unmounting and remounting the export without changing mount option...Applies to ONTAP 9 NFSv4.1 Linux client Issue Specific NFSv4.1 clients lose the ability to perform READ/WRITE operations to an export Unmounting and remounting the export without changing mount options does not fix the issue, even if the impacted export was the only mounted export Packet captures collected when the issue is occurring show the client sending SEQUENCE calls, to which ONTAP sends back NFS4ERR_SEQ_MISORDERED
Applies to ONTAP 9 VMware ESXi 6 and higher Issue Virtual Machines hosted in NFSv4.1 VMware ESXi 6.x+ datastores end up powered off after storage failover events These events include: ONTAP upgrade LI...Applies to ONTAP 9 VMware ESXi 6 and higher Issue Virtual Machines hosted in NFSv4.1 VMware ESXi 6.x+ datastores end up powered off after storage failover events These events include: ONTAP upgrade LIF migration Storage takeover Storage giveback MetroCluster switchover
Applies to ONTAP 9 VMware ESXi 6 and higher NFSv4.1 Issue NFSv4.1 VMware ESXi 6.x+ datastores see disruption during events that should be non-disruptive. These events include: ONTAP upgrade LIF migrat...Applies to ONTAP 9 VMware ESXi 6 and higher NFSv4.1 Issue NFSv4.1 VMware ESXi 6.x+ datastores see disruption during events that should be non-disruptive. These events include: ONTAP upgrade LIF migration Storage takeover Storage giveback MetroCluster switchover
Applies to Solaris 11 ONTAP 9 NFSV4.1 Issue Mount via NFSv4.1 is not possible On the node where the data LIF resides EMS.log: Nblade.nfsV4PoolExhaust: NFS Store Pool for ConnectionHolder exhausted
Applies to ONTAP 9 Cluster Data ONTAP 8 Data ONTAP 7-mode NFSv4.1 Issue In a trace we see that the storage responds with the NFS4ERR_BAD_SEQID error from the very first time the client initiated a req...Applies to ONTAP 9 Cluster Data ONTAP 8 Data ONTAP 7-mode NFSv4.1 Issue In a trace we see that the storage responds with the NFS4ERR_BAD_SEQID error from the very first time the client initiated a request with a Sequence ID higher than: 0x0fffffff (7f). In other words, when the Sequence ID sent from the client uses the last bit. Example from a client trace with the issue:
