Nblade.dBladeNoResponse.NFS has an RPC procedure number but its not clear what this number is

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Specialty:: NAS

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Applies to

ONTAP 9.5 and higher

Answer

Example error:

[node: kernel: Nblade.dBladeNoResponse.NFS:error]: File operation timed out because there was no response from the data-serving node. Node UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx, file operation protocol: NFS, client IP address: 10.x.x.10, RPC procedure: 3.

The RPC procedure number corresponds to the NFS opcodes.

             NFSPROC3_NULL(void)                    = 0;

            GETATTR3res
             NFSPROC3_GETATTR(GETATTR3args)         = 1;

            SETATTR3res
             NFSPROC3_SETATTR(SETATTR3args)         = 2;

            LOOKUP3res
             NFSPROC3_LOOKUP(LOOKUP3args)           = 3;

            ACCESS3res
             NFSPROC3_ACCESS(ACCESS3args)           = 4;

            READLINK3res
             NFSPROC3_READLINK(READLINK3args)       = 5;

            READ3res
             NFSPROC3_READ(READ3args)               = 6;

            WRITE3res
             NFSPROC3_WRITE(WRITE3args)             = 7;

            CREATE3res
             NFSPROC3_CREATE(CREATE3args)           = 8;

            MKDIR3res
             NFSPROC3_MKDIR(MKDIR3args)             = 9;

            SYMLINK3res
             NFSPROC3_SYMLINK(SYMLINK3args)         = 10;
             
             MKNOD3res
             NFSPROC3_MKNOD(MKNOD3args)             = 11;

            REMOVE3res
             NFSPROC3_REMOVE(REMOVE3args)           = 12;

            RMDIR3res
             NFSPROC3_RMDIR(RMDIR3args)             = 13;

            RENAME3res
             NFSPROC3_RENAME(RENAME3args)           = 14;

            LINK3res
             NFSPROC3_LINK(LINK3args)               = 15;

            READDIR3res
             NFSPROC3_READDIR(READDIR3args)         = 16;

            READDIRPLUS3res
             NFSPROC3_READDIRPLUS(READDIRPLUS3args) = 17;

            FSSTAT3res
             NFSPROC3_FSSTAT(FSSTAT3args)           = 18;

            FSINFO3res
             NFSPROC3_FSINFO(FSINFO3args)           = 19;

            PATHCONF3res
             NFSPROC3_PATHCONF(PATHCONF3args)       = 20;

            COMMIT3res
             NFSPROC3_COMMIT(COMMIT3args)           = 21;

Additional Information

For ONTAP version 9.4 or lower, the syntax of the event doesn't include the RPC procedure. Example:

[node: kernel: Nblade.dBladeNoResponse:error]: Gave up retrying a file operation due to no response from the specified node. UUID of the node where data is located is xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx; the protocol for the operation is NFS.

If the event is not reported frequently, it can be disregarded.