Monitoring NFS Server on FreeBSD

I will show you in this tutorial, step-by-step, how to monitor your NFS server on FreeBSD.

There is an awesome tool provided by NFS Server by default called nfsstat, that give you a detailed statistics about your NFS server/client structure activity (number of requests executed read/write, cache hits, server faults, real-time bandwidth or traffic served by nfs server), there is alternatives to it like nfswatch and daemonfs.

nfsstat -d : shows kb/s/transfer, transfers/s, and mb/s for read/write operations, and all operation, and also gives the current queue depth, the busy percentage and latency for all operations.

root@freebsdsrv:~ # nfsstat -d

 [===== Read =====]  [===== Write ====]  [=========== Total ============]

 KB/t   tps    MB/s  KB/t   tps    MB/s  KB/t   tps    MB/s    ms  ql  %b

 0.00     0    0.00   0.00       0     0.00   0.00     0    0.00  0.00   0   0

 0.00     0    0.00   0.00       0     0.00   0.00     0    0.00  0.00   0   0

 0.00     0    0.00 64.00   150     9.37 61.57   156    9.37  0.72   0  11

 0.00     0    0.00 64.00   175   10.93 63.32   177   10.93  0.27   1   5

 0.00     0    0.00 63.58   133     8.25 62.20   136    8.25  1.88   0  26

 0.00     0    0.00   0.00       0     0.00   0.00     0    0.00  0.00   0   0

 0.00     0    0.00   0.00       0     0.00   0.00     0    0.00  0.00   0   0


root@freebsdsrv:~ # nfsstat 

Client Info:

Rpc Counts:

  Getattr   Setattr    Lookup  Readlink      Read     Write    Create    Remove

        0         0         0         0         0         0         0         0

   Rename      Link   Symlink     Mkdir     Rmdir   Readdir  RdirPlus    Access

        0         0         0         0         0         0         0         0

    Mknod    Fsstat    Fsinfo  PathConf    Commit

        0         0         0         0         0

Rpc Info:

 TimedOut   Invalid X Replies   Retries  Requests

        0         0         0         0         0

Cache Info:

Attr Hits    Misses Lkup Hits    Misses BioR Hits    Misses BioW Hits    Misses

        0         0         0         0         0         0         0         0

BioRLHits    Misses BioD Hits    Misses DirE Hits    Misses Accs Hits    Misses

        0         0         0         0         0         0         0         0


Server Info:

  Getattr   Setattr    Lookup  Readlink      Read     Write    Create    Remove

        3         0         2         0         0       474         0         0

   Rename      Link   Symlink     Mkdir     Rmdir   Readdir  RdirPlus    Access

        0         0         0         0         0         0         0         1

    Mknod    Fsstat    Fsinfo  PathConf    Commit

        0         7         2         0         8

Server Ret-Failed

                0

Server Faults

            0

Server Cache Stats:

   Inprog      Idem  Non-idem    Misses

        0         0         0       498

Server Write Gathering:

 WriteOps  WriteRPC   Opsaved

      474       474         0


You can read more about nfsstat command on man documentation :

man nfsstat

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