我想要检索每个NFS挂载点读取/写入的总千字节数。
使用以下命令，我能够以kB / S的速度查看每个NFS安装点的当前吞吐量。
iostat -nk 或者：
nfsiostat
有没有办法告诉iostat或nfsiostat从启动以来返回的千字节总数？
（很像iostat -k的最后两列）
Device: tps kB/read/s kB/wrtn/s kB_read kB_wrtn sda 17.69 234.75 30.82 2760421 362433
通过假设您使用Linux客户端，您可以使用mountstats命令，它打印每个挂载点的统计信息：
$ mountstats /mnt Stats for xxxx:/ mounted on /mnt: NFS mount options: rw,vers=4.1,rsize=32768,wsize=32768,namlen=255,acregmin=3,acregmax=60,acdirmin=30,acdirmax=60,hard,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=abcd,local_lock=none NFS server capabilities: caps=0x3ffdf,wtmult=512,dtsize=32768,bsize=0,namlen=255 NFSv4 capability flags: bm0=0xfcffbfff,bm1=0x40fdbe3e,bm2=0x800,acl=0x3,sessions,pnfs=LAYOUT_NFSV4_1_FILES NFS security flavor: 1 pseudoflavor: 0 NFS byte counts: applications read 602253119 bytes via read(2) applications wrote 1750 bytes via write(2) applications read 0 bytes via O_DIRECT read(2) applications wrote 0 bytes via O_DIRECT write(2) client read 552781120 bytes via NFS READ client wrote 1750 bytes via NFS WRITE RPC statistics: 634086 RPC requests sent, 634061 RPC replies received (0 XIDs not found) average backlog queue length: 0 READ: 164908 ops (26%) avg bytes sent per op: 208 avg bytes received per op: 3457 backlog wait: 0.112984 RTT: 0.523801 total execute time: 0.651181 (milliseconds) GETATTR: 156471 ops (24%) 4 retrans (0%) 0 major timeouts avg bytes sent per op: 191 avg bytes received per op: 267 backlog wait: 0.202849 RTT: 0.257179 total execute time: 0.496686 (milliseconds) LAYOUTGET: 156323 ops (24%) avg bytes sent per op: 236 avg bytes received per op: 215 backlog wait: 0.007536 RTT: 5.057336 total execute time: 5.319857 (milliseconds) OPEN_NOATTR: 156321 ops (24%) avg bytes sent per op: 260 avg bytes received per op: 347 backlog wait: 0.007126 RTT: 0.473941 total execute time: 0.489806 (milliseconds)
在基于RedHat的系统上，它是nfs-util软件包的一部分。 在debian的基础上可能在nfs-common。