![自启动以来的 NFS 读取/写入](https://linux22.com/image/685582/%E8%87%AA%E5%90%AF%E5%8A%A8%E4%BB%A5%E6%9D%A5%E7%9A%84%20NFS%20%E8%AF%BB%E5%8F%96%2F%E5%86%99%E5%85%A5.png)
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,我能够看到每个 NFS 挂载点的当前吞吐量(以 kB/S 为单位)。
iostat -nk
或者:
nfsiostat
有没有办法告诉 iostat 或 nfsiostat 返回自启动以来的总千字节数?
(与的最后两列非常相似iostat -k
)
Device: tps kB/read/s kB/wrtn/s kB_read kB_wrtn
sda 17.69 234.75 30.82 2760421 362433
答案1
假设你使用 Linux 客户端,你可以使用安装统计命令,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=a.b.c.d,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 包的一部分。在基于 debian 的系统上,可能是 nfs-common。