NFS Share was mounted with NFSv3 but showing NFSv4 statistics
Issue
- A remote server is mounted using NFS vers=3:
nfsserver:/vol/foo/bar on /foo/bar type nfs (rw,nosuid,bg,hard,nointr,rsize=32768,wsize=32768,tcp,vers=3,timeo=600,actimeo=120,addr=w.x.y.z)
But we see NFSv4 reads and writes:
# nfsstat
Client rpc stats:
calls retrans authrefrsh
13468181 0 13468574
Client nfs v3:
null getattr setattr lookup access readlink
0 0% 48434 18% 0 0% 0 0% 0 0% 0 0%
read write create mkdir symlink mknod
0 0% 0 0% 0 0% 0 0% 0 0% 0 0%
remove rmdir rename link readdir readdirplus
0 0% 0 0% 0 0% 0 0% 0 0% 0 0%
fsstat fsinfo pathconf commit
219500 81% 2 0% 1 0% 0 0%
Client nfs v4:
null read write commit open open_conf
0 0% 112 0% 13187629 99% 0 0% 1080 0% 0 0%
open_noat open_dgrd close setattr fsinfo renew
0 0% 0 0% 1080 0% 2048 0% 168 0% 340 0%
setclntid confirm lock lockt locku access
56 0% 56 0% 0 0% 0 0% 0 0% 2359 0%
getattr lookup lookup_root remove rename link
537 0% 2736 0% 56 0% 856 0% 0 0% 0 0%
symlink create pathconf statfs readlink readdir
0 0% 56 0% 112 0% 352 0% 0 0% 168 0%
server_caps delegreturn getacl setacl fs_locations rel_lkowner
280 0% 0 0% 0 0% 0 0% 0 0% 0 0%
exchange_id create_ses destroy_ses sequence get_lease_t reclaim_comp
0 0% 0 0% 0 0% 0 0% 0 0% 0 0%
layoutget layoutcommit layoutreturn getdevlist getdevinfo ds_write
0 0% 0 0% 0 0% 0 0% 0 0% 0 0%
ds_commit
0 0%
Environment
- Red Hat Enterprise Linux 6.3
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