NFS服务器拒绝了挂载请求

无法将NFS卷挂载到ESXi主机或Unix、获取权限被拒绝错误：
- UNIX： [root@xxxx ~]# mount /temp/wes_test/mount.nfs: access denied by server while mountingxx.xx.xx:/test
- ESXi：Operation failed, diagnostics report: Mount failed: Unable to complete Sysinfo operation. Please see the VMkernel log file for more details.: The NFS server denied the mount request
"check-access"命令输出显示对Vserver VSVM上具有"default"导出策略的根卷的访问被拒绝：
- ::> check-access -vserver vsvm -volume PROD_NFS -client-ip 10.1.2.3 -authentication-method sys -protocol nfs3 -access-type read-write
  
  (vserver export-policy check-access)
  
  Policy   Policy    Rule
  
  Path              Policy   Owner   Owner Type Index Access
  
  ----------------------------- ---------- --------- ---------- ------ ----------
  
  /               default   vsvm_root volume   0 denied
进一步调查显示、Vserver VSVM 默认策略没有规则
- ::> vserver export-policy rule show -vserver vsvm
  
  Policy    Rule     Access     Client         RO
  
  Vserver    Name     Index      Protocol    Match         Rule
  
  ------------ --------------- ------ -------- --------------------- ---------
  
  vsvm  Production_Oracle  1          nfs    0.0.0.0/0        any
  
  1 entry was displayed.