Sstrhsrtj

(my systems are running centos7)

I'm trying to check from the client if drives are mounted properly over NFS.

Typing the command nfsstat -m gives me the mounts that it thinks are currently mounted, but this is no guarantee that those folders are accessible. It could just be that the nfs server was running when those folders were mounted but that the nfs server is down now.

For example if the nfs server goes down and on the client machine I type df -h then the command will hang indefinitely. Likewise, if I try to ls the folder I'm trying to mount then it too will hang indefinitely.

Here's an example that shows my problem

# on server

systemctl start nfs-server



# on client

mount node1:/mnt/images /mnt/images

df -h #works fine here



# on server

systemctl stop nfs-server



# on client

nfsstat -m #shows the list of nfs mounts

df -h #this command will hang

ls /mnt/images #this command will hang

Any suggestions on how to test if from the client side if the NSF server is running or if the NSF mounted folders are accessible would be greatly appreciated.

UPDATE

If I run showmount -e on the server I get this output (note /mnt/images and /mnt/rv_output and /rv are all folders I'm trying to mount from my client machines)

/mnt/rv_output 192.168.81.0/24

/mnt/images    192.168.81.0/24

/rv            192.168.81.0/24

But I'm not interested in testing this connection on the Server, I want to test it on the client machines. If I run showmount -e on the client I get the same output irregardless of where the nfs-server has been activated from the Server computer.

clin_create: RPC: Port mapper failure - Unable to receive: errno 111 (connection refused)

showmount

from man showmount

showmount - show mount information for an NFS server

I use with --exports ( or -e ) option to see what is actually exported.