[gpfsug-discuss] Remote cluster mount failing

[Simon Thompson (Research Computing - IT Services)]

Hi All,

I'm trying to get some multi cluster thing working between two of our GPFS
clusters.

In the "client" cluster, when trying to mount the "remote" cluster, I get:

# mmmount gpfs
Wed  7 Sep 13:33:06 BST 2016: mmmount: Mounting file systems ...
mount: mount /dev/gpfs on /gpfs failed: Connection timed out
mmmount: Command failed. Examine previous error messages to determine
cause.


And in the log file:
Wed Sep  7 13:33:07.481 2016: [N] The client side TLS handshake with node
10.0.0.182 was cancelled: connection reset by peer (return code 420).
Wed Sep  7 13:33:07.486 2016: [N] The client side TLS handshake with node
10.0.0.181 was cancelled: connection reset by peer (return code 420).
Wed Sep  7 13:33:07.487 2016: [E] Failed to join remote cluster
GPFS_STORAGE.CLUSTER
Wed Sep  7 13:33:07.488 2016: [W] Command: err 78: mount
GPFS_STORAGE.CLUSTER:gpfs
Wed Sep  7 13:33:07.489 2016: Connection timed out

In the remote cluster, I see:

Wed Sep  7 13:33:07.487 2016: [W] The TLS handshake with node 10.0.0.222
failed with error 447 (server side).
Wed Sep  7 13:33:07.488 2016: [X] Connection from 10.10.0.35 <c0p174>
refused, authentication failed
Wed Sep  7 13:33:07.489 2016: [E] Killing connection from 10.10.0.35, err
703
Wed Sep  7 13:33:07.490 2016: Operation not permitted



Weirdly though on other nodes in the client cluster this succeeds fine and
can mount, so I think I got all the bits in the mmauth and mmremotecluster
configured correctly.

Any suggestions?

Thanks

Simon