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Robert, I am also seeing the hang on a second
mount, No errors reported in logs. Did you get an answer?. Thanks, Carl Bavington mob +44 (0)7793 758327 From: linux-cluster-bounces@xxxxxxxxxx
[mailto:linux-cluster-bounces@xxxxxxxxxx] On
Behalf Of Robert All, I
have a question regarding the latest implementation of GFS 6.0 with RedHat
Linux 3.0 Enterprise. What my company has going on is this: We have
a SAN project coming up but we do not have the SAN or a similar type shared
storage device available. We have the node machines on hand and are
trying to work through the GFS implementation as we are new to GFS (We have run
RedHat Linux since version 5.0 and all the flavors in between.). We have
tried to simulate the SAN environment by utilizing the GNBD software and we
have followed the instructions available at: http://www.redhat.com/docs/manuals/csgfs/admin-guide/s1-ex-slm-ext-gnbd.html This
is the LOCK_GULM, SLM External, and GNBD example of GFS. We
have not had any problems getting the shared devices, pools, and filesystems
created as followed in the documentation. What we have happening is that
when we mount the GFS filesystem on one node and then we try and mount the
filesystem on the second node, the second node will hang when issued the
command to mount the filesystem. No errors are reported on console or in
logs. No errors are reported in the Lock Server either. Everything
appears to be working correctly as the log information for both machines at
that instant are the same, ie, the one that is hung, has the same log messages
as the one that is not hung. When
I go to node one, with node two still trying to mount the filesystem, and
unmount the filesystem, node two immediately finishes the mount command and
everything is fine with node two. However, when trying to mount node one
again, it just hangs and so on. It is only allowing one node to mount the
filesystem at once. The configuration files are all the generic examples
given in the documentation with the fencing mechanism as GNBD (Tried fencing
with manual and the same situation exists with that method.). I can
provide all configuration files and also give log file information if this
problem isn’t something that experienced GFS users know what the problem
may be. Thank
you all for your time. Robert Fidelity
Communications |
