[Linux-cluster] GFS: FS Mount Issues

[Stephen Willey]

Have you mkfs'd the filesystem with enough journals for each machine? If 
you only created one journal I guess it'd do this...

Stephen




Bavington, Carl wrote:

> 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 at redhat.com 
> [mailto:linux-cluster-bounces at redhat.com] *On Behalf Of *Robert
> *Sent:* 26 July 2004 16:47
> *To:* linux-cluster at redhat.com
> *Subject:* [Linux-cluster] GFS: FS Mount Issues
>
> 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
>
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