[Ocfs2-users] OCFS2 - panic behaviour and cluster status

spgle spgle at wanadoo.fr
Tue Oct 18 12:09:40 CDT 2005


Hi,
I have a few questions about OCFS2 administration and features :

- I have the following architecture (simple, first step : a one node
cluster...):
   - a iSCSI server
   - a client, using the iSCSI exported device with an OCFS2 filesystem

  ocfs2 is version 1.1.2, linux kernel is version 2.6.12.3 .

  When I run a benchmark (using iozone) on the client on the mounted
ocfs2 fs the kernel
panic when reaching large file.
=>    "ocfs2 is very sorry to be fencing this system by panicing".

In order to end benchmarking i changed the O2CB_HEARTBEAT_THRESHOLD from 7
to O2CB_HEARTBEAT_THRESHOLD=3001, this way the benchmark can finish
without problem.

Is there a way/a feature to avoid panicing, and instead get I/O errors
on system calls
using the OCFS2 fs ?

How to get information about all nodes of the cluster (status of each node,
quorum, DLM usage)?

thanks.





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