[Linux-cluster] How to use GFS filesystem (GNBD)?

[Shih-Che Huang]

Hi,
I have three PCs for my nodes and have done the set up for GFS file system.
I created the pool (pool0) and mounted the GFS file systems on each
node by following commands

#gfs_mkfs -p lock_gulm -t alpha:gfs1 -j  /dev/pool/pool0 
#mount -t gfs /dev/pool/pool0 /gfs1

How to test them to see if they are running well?
How to use GFS file system?
Could you give me some example?

Thanks! 
-- 
Shih-Che Huang