[ale] fiber channel mounts

[Jim Kinney]

I have a netapp joined by fiber channel to 2 linux head end servers. I'm
using multipath fiber channel in an active/active mode for maximum data
throughput.

box 1 can write a file and read that file is there. Box 2 can't see the file
exists.
box 2 can write file and see it on the netapp but box one does not see it.

run sync on both boxes and umount/mount the netapp storage space again.
both box 1 & 2 see the file written from box 1 but the file written from box
2 is gone.

this is bad. Clearly I have a misconfiguration somewhere! Box 2 shows errors
related to ext3 journal corruption so ext3 is NOT a good choice.

Box 2 is supposed to be a failover database and the netapp is the storage
for the database files. I would prefer for the failover to be closer to a
hot standby than a cold standby but it looks like I can't keep the netapp
partition mounted on box 2 if box 1 is still live. I'm not running the
database at all on box 2.

-- 
-- 
James P. Kinney III
Actively in pursuit of Life, Liberty and Happiness
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