Thanks for all of the suggestions everyone. I'm back up and running.
The problem was we were using a patched grub and it didn't update the device map properly
whenever I installed the new kernel.

If anyone would like more details for educational and baldness prevention reasons
ping me off list.


Thanks,
Adam

On 12/14/10 3:24 PM, Byron Como wrote:
In your kernel upgrade, did you use the stock kernel? If so, you might want to try to compile the new kernel using config and be careful to include the appropriate raid settings in the new kernel configuration. Been a while since I've done any kernel configs - I'm on all Windblows boxen right now.

On 12/14/2010 12:35 PM, Adam Yates wrote:
Hi all;
I'm having a few problems with a fileserver at work and would like to bounce some ideas off anyone that could help. I'm ayates83 on #brlug on irc.freenode.net (does anyone still inhabit the room?)
Email is fine too.

Basic setup is this:

2 sets raid-6. 22 drives in each set plus a hot spare.

After I upgraded a kernel, the drives randomly reassign letters under the raid and cause the set to break on boot. I can use mdadm --assemble --scan -fv to forcefully bring the
raid back online but it crashes soon thereafter.

Any input is appreciated!

Thanks,
Adam



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Adam Yates
Systems Administrator -- Research Infrastructure
Center for Computation and Technology
232 Johnston Hall,
Baton Rouge, LA 70803
W: 225.578.8235    C: 225.663.0218
<[email protected]>


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