I have 15x SAS drives in a Dell MD1000 enclosure, attached to an LSI 9200-16e.  
This has been working well.  The system is boothing off of internal drives, on 
a Dell SAS 6ir.

I just tried to add a second storage enclosure, with 15 more SAS drives, and I 
got a lockup during Loading Kernel.  I got the same results, whether I daisy 
chained the enclosures, or plugged them both directly into the LSI 9200.  When 
I removed the second enclosure, it booted up fine.

I also have an LSI MegaRAID 9280-8e I could use, but I don't know if there is a 
way to pass the drives through, without creating RAID0 virtual drives for each 
drive, which would complicate replacing disks.  The 9280 boots up fine, and the 
systems can see new virtual drives.

Any suggestions?  Is there some sort of boot procedure, in order to get the 
system to recognize the second enclosure without locking up?  Is there a 
special way to configure one of these LSI boards?

Thanks,
   Rob
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