SpycerBox Flex Kernel Panic

Robert Leong -

After adding a SpycerBox Flex Extension to the SBF, seeing kernel panics. Other symptoms is Fibre Channel link LEDs on the QLogic boards are all on or all flashing (instead of link of 2, 4 or 8). 

Added 2nd Quad FC card to SBF, 1st Quad all 4 ports are Target modes, 2nd Quad only 1 port used as Initiator.

The fix: 

Date: Wed, 29 Jun 2011 14:07:02 +0200 
Subject: AW: [DVS#2025939] Support Help Needed at Deluxe NY 

Hi Robert, 

we reduced the maximal number of concurrent I/O-requests to the LUNs (at the primary Spycerbox). 
Under heavy I/O load the driver dropped IO-requests, therefore the IO-errors in the logs. 

You can change the maximal number of requests for all StorNext LUNs in the file 
nr_requests=32 (default: 8192) 


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