Using an EMC AX100 SAN with Debian and a Dell 1955 blade

[Harald_Jensas at Dell.com]

Assuming SPA is the owner of the LUN you are seeing i belive it is correct that the connections to SPB should see the device as inactive or passive.
 
Have a look at this article regarding Multipath and Linux, maby it will help.
 
http://www.dell.com/downloads/global/power/ps3q06-20060189-Michael.pdf
 
 
 
--
Harald Jensås


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	From: linux-poweredge-bounces at dell.com [mailto:linux-poweredge-bounces at dell.com] On Behalf Of Stephen Carr
	Sent: den 15 mars 2007 23:16
	To: linux-poweredge-Lists
	Subject: Using an EMC AX100 SAN with Debian and a Dell 1955 blade
	
	

	Okay, I've gotten pretty far in the process of setting up a AX100 array with a Dell 1955 blade with the Qlogic HBA's (QME2462's) by using the NaviSphere Utility but have run into a wall trying to get Multipath to work with the SAN. Has anyone had experience getting multipath to work with an EMC AX100 (or something similar). I just can't get it top see the multiple connections as one device no matter what I try. I have two HBA connections and each connection can see both Storage Processors so you get something like this

	/dev/sdb - active HBA1 to SPA (I have a partition (sdb1) that works fine stand alone 
	/dev/sdc - inactive HBA1 to SPB (fdisk doesn't see this device at it is inactive) 
	/dev/sdd - active HBA2 to SPA (it sees the sdb1 partition as sdd1 and can be mounted like sdb1) 
	/dev/sde - inactive HBA2 to SPB (fdisk doesn't see this device at it is inactive) 

	Any type of grouping I try fails so any leads would be greatly appreciated (I can post my multipath.conf file if needed)

	Thanks in advance. 

	Stephen Carr 
	Network Administrator II 
	Bastyr University 
	scarr at bastyr.edu 


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