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[Xen-users] Order of Operations for Attaching an iSCSI Disk to a Pool (M

To: "xen-users@xxxxxxxxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-users] Order of Operations for Attaching an iSCSI Disk to a Pool (Multipath)
From: Evan Sarmiento <esarmiento@xxxxxxxxxxxxx>
Date: Fri, 25 Mar 2011 16:32:43 -0400
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Thread-topic: Order of Operations for Attaching an iSCSI Disk to a Pool (Multipath)
Hi,

I have three hosts successfully multipathing 3 LUNs, although, it took me a lot 
of work to get there. I used both XenCenter on XenCloud 1.0 and CLI, but, I've 
had just as much trouble in XC 0.5. 

1. Should I do an iscsiadm login after I do an iscsiadm discovery, or, just 
perform a discovery and then create the SR? 
2. Often new paths are not detected, does Xen Cloud effectively try to log the 
host out of a LUN and then log it back in?
3. Is there any way I can have new paths detected without performing the 
following ritual-
        a. Service multipathd restart
        b. Iscsiadm -u, iscsiadm -l
        c. Multipath
        d. Multipath -l
        e. Mpathutil status

Thanks,
Evan

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