[GRLUG] booting from iscsi target

[scott.tanner at comcast.net]

Hey Mike, 
Did you ever get the information you were looking for on this? 

I have a little experience with an iscsi arrays, and lab'd up a test environment using the Linux Target framework (tgt) on one (beefy) server and the iscsi-initiator software on a few clients. My setup was a little different as it's CentOS/Xen based, but most of the design principles would be the same. 

Added warning - not all ISCSI systems are created equal! Sadly my test environment GREATLY outperformed the Infortrend ISCSI array we purchased, averaging around %40 better performance for read/write block I/O (bonnie++). After a growth spurt in our QA department which doubled the VM count, the ISCSI system was demoted to bulk storage and a new SAS-based SAN was just purchased. I've been told by some storage specialists that many providers tweak the ISCSI controllers for better throughput, apparently Infortrend does not. 


Regards, 
Scott 

----- Original Message -----
From: "Mike Williams" <knightperson at zuzax.com> 
To: "Grand Rapids Linux Users Group" <grlug at grlug.org> 
Sent: Tuesday, December 20, 2011 2:48:02 AM 
Subject: [GRLUG] booting from iscsi target 

I remember somebody on the list or at The Warehouse was doing this. 
Whoever you are, can I pick your brain on duplicating that feat? I'm 
want to get a Virtualbox Windows 7 guest to boot, first from the host 
Ubuntu 11.10 but eventually from a guest Windows 2008, to prove to my 
employer that Windows 7 will run happily disklessly. 

I'm trying to learn about five new things at once here, and my brain is 
overflowing! 

Thanks. 


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