ISCSI - EqualLogic PS

MrMagoo
MrMagoo used Ask the Experts™
on
I have an existing LUN that I am making available to a second server through ISCSI, the initiator picks up the LUN and successfully logs on using chap.  In the disk management tool on Server Manager, you can see the disk, it is not labeled nor does it have a letter assigned, in the bottom pane you can see the disk and the partition, when I right click on the partition for more options all are grayed out except Delete volume and Help.  I have successfully attached this same LUN to a VM using VMWare ISCSI.  What am I missing?
Comment
Watch Question

Do more with

Expert Office
EXPERT OFFICE® is a registered trademark of EXPERTS EXCHANGE®
Paul SolovyovskySenior IT Advisor
Top Expert 2008

Commented:
Are the servers configured wiht Microsoft Clustering Service?  If they are not then you cannot connect the same LUN to two different hosts.  This will corrupt your data.  Clustering software allows for the OS to keep track of which server is accessing the data at any point in time, without this you will have issues.

Author

Commented:
No Clustering service installed or configured, only roles installed on the server are WSUS and IIS.
Paul SolovyovskySenior IT Advisor
Top Expert 2008
Commented:
If you are trying to connect the same LUN on both hosts you are looking at corrupting your data now or later as well as having one system resignature the LUN and wipe it entirely.
Success in ‘20 With a Profitable Pricing Strategy

Do you wonder if your IT business is truly profitable or if you should raise your prices? Learn how to calculate your overhead burden using our free interactive tool and use it to determine the right price for your IT services. Start calculating Now!

Top Expert 2009

Commented:
have you initialized the disk in disk management?

Author

Commented:
Paulsolov - The LUN will only be accessed by one server at a time.

Charlestasse - I can't do anything with the disk as all options are grayed out, the status shows online, i can bring it offline but thats about it.
Senior IT Advisor
Top Expert 2008
Commented:
If you have it mapped to both servers they are accessing it at the same time.  The only way it would work is if you dismount, mount to new server and keep old disk signature (otherwise it will format it).  Having it appear to both servers at the same time is a no-no even though only one may be using it

Author

Commented:
Moved data to new LUN and attached that LUN to new server.

Do more with

Expert Office
Submit tech questions to Ask the Experts™ at any time to receive solutions, advice, and new ideas from leading industry professionals.

Start 7-Day Free Trial