Solved

How to Carve up LUN into 2 separate LUNs

Posted on 2008-10-02
3
1,088 Views
Last Modified: 2013-11-14
Hi, I have a 400GB LUN that is not assigned to any server or allocated to any Storage Group, so there's no data to protect on it.  I have Navisphere 6.26 and what I want to do is carve this 400GB LUN into 2 200GB LUNs, then assign the 2 new LUNs to 2 separate Storage Groups.  With Navisphere, how would I go about doing this?

Thank you,


Chad
0
Comment
Question by:TTU_LAW_IT
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 30

Accepted Solution

by:
Duncan Meyers earned 125 total points
ID: 22631097
You can't carve up the LUN into two seperate LUNs. You have to destroy it an recreate it.

 - Remove the LUN from any storage groups that it may be in (beware that the host will complain bitterly. If you have PowerPath, you'll need to delete the paths to the LUN that you removed.)
 - Right click on the LUN and select Unbind...
 - *Read* then accept the warnings. The LUN will then be destroyed.
 - Right click on the RAID group and select Properties. Click on the Properties tab. If the 400GB LUN was at the end all the LUNs on that RAID group, then you'll see that there is a section in green on the left of the partition map, and the right hand side of the map will be blue. If the blue section is surrounded by green bits, click the Defragment button, accept the warning and come back to this in a couple of days time. You'll see a blue 'T' against the CLARiiON - this indicates that the array is transistioning. The blue 'T' will go away when the defrag completes. Note that this is not the same as an opertaing system defrag.
 - Once the defrag completes if applicable, right click on the RAID gropup and select Bind LUN...
 - In the Bind LUN dialogue, enter the size and select the GB or MB radio button. Put 2 in the "number of LUNs to bind" box. Click OK
 - The array will bind two new LUNs
 - Add the LUNs into the storage groups as necessary.
 - Done!

0
 
LVL 1

Author Closing Comment

by:TTU_LAW_IT
ID: 31502401
Thank you, meyersd, your information was spot on.
0
 
LVL 30

Expert Comment

by:Duncan Meyers
ID: 22735888
Thanks! Glad I could help.
0

Featured Post

Best Practices: Disaster Recovery Testing

Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

AWS Glacier is Amazons cheapest storage option and is their answer to a ‘Cold’ storage service.  Customers primarily use this service for archival purposes and storage of infrastructure backups.  Its unlimited storage potential and low storage cost …
When we purchase storage, we typically are advertised storage of 500GB, 1TB, 2TB and so on. However, when you actually install it into your computer, your 500GB HDD will actually show up as 465GB. Why? It has to do with the way people and computers…
This video teaches viewers how to encrypt an external drive that requires a password to read and edit the drive. All tasks are done in Disk Utility. Plug in the external drive you wish to encrypt: Make sure all previous data on the drive has been …
This tutorial will walk an individual through the process of installing the necessary services and then configuring a Windows Server 2012 system as an iSCSI target. To install the necessary roles, go to Server Manager, and select Add Roles and Featu…

726 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question