EMC navisphere 6

Thanks for your reply. No lun is not participating to any kind of replication.

The LUN is participating in any kind of replication (source/destination) ?

What we have done here. We destroy one of storage group and assighn lun to another storege group.

Please consider moving this question as-is (no need to recreate) to the proper forum for maximum visibility.  Questions written to the users' own "Discussions" space don't get the same amount of attention and can go unanswered for a long time.

You can do so by selecting "Move" under ACTIONS along the upper-right.  Then search for and select: "CLARiiON Support Forum".

CLARiiON Support Forum

As Vipin has suggested, it likely is in use by an array feature (such as MirrorView or SAN Copy) or the component's driver is still bound to it even though all indications in the GUI suggest otherwise.  Can you run the following commands on the metaLUN and the component LUNs:

naviseccli -h <SP A or B IP> getlun -messner <lun number> -stack

Have you tried the command Christopher suggested ?

Vipin , i am new for storage side. Can you briefly guide ? What is use of this command?

The naviseccli getlun command returns information about a LUN and the customer replaceable units (CRUs) that make up that LUN.

Refer to Page Number 187 of http://corpusweb130.emc.com/upd_prod_VNX/UPDFinalPDF/jp/Command_Reference_for_Block.pdf for detailed information about different switches which can be used to obtain desired result with CLI.

You mean to say we can get the information of assign lun with use of this command. It will not affect to other storage groups. right????

It will not have any impact. It will only list the features of the LUN.

Note in your screen capture, that the metaLUN has not been expanded to it's total size - you have selected "Current Capacity" instead of "Maximum Capacity". When you create a metaLUN to expand the capacity, on the second to last screen, you have the option of selecting Current (what the original LUN is) or Maximum (what the capacity will be if you add the original and the new capacity). So the capacity of the LUN will only be 1TB rather than 1.3TB. In order to get this extra space, you would need to select the Maximum Capacity selection then run whatever utility on the host to see the extra space.

I've attached the Best Practices Guide for MetaLUNs.

glen

glen,

That is the issue though.  The user is unable to select Maximum Capacity.

We need the user to see what software stack is associated with the LUN and are waiting on the output of the command provided above.  Using a quick example, for instance, if it is associated with a MirrorView mirror, you won't be able to resize it as both LUNs need to be of the same capacity.