Similar LUNs getting displayed differently on VMware

Question

Hello all,

I noticed that similar LUNs are getting displayed differently at the VMware on one of my customer's setup.

Two LUNs from VNX5500, created with VSI are appearing to VMware, one as DGC Fiber Channel Disk and the other as EMC disk. No issue has been experienced by the customer or any warning as such.

Just curious what could have caused this mismatch and possibly a way to fix it. I have attached screenshots which should give a better idea. ("Device" column)

Any advice is appreciated!

Regards,

Yajith

RRR · Answer

Other than that I like the naa name, because you can really match a datastore to a LUN I really have no clue.

dynamox · Answer

if you select that datastore and go to properties, what does it say under Extents? Then if you look at Manage Paths, anything odd about that datastore vs the other ones ?

PieroYao · Answer

Yajith, would you please upload all the VSI logs if you created both of datastores with USM? Which device name did you prefer? 'EMC xxx' or 'GDC xxx'?

PieroYao · Answer

Yajith, would you please upload all VSI logs in zip file? Thanks! Best Regards, Piero Yao EMC China R&D Center 2F, Building #2, KIC Plaza No. 252 Songhu Road, Shanghai 200433 Tel: (8621) 60951100*3277

Anonymous User · Answer

Hi RRR, the LUNs can be mapped to datastores without the naa name..I'm just wondering what could have made the two LUNs to appear differently in the vSphere client.

Anonymous User · Answer

Hi Piero, Thanks for your response. Please give me sometime to revert with the logs

Anonymous User · Answer

Hi Piero, just to clarify, I created these two LUNs from the VMware vSphere client via the VSI plugin.

Anonymous User · Answer

Hi dynamox, I will check this info. and revert soon as possible.

christopher_ime · Answer

I will preface it by saying it is highly unlikely; however, there is a configuration file that controls whether it shows:

1) "traditional" name: naa.

2) or the "friendly" name: EMC Disk - -

Then if shown, the ": " is the partition number such as the ":1" which is at the end of each of your device names whether traditional or friendly.

The configuration file name is:

unified_plugin.ini

It is located in the user's AppData directory as follows:

%AppData%\Roaming\EMC\Unified Storage\Config

The specific value controlling this is:

CustomizeScsiLunDisplayName

1) If set to "True" (default): displays the friendly name

2) If set to "False": displays the traditional name

Could you verify that it is properly set to "True"?

VNX

Similar LUNs getting displayed differently on VMware

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