How to find the lun id from esx

[tomtom1]

Hi, I was going through the FC config guide for vSphere 4.1. One Paage 27 under General ESX/ESXi SAN requirements it is mentioned that " For multipathing to work properly, each LUN must present the same LUN IS number to all ESX/ESXi hosts.

Can someone please tell me how can I get this information ?

Thanks

[a_p_]

Can someone please tell me how can I get this information ?

You configure the LUN ID on your storage system when you present the LUN to the hosts.

André

[shirishh2712]

the lun id can be checked from the storage managemnet tool, like we use navisphere, and when you actualy assign storage to your ESX hosts, it shows what configuration you want, at this time you can see on the left hand side there is a column named lun Id.

plz score if its helpful.,

[Simon Zhang]

esxcfg-mpath -b -d naa.***,

it will tell the lun number of naa.***, this number should be the same across all hosts

binoche, VMware VCP, Cisco CCNA

[tomtom1]

I am not sure about this command. It did not work.

I am looking to get this information from the esx side and not from the storage end.

Thanks

[f10]

Here is the output of #esxcfg-mapth -l command that was suggested by binoche earlier

sas.50123456789abcde-sas.123456789abcde-naa.600508b1001037383941424344450800

Runtime Name: vmhba1:C0:T0:L0

Device: naa.600508b1001037383941424344450800

Device Display Name: HP Serial Attached SCSI Disk (naa.600508b1001037383941424344450800)

Adapter: vmhba1 Channel: 0 Target: 0 LUN: 0

LUN:0 is the LUN id in my case, you may try the same on ESX/ESXi host.

If you found this or other information useful, please consider awarding points for "Correct" or "Helpful".

f10

VCP3,VCP4,HP UX CSA

[a_p_]

You could also take a look at the PowerCLI script LucD provided in http://communities.vmware.com/message/1537267

This way you wouldn't have to log in to each ESX host separately.

André

[a_p_]

Almost forgot to mention the GUI to show the LUN-IDs.

Either:

Click Configuration tab > Storage Adapters

On the Storage Adapters list, select a controller and you will see the device list in the lower pane

or:

Click Configuration tab > Storage

Switch to the "Devices" view

André