I am writing this post to show the process on how to provision LUN’s from Cisco UCS Invicta to ESX host in 3 steps hope you enjoy the post.
- Create a default LUN and add MAP ID 0 ‘zero’ when ever you are provisioning a new ESX rule of thumb for Invicta is add a default lun lun0_ default with MAP ID 0
- Keep all the LUN’s with the same MAP id on each host when provisioning them. ( Caution : If you do not give the same MAP ID for a LUN which is already provisioned and the lun has VM running. The LUN comes up as a new lun to be added to VMware so the Administrator if he is not aware of this issue may end up formating it assuming its a new LUN to provision using VMFS 5.
- You need to remember that you can right click and drag and drop luns to map them.
In our environment I have created a default lun with 10 GB and never provision this on VMware, however always add this default lun first with MAP ID 0 to any ESX host you want to provision.
Login to the invicta with admin or superuser account.
Step 1: Creating a LUN
Click on LUN Configuration and LUNs and Click on Create LUN
As I have mentioned in the Notes at the top that we need to first create a default lun which is what I am creating below. just fill in the details I call it lun0_default
The size of this lun can even be 1 GB as you are not going to use this lun . I have put 10 GB a I have 65 TB of thin provisioned disk and I am not going to provision this lun its just what is recommended by Cisco documentation to have a default lun 0 provisioned on each host with MAP ID 0
I have created another LUN of 1 TB calling it lun1 as shown below
Step 2. Adding a Host Initiator Group
Click on LUN Configuration and Initiator Groups and Click on Create New Group