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BOOT FROM SAN - CISCO UCS 240 M5

Configuring QLogic BIOS to Boot from SAN

1. Take it into legacy mode 

Go to Compute > BIOS











2. Configure Boot order 

Boot order also must be created . Go to Compute > BIOS  > Configuration Order 




Go to Advanced and create Add SAN Boot . As we have 2 HBA Qlogic card we need to create 2 SAN BOOT and add the slot accordingly



Name : SAN-BOOT-ORDER

Status : Enabled 

Order : 1

Slot : 4

LUN : 0  ( Note : LUN ID must be verified from storage )

Name : SAN-BOOT-ORDER

Status : Enabled 

Order : 1

Slot : 6

LUN : 0  ( Note : LUN ID must be verified from storage )


3. While booting the server, press Ctrl-Q to enter the Fast!UTIL configuration utility.


4. Do one of the following : 

  • If you have only one host bus adapter (HBA), it is selected automatically, and the Fast!UTIL Options screen appears.

  • If you have more than one HBA, you need to select it manually. In the Select Host Adapter screen, use the cursor keys to select the chosen HBA and press Enter.

    Note: Booting from SAN requires choosing the lowest numbered HBA that has any LUNs visible.


As you can see we have 2 HBA card and total in 4 ports . Now we need to select all those 4 ports inorder to use all of the 4 ports for booting from the lun in case of failover.

 In the Fast!UTIL Options screen, select Configuration Settings and press Enter. ( Noted : Inorder to use all 4 ports we need to configure it all of the 4 ports available.)



Go to Adapter Settings and enable Host Adapter BIOS 






Then go into Selectable boot settings and enabled  selectable boot





NOTE : You will need to enable selectable boot and  Host adapter BIOS in all 4 ports available which has not been displayed in this blog.


5. You will ne able to see the initiator in your storage as well. 



You will now need to create a LUN and attached the host accordingly. 





6 .Booting ESXi




As you can see in the below screenshot LUN has been detected.




Reference 

https://kb.vmware.com/s/article/1448
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