Sunday 12 October 2014

Windows Server 2012 R2 booting from SAN - Cisco B200M3 - VNX2 - configuration

Prerequisites:
Zoning on N5K is configured, server profile on UCS is configured, VNX2 boot lun is created and added to storage group.

1.) Create new boot policy in service profile template with one path to boot lun.




 2.) Download UCS related drivers from cisco.com


3.) Check what model of HBAs you are using:


4.) You can create image from fnic drivers extracted for example using Deamon Tools:



4a.) Choose MLOM folder:








5.) Add Windows Server 2012 R2 image :



6.) During boot we can see that only one path is available :



7.) According to our boot policy we first boot from CD-ROM (iso imange). Start installing Windows :



7a) We choose Windows Server 2012 R2 with GUI :





 8.) We loading cisco fnic drivers :





9.) We start seeing volumes in our case 40GB. We get alert that the amount of space is smaller that 410346MB recommendation but I click Next :

10.) Windows installer started:


11.) Error message "Windows could not finish configuring the system. To attempt to resume configuration, restart the computer" pop up after installation we restarted Blade but error manifested again :


12.) I checked release note again and noticed that 32GB minimum recommendation is for Windows Server 2012 R2 Core version without GUI :

 13.) I expanded boot_lun to 60GB. You can expand or recreate from scratch.




 






14.) I follow steps 1-9 and encounter the same warning about 410346MB even if I had 60GB space. Clicked next and successfully installed Windows Server 2012 R2.






15.) I changed boot policy to default with 4 paths in Service Profile Template.



16.) After reboot Windows login window pop up:



17.) I login as Administrator and added Multipath I/O feature:



18.) We see that our boot LUN is seen by MPIO.




I hope you find this helpful.

The End.

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