Obtaining ISO Image From cisco.com
To find the ISO file download for your server online, follow these steps:
Click Unified Computing in the middle column.
Click Cisco UCS C-Series Rack-Mount Standalone Server Software in the right-hand column.
Click the name of your server model in the right-hand column.
In the Select a Software Type list, select Unified Computing System (UCS) Server Diagnostics Utility.
The Download Software page appears listing the release version and the UCS-SDU image.
Click Download Now to download the ISO file.
Verify the information on the next page, then click Proceed With Download. If prompted, use your cisco.com credentials to log in.
Continue through the subsequent screens to accept the license agreement and browse to a location where you want to save the SDU ISO file.