1. what is the difference between a "Service Profile" and Virtual machine? Are they both different names of same concept?
NO, not at all, a SP is a new concept, introduced with UCS architecture; it allows you to abstract the hardware of a server. It defines a template and/or a logical server: eg. number of vhba's, number of vnics, mac address pwwn/nwwn, BIOS version, boot policy/boot order. The values of mac, pwwn, nwwn, UUID are taken out of predefined pools, therefore they are hardware independent. Then you associate a SP with a physical blade, which then imposes all the above configuration on the real physical server. The relationship between SP and physical server is 1 to 1; if you need 10 ESXi servers, you need 10 SP's.
UCS is OS agnostic, it has no clue what the installed OS is. Therefore in UCS there are no OS specific agents.
VM appear in the context of server virtualization, and are completely different from SP.
Thanks Wdey for helping out. A small clarity furhter needed is that, you said "if you need 10 ESXi servers, you need 10 SP's". Can these 10 SP's be on a single physical blade server or there should be 10 physical servers for each SP?
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