[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [Z] objectives service level 2nd 3rd 4th observability 2nd 3rd 4th 5th 6th 7th 8th 9th operating systems 2nd 3rd 4th 5th 6th basic automated install hosting image based independent independent images installation multiple partitions tools virtualization operational activities 2nd efficiencies maturity 2nd model 2nd operations automation business cost effective infrastructure major types principles of proactive server centric opportunities application-level virtualization grid applications implementation organizational optimization 2nd 3rd business level data center policy based organizational boundaries maturity potential variations outages 2nd 3rd 4th 5th 6th |