1. A computing system comprising:a rack;
a plurality of servers coupled to the rack; and
a plurality of cooling canisters mounted in the rack, wherein the plurality of cooling canisters are mounted in a space in the rack adjacent to the plurality of servers, wherein individual ones of the cooling canisters comprise:
a canister body configured to couple between a subset of the plurality of servers and one or more fans of a plurality of fans such that air flowing through the subset of servers flows through the canister body;
a sealing surface configured to seal an end of the canister body with a periphery of the subset of servers to form a substantially air-tight seal between the canister body and the sub-set of servers; and
a plurality of louvers mounted on the end of the canister body, wherein the plurality of louvers are adjacent to the subset of servers forming the substantially air-tight seal with the canister body; and the plurality of fans, wherein respective ones of the plurality of cooling canisters are coupled with one or more respective fans of the plurality of fans;
wherein, a particular cooling canister of the plurality of cooling canisters is coupled with a particular subset of the plurality of servers and another cooling canister of the plurality of cooling canisters is coupled with another subset of the plurality of servers;
wherein, the particular cooling canister and the other cooling canister are configured to facilitate air flow isolation between an air flow through the particular subset of servers and another air flow through the other subset of servers.