Patent ID: 8375184

Claim:
An apparatus comprising: a first canister to control storage of data in a storage system including a plurality of disks, the first canister having a first processor configured for uniprocessor mode and having a first internal node identifier, and a first system memory to cache data to be stored in the storage system; and a second canister to control storage of data in the storage system and coupled to the first canister via a point-to-point (PtP) interconnect, the second canister including a second processor configured for uniprocessor mode and having a second internal node identifier and a second external node identifier to identify the first processor, and a second system memory to cache the data to be stored in the storage system, wherein the first and second system memories are to store a mirrored copy of data stored in the other system memory, wherein the mirrored copies are communicated by non-coherent transactions via the PtP interconnect, wherein the PtP interconnect is according to a cache coherent protocol and is modified to communicate between the first and second canisters without snoop transactions of the cache coherent protocol.