Single-phase commit for replicated cache data

A computer system, comprising:

• a processor system;
• and
• a computer storage medium that stores computer-executable instructions that are executable by the processor system to at least:
• identify a write input/output (I/O) operation;
• identify a log to be replicated based on the write I/O operation;
• persist the log to local non-volatile memory in the computer system;
• replicate the log to a plurality of remote hosts, wherein each remote host of the plurality of remote hosts stores the log in a corresponding local non-volatile memory in the remote host without de-staging the log to a backing store;
• commit the write I/O operation after replicating the log to at least a subset of the plurality of remote hosts that comprises a quorum, wherein the quorum comprises less than a majority of the plurality of remote hosts;
• and
• de-stage the log to the backing store based on committing the write I/O operation.

A computer storage medium that stores computer-executable instructions that are executable by a processor system to at least:

• Identify a write input/output (I/O) operation;
• identify a log to be replicated based on the write I/O operation;
• persist the log to a persistent non-volatile memory in a computer system;
• replicate the log to a plurality of remote hosts, wherein each remote host of the plurality of remote hosts stores the log in a corresponding local non-volatile memory in the remote host without de-staging the log to a backing store;
• commit the write I/O operation after replicating the log to at least a subset of the plurality of remote hosts that comprises a quorum;
• and
• de-stage the log to the backing store based on committing the write I/O operation.