Transactional commits with hardware assists in remote memory

A storage unit for a storage system, comprising:

• non-persistent memory;
• persistent memory;
• and
• a transaction engine, configured to:
• receive a logical record from a storage node into a transaction engine the storage system;
• write the logical record into a data structure of the transaction engine;
• write, to a command queue of the transaction engine, an indication to perform an atomic update using the logical record;
• and
• transfer each portion of the logical record from the data structure of the transaction engine to the non-persistent memory of the storage system as a committed transaction.

A storage system, comprising:

• a plurality of storage nodes coupled as a storage cluster;
• each of the plurality of storage nodes having one or more storage units;
• each storage unit having non-persistent memory, persistent memory, and a transaction engine with a transaction interlock configured to assure coherency of an atomic update;
• and
• the transaction engine configured to:
• receive a logical record from a storage node into a transaction engine of a storage unit of the storage node;
• write the logical record into a data structure of the transaction engine;
• write, to a command queue of the transaction engine, an indication to perform an atomic update using the logical record;
• and
• transfer each portion of the logical record from the data structure of the transaction engine to non-persistent memory of the storage unit as a committed transaction.