Dual-Port Interposer For Storage Drives

An apparatus, comprising:

• a host interface configured to couple a dual port interface selected among a first interface protocol and a second interface protocol;
• a drive interface configured to couple a single port storage drive;
• and
• an interposer processor configured to detect among a first interface protocol and a second interface protocol at the host interface, transfer storage transactions received over the dual port interface in a storage format, and process indications of which port among the dual port interface supplied each of the storage transactions against one or more criteria to order the storage transactions into a queue shared among the ports, wherein the single port storage drive is issued the storage transactions from the queue according to the order.

A storage system, comprising:

• a chassis configured to couple interposers carrying storage drives and comprising communication interfacing circuitry for storage links of the interposers;
• wherein each of the interposers comprise:
• a storage device connector configured to couple a dual port interface selected among a first interface protocol and a second interface protocol;
• a protocol unit configured to obtain communications received over the dual port interface and transfer storage transactions in a storage format;
• and
• a transaction unit configured to obtain the storage transactions in the storage format and process indications of which port among the dual port interface supplied each of the storage transactions against one or more criteria to order the storage transactions into a queue shared among the ports, wherein a single port storage drive coupled to the storage interposer is issued the storage transactions from the queue according to the order.