Disk array enclosure configured for metadata and data storage processing

A method comprising:

• receiving a write operation comprising data to be stored on at least one of a plurality of data storage devices of a disk array enclosure of a storage system by an enclosure controller of the disk array enclosure, the data storage devices being configured to store data in a plurality of stripes, at least a portion of each stripe being stored on each of the data storage devices, the plurality of stripes being grouped into respective stripe ranges;
• determining a logical identifier for the data based at least in part on the received write operation;
• determining a physical location on the at least one of the plurality of data storage devices based at least in part on the logical identifier;
• storing the data on the at least one of the plurality of data storage devices at the physical location;
• updating metadata stored on at least one metadata storage device of the disk array enclosure based at least in part on the storage of the data at the physical location, the metadata comprising a plurality of stripe range metadata pages each corresponding to a respective stripe range and a plurality of stripe metadata pages each corresponding to a respective stripe of the plurality of stripes, the stripe range metadata pages being different than the stripe metadata pages;
• and
• returning the logical identifier as a response to the received write operation;
• wherein the method is implemented by the enclosure controller of the disk array enclosure.

A computer program product comprising a non-transitory processor-readable storage medium having stored therein program code of one or more software programs, the program code when executed by at least one enclosure controller of a disk array enclosure of a storage system, causes the at least one enclosure controller:

• to receive a write operation comprising data to be stored on at least one of a plurality of data storage devices of the disk array enclosure, the data storage devices being configured to store data in a plurality of stripes, at least a portion of each stripe being stored on each of the data storage devices, the plurality of stripes being grouped into respective stripe ranges;
• to determine a logical identifier for the data based at least in part on the received write operation;
• to determine a physical location on the at least one of the plurality of data storage devices based at least in part on the logical identifier;
• to store the data on the plurality of data storage devices at the physical location;
• to update metadata stored on at least one metadata storage device of the disk array enclosure based at least in part on the storage of the data at the physical location, the metadata comprising a plurality of stripe range metadata pages each corresponding to a respective stripe range and a plurality of stripe metadata pages each corresponding to a respective stripe of the plurality of stripes, the stripe range metadata pages being different than the stripe metadata pages;
• and
• to return the logical identifier as a response to the received write operation.