Compression offloading to raid array storage enclosure

A method comprising:

• obtaining, by a storage controller of a storage system, data pages associated with at least one input-output request;
• and
• providing, by the storage controller, the obtained data pages to at least one processing device of a given enclosure of a plurality of enclosures of the storage system;
• issuing, by the storage controller, a command to the at least one processing device of the given enclosure to perform at least one operation based at least in part on the obtained data pages;
• receiving, by the at least one processing device of the given enclosure, the obtained data pages from the storage controller;
• responsive to receiving the command from the storage controller, generating, by the at least one processing device of the given enclosure, compressed data pages based at least in part on the received data pages;
• and
• storing, by the at least one processing device of the given enclosure, one or more of the compressed data pages on the plurality of drives according to a redundant array of independent disks (RAID) arrangement of the plurality of drives;
• and
• returning, by the at least one processing device of the given enclosure, information associated with the storage of the one or more of the compressed data pages to the storage controller, the storage controller configured to utilize the information to access the one or more of the compressed data pages stored on the plurality of drives.

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 being executable by a storage system, the storage system comprising a plurality of enclosures and a storage controller, each enclosure comprising at least one processing device coupled to memory and a plurality of drives configured in accordance with a redundant array of independent disks (RAID) arrangement;

• the program code, when executed by the storage controller of the storage system, causes the storage controller of the storage system:
• to obtain data pages associated with at least one input-output request;
• and
• to provide the obtained data pages to the at least one processing device of a given enclosure of the plurality of enclosures;
• to issue a command to the at least one processing device of the given enclosure to perform at least one operation based at least in part on the obtained data pages;
• the program code, when executed by the at least one processing device of the given enclosure, causes the at least one processing device of the given enclosure:
• to receive the obtained data pages from the storage controller;
• responsive to receiving the command from the storage controller, to generate compressed data pages based at least in part on the received data pages;
• to store one or more of the compressed data pages on the plurality of drives according to the RAID arrangement;
• and
• to return information associated with the storage of the one or more of the compressed data pages to the storage controller, the storage controller configured to utilize the information to access the one or more of the compressed data pages stored on the plurality of drives.