Sequential read request management in data storage system environment

A computer program product comprising a processor-readable storage medium having encoded therein executable code of one or more software programs, wherein the one or more software programs when executed by a processor implement the steps of:

• maintaining a host-based memory for a host computing device, wherein data obtained from a storage array in response to one or more read requests is stored in the host-based memory, the storage array comprising an array-based memory and configured to perform one or more data pre-fetch operations;
• monitoring at the host computing device for the occurrence of a set of sequential read requests, wherein the set of sequential read requests comprises two or more sequential read requests;
• and
• sending the two or more sequential read requests of the set from the host computing device together to the storage array even when one or more read requests of the set of sequential read requests match data stored in the host-based memory, such that the storage array is enabled to perform one or more data pre-fetch operations and to store pre-fetched data in the array-based memory responsive to the set of sequential read requests.

A method, comprising:

• maintaining an array-based memory for a storage array, wherein data stored in the array-based memory comprises data obtained by the storage array in response to one or more read requests sent from a host computing device, the host computing device comprising a host-based memory;
• receiving at the storage array a set of sequential read requests from the host computing device even when one or more read requests of the set of sequential read requests match data stored in the host-based memory, wherein the set of sequential read requests comprises two or more sequential read requests sent together from the host computing device to the storage array;
• and
• performing one or more data pre-fetch operations and storing pre-fetched data in the array-based memory responsive to the set of sequential read requests.

A computer program product comprising a processor-readable storage medium having encoded therein executable code of one or more software programs, wherein the one or more software programs when executed by a processor implement the steps of:

• maintaining an array-based memory for a storage array, wherein data stored in the array-based memory comprises data obtained by the storage array in response to one or more read requests sent from a host computing device, the host computing device comprising a host-based memory;
• receiving at the storage array a set of sequential read requests from the host computing device even when one or more read requests of the set of sequential read requests match data stored in the host-based memory, wherein the set of sequential read requests comprises two or more sequential read requests sent together from the host computing device to the storage array;
• and
• performing one or more data pre-fetch operations and storing pre-fetched data in the array-based memory responsive to the set of sequential read requests.

An apparatus, comprising:

• a memory;
• and
• a processor operatively coupled to the memory to form at least a part of a host and configured to:
• maintain a host-based cache, wherein data obtained from a storage array in response to one or more read requests generated by an application executing on the host is stored in the host-based cache, the storage array comprising an array-based cache and configured to perform one or more data pre-fetch operations in accordance with the array-based cache;
• monitor for the occurrence of a set of sequential read requests from the application, wherein the set of sequential read requests comprises two or more sequential read requests;
• and
• send the two or more sequential read requests of the set from the host computing device together to the storage array even when one or more read requests of the set of sequential read requests match data stored in the host-based memory, such that the storage array is enabled to perform one or more data pre-fetch operations and to store pre-fetched data in the array-based memory responsive to the set of sequential read requests.

An apparatus, comprising:

• a memory;
• and
• a processor operatively coupled to the memory to form at least a part of a storage array and configured to:
• maintain an array-based cache, wherein data stored in the array-based cache comprises data obtained by the storage array in response to one or more read requests sent from a host computing device, the host computing device comprising a host-based cache;
• receive at the storage array a set of sequential read requests from the host computing device even when one or more read requests of the set of sequential read requests match data stored in the host-based memory, wherein the set of sequential read requests comprises two or more sequential read requests sent together from the host computing device to the storage array;
• and
• perform one or more data pre-fetch operations and store pre-fetched data in the array-based memory responsive to the set of sequential read requests.