Retrieving a user data set from multiple memories

摘要

An apparatus and associated methodology for a data storage system having a data storage space operably transferring user data via input/output (I/O) commands between the data storage system and another device. The data storage space includes a first memory device operably storing location information for a selected user data set corresponding to one of the I/O commands. The first memory also operably stores a first amount of the selected user data set. The data storage space also includes a second memory device different than the first memory device and operably storing a different second amount of the selected user data set. The data storage system has a controller that interleaves an entirety of the selected user data set from the first and second memory devices during execution of another of the I/O commands.

主权项

1. A data storage system comprising:
a data storage space operably transferring data via input/output (I/O) commands between the data storage system and another device, the data storage space comprising:
a first memory device of the storage space operably storing location information for executing the I/O commands; anda second memory device of the storage space different than the first memory device, the second memory device formatted to include an index partition and a data partition; anda controller that is configured, in response to executing an I/O command to write at least a portion of a user data set to the second memory device, to update the location information by copying the index partition to the first memory device, to copy a portion of the user data set to the first memory device, and to subsequently interleave the user data from the first memory device with the user data from the second memory device during execution of another of the I/O commands.