Write Performance In Solid State Storage by Recognizing Copy Source to Target Operations and Only Storing Updates Instead of Entire Block

摘要

A mechanism is provided in a data processing system for accessing a solid state drive. Responsive to receiving request to write an update to a block of data in the solid state drive with an update option set, the mechanism reads the block of data from the solid state drive. The mechanism determines a difference between the update and the block of data. The mechanism compresses the difference to form an update record. The mechanism stores the update record and modifies metadata of the block of data to reference the update record.

主权项

1. A computer program product comprising a computer readable storage medium having a computer readable program stored therein, wherein the computer readable program, when executed on a computing device, causes the computing device to:
responsive to receiving a request to write an update to a block of data in the solid state drive with an update option set, read the block of data from the solid state drive; determine a difference between the update and the block of data; compress the difference to form an update record; store the update record; and modify metadata of the block of data to reference the update record.