The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 03, 2014
Filed:
May. 02, 2011
Sandeep Yadav, Santa Clara, CA (US);
Rickard E. Faith, Hillsborough, NC (US);
Subramaniam Periyagaram, San Jose, CA (US);
Blake Lewis, Los Altos Hills, CA (US);
Ashish Prakash, Morrisville, NC (US);
Sandeep Yadav, Santa Clara, CA (US);
Rickard E. Faith, Hillsborough, NC (US);
Subramaniam Periyagaram, San Jose, CA (US);
Blake Lewis, Los Altos Hills, CA (US);
Ashish Prakash, Morrisville, NC (US);
NetApp, Inc., Sunnyvale, CA (US);
Abstract
Overwriting part of compressed data without decompressing on-disk compressed data is implemented by receiving a write request for a block of data in a compression group from a client, wherein the compression group comprises a group of data blocks that is compressed, wherein the block of data is uncompressed. The storage server partially overwrites the compression group, wherein the compression group remains compressed while the partial overwriting is performed. The storage server determines whether the partially overwritten compression group including the uncompressed block of data should be compressed. The storage server defers compression of the partially overwritten compression group if the partially overwritten compression group should not be compressed. The storage server compresses the partially overwritten compression group if the partially overwritten compression group should be compressed.