Sandeep Karmarkar

Title: Innovations by Sandeep Karmarkar

Introduction

Sandeep Karmarkar is a notable inventor based in San Jose, California. He has made significant contributions to the field of storage systems, holding a total of four patents. His work focuses on methods that enhance efficiency and cost savings in data storage.

Latest Patents

Karmarkar's latest patents include innovative methods for estimating cost savings using deduplication and compression in a storage system. One method involves accessing data from a unit of storage over a communication network, where each block of data is uncompressed. A plurality of blocks is parsed from the data, and fingerprints are generated using a hash algorithm. The deduplication ratio is estimated using a hyperloglog algorithm, which compartmentalizes the blocks into buckets defined by precision bits of the fingerprints. Additionally, an effective compression ratio is estimated using a second set of buckets defined by ranges of compression ratios.

Another significant patent focuses on access-based eviction of blocks from solid-state drive cache memory. This method allocates CPU cycles among processes in a storage system. It includes operations for maintaining segments in a read-cache memory, where each segment contains blocks. The block temperature is determined by the frequency of access, and the segment with the lowest temperature is selected for eviction. Blocks with a temperature above a certain threshold are identified and written back to the first memory.

Career Highlights

Throughout his career, Karmarkar has worked with prominent companies such as Hewlett Packard Enterprise Development LP and Nimble Storage, Inc. His experience in these organizations has contributed to his expertise in storage solutions and data management.

Collaborations

Karmarkar has collaborated with notable professionals in the field, including Umesh Maheshwari and Rajat Sharma. These collaborations have further enriched his work and innovations in storage systems.

Conclusion

Sandeep Karmarkar's contributions to the field of storage systems through his patents and collaborations highlight his innovative spirit and expertise. His work continues to influence advancements in data management and efficiency.