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Celebrating 25 Years of Using Erasure Codes to Implement RAID

Geoffrey Noer

Sr. Director of Product Marketing

March 19, 2013 - 1:26pm
Categories: 
Object RAID
Panasas News
RAID

Happy birthday, RAID!  Twenty-five years ago, in March 1988, Panasas founder and chief scientist, Dr. Garth Gibson, published the paper “A Case for Redundant Arrays of Inexpensive Disks (RAID)” with co-authors David Patterson and Randy Katz, inventing a concept that would prove central to the storage industry for decades to come. Congratulations to all three of these storage visionaries!

Panasas Parallel File System and RAID

Brent Welch

CTO

October 11, 2011 - 3:32pm
Categories: 
Object RAID
Parallel Storage

In my last post I talked about how the Panasas parallel file system (PanFS) achieves extreme performance for big data sets. It also provides redundancy without the need for hardware RAID controllers. In the attached video, Garth Gibson, Panasas founder and CTO, digs deep into the specifics of file system RAID and how PanFS delivers redundancy as part of the file system itself.

The Benefits of Object RAID

Brent Welch

CTO

September 14, 2011 - 11:59am
Categories: 
Object RAID
Parallel Storage

Traditional RAID is designed to protect whole disks with block-level redundancy.  An array of disks is treated as a RAID group, or protection domain, that can tolerate one or more failures and still recover a failed disk by the redundancy encoded on other drives.  The RAID recovery requires reading all the surviving blocks on the other disks in the RAID group to recompute blocks lost on the failed disk.  As disks have increased capacity by 40% to 100% per year, their bandwidth has not increased substantially. 

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