DATE: Thursday, March 3, 2005
TIME: 12:00 pm - 1:00 pm
PLACE: Wean Hall, Room 8220

Paul Koning
EqualLogic, Inc.

Transparently scalable storage --
the EqualLogic Peer Storage Architecture

On storage server networks each storage array is generally a separate network node. This means it is seen by storage clients as a distinct service with a distinct address. Growth (scaling) then becomes a very
invasive operation, because many clients will see their resources move.

EqualLogic has created an architecture for transparent storage server scaling, which we have called the "Peer Storage" architecture. It allows a storage service to grow transparently, without service downtime. The systems are self-balancing, requiring essentially no manual tuning. The talk describes the architecture and key protocols, including areas of ongoing work.

Paul Koning is co-founder and Chief Technical Officer of EqualLogic (Nashua, NH). He has been involved in design and implementation of distributed systems for over 20 years, starting at Digital Equipment with DECnet, and subsequently at Chipcom, 3Com, Xedia, and Lucent. He was involved in the definition of the FDDI and ATM standards, and served as chair of the ATM Forum P-NNI (routing) working group.

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