Paper Title: A Data-Path-Blind Distributed Storage Cluster Manager

Paper Abstract: Excelero's extremely fast RDDA technology implies that a server be absolutely unaware of I/O transactions. As such, the manager cannot intercept an I/O transaction, examine it, and decide to redirect or reject it. This talk will provide a brief description of of the mechanisms that enable the tight control of the state-changes of a RAID whose disks reside on different nodes, and has many clients (that can also reside on different nodes) that are able to access it in parallel. Excelero's highly distributed, symmetric,and scaleable cluster-manager cannot assume that all the servers are in full sync, and also cannot assume that all the servers fully synchronize their clients at once. However, it still manages to make most of the required state transitions without any I/O interruption.

Paper Author: Ronen Hod, Software Developer, Excelero

Author Bio: Ronen is the Software Development Team Leader responsible for the NVMesh cluster management component TOMA (TOpology MAnager). He is a Linux kernel veteran who led the KVM development teams at Red Hat and is also our best off-road motorcyclist.