Emc IP Holding Company LLC

Kirill Zabelin

Yuri Alexandrovich Stotski

Chen Reichbach

Yuval Harduf

A method, computer program product, and computer system for placing, by a computing device, an IO in a Kernel-Endpoint (KE) of a plurality of KEs, wherein the IO may be sent by a host and received in a kernel. The IO in the KE may be pulled from a kernel volume specific handle. The IO may be routed to a corresponding user volume associated with the IO.

System and method for improving SCSI scale support by implementing kernel-endpoints instead of per volume interface

A method, computer program product, and computer system for copying, at a new node, reservation metadata volumes of an old node. While a software upgrade is in progress, volume reservation command processing may be enabled on both the new node and the old node when copying is complete. Separate logic may be run to process a volume reservation command of the volume reservation command processing. The old node may be switched to a primary mode, wherein the new node may be switched to a secondary mode to synchronize volume reservation metadata with a primary copy. When the software upgrade is complete, the new node may be switched to a single mode to use only a volume reservation database of the new node.

Growing community of inventors

Murino, Russia

Kirill Zabelin