The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 20, 2021
Filed:
Jan. 14, 2020
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Leonid Ravich, Yatzitz, IL;
Eldad Zinger, Raanana, IL;
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
Techniques for providing an efficient NTB-based data transport in a highly available storage system. The techniques include performing an ordered transfer of a source data buffer from a primary storage node to a secondary storage node over a PCIe NTB, writing a 'transfer ID value' for the ordered transfer over the NTB to a 'received transfer ID register' of the secondary storage node, performing a remote procedure call (RPC) to send, over a side channel, the transfer ID value as a “sent transfer ID value” to the secondary storage node, and processing the RPC call to verify the value contained in the received transfer ID register against the sent transfer ID value. Having performed the verification, the secondary storage node determines a successful or unsuccessful status of the ordered transfer, and sends an RPC reply to acknowledge or inform the primary storage node of the successful or unsuccessful status.