Invention Grant
- Patent Title: SAS latency based routing
- Patent Title (中): 基于SAS延迟的路由
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Application No.: US13781293Application Date: 2013-02-28
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Publication No.: US09176917B2Publication Date: 2015-11-03
- Inventor: Michael G Myrah , Balaji Natrajan , Rodrigo Stoll Martins Machado
- Applicant: Hewlett-Packard Development Company, L.P.
- Applicant Address: US TX Houston
- Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee Address: US TX Houston
- Agency: Hewlett-Packard Patent Department
- Main IPC: G06F13/00
- IPC: G06F13/00 ; G06F13/40

Abstract:
Techniques for operating a serial attached SCSI (SAS) expander that includes a latency table comprising entries of outbound PHYS with latency values associated with connections between inbound PHYs and outbound PHYs. A storage management module to, in response to receipt of a command from an initiator device associated with an inbound PHY to route data to a target device associated with an outbound PHY, select from the latency table a random outbound PHY from among a plurality of outbound PHYs, wherein the random selection is based on weighted average of latency values of the outbound PHY entries of the latency table.
Public/Granted literature
- US20140244879A1 SAS Latency Based Routing Public/Granted day:2014-08-28
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