公开(公告)号：US09176917B2

公开(公告)日：2015-11-03

申请号：US13781293

申请日：2013-02-28

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Michael G Myrah ,  Balaji Natrajan ,  Rodrigo Stoll Martins Machado

IPC: G06F13/00 ,  G06F13/40

CPC classification number: G06F13/409

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.

Abstract translation: 用于操作串行连接SCSI（SAS）扩展器的技术，其包括包括出站PHYS的条目的延迟表，其中延迟值与入站PHY和出站PHY之间的连接相关联。 一种存储管理模块，用于响应于接收到与入站PHY相关联的发起者设备的命令将数据路由到与出站PHY相关联的目标设备，从等待时间表中选择来自多个出站的随机出站PHY PHY，其中随机选择基于等待时间表的出站PHY条目的等待时间值的加权平均值。

公开(公告)号：US09135193B2

公开(公告)日：2015-09-15

申请号：US13849616

申请日：2013-03-25

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Michael G. Myrah ,  Balaji Natrajan ,  Rodrigo Stoll Martins Machado

IPC: G06F13/24 ,  G06F3/06 ,  G06F13/32 ,  G06F13/36

CPC classification number: G06F13/24 ,  G06F3/0628 ,  G06F3/0634 ,  G06F13/32 ,  G06F13/36 ,  G06F2213/0028

Abstract: In one example in accordance with aspects of the present disclosure, an expander is provided. The expander comprises a workload scheduling module to cause the expander to enter a first mode of operation where the expander processes interrupts, and further to enter a second mode of operation where the expander processes interrupts for up to a predetermined time period before responding to at least one of Serial Management Protocol (SMP) commands and Serial SCSI Protocol (SSP) commands with a retry message.

Abstract translation: 在根据本公开的方面的一个示例中，提供了一种扩展器。 扩展器包括工作负载调度模块，用于使扩展器进入扩展器处理中断的第一操作模式，并进一步进入第二操作模式，其中扩展器在至少响应之前处理中断长达预定时间段 串行管理协议（SMP）命令和具有重试消息的串行SCSI协议（SSP）命令之一。

公开(公告)号：US20140244879A1

公开(公告)日：2014-08-28

申请号：US13781293

申请日：2013-02-28

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Michael G Myrah ,  Balaji Natrajan ,  Rodrigo Stoll Martins Machado

IPC: G06F13/40

CPC classification number: G06F13/409

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.

Abstract translation: 用于操作串行连接SCSI（SAS）扩展器的技术，其包括包括出站PHYS的条目的延迟表，其中延迟值与入站PHY和出站PHY之间的连接相关联。 一种存储管理模块，用于响应于接收到与入站PHY相关联的发起者设备的命令将数据路由到与出站PHY相关联的目标设备，从等待时间表中选择来自多个出站的随机出站PHY PHY，其中随机选择基于等待时间表的出站PHY条目的等待时间值的加权平均值。