发明申请
US20050114740A1 Concurrent PPRC/FCP and host access to secondary PPRC/FCP device through independent error management
失效
并发PPRC / FCP,并通过独立的错误管理主机访问次级PPRC / FCP设备
- 专利标题: Concurrent PPRC/FCP and host access to secondary PPRC/FCP device through independent error management
- 专利标题(中): 并发PPRC / FCP,并通过独立的错误管理主机访问次级PPRC / FCP设备
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申请号: US10719388申请日: 2003-11-20
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公开(公告)号: US20050114740A1公开(公告)日: 2005-05-26
- 发明人: Frederick Carberry , Rufus Twito , James Chen , Richard Schaeffer , Kaukab Uddin
- 申请人: Frederick Carberry , Rufus Twito , James Chen , Richard Schaeffer , Kaukab Uddin
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines (IBM) Corporation
- 当前专利权人: International Business Machines (IBM) Corporation
- 当前专利权人地址: US NY Armonk
- 主分类号: G06F3/06
- IPC分类号: G06F3/06 ; G06F11/00 ; H04L29/06
摘要:
A method of error management in a data storage system having a target device, with the target device receiving commands from a first initiator and the target device concurrently receiving commands from a second initiator. The target device is typically a storage device operating as a PPRC secondary. A first initiator is a device which communicates with the target device through small computer systems interface (SCSI) protocol. The first initiator is typically a host computer or server. The second initiator communicates with the target device through peer-to-peer remote copy PPRC initiator mode commands. The second initiator is typically a separate storage device in a peer-to-peer remote copy (PPRC) relationship with the target device. The method consists of managing errors associated with a command sent to the target device from the first initiator independently from the management of errors associated with a command sent to the target device from the second initiator.
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