发明名称 |
SYNCHRONOUS INPUT/OUTPUT REPLICATION OF DATA IN A PERSISTENT STORAGE CONTROL UNIT |
摘要 |
Aspects include synchronous input/output (I/O) replication of data. A synchronous I/O request is received from an operating system (OS) by firmware on a server. A plurality of synchronous I/O mailbox commands is transmitted by the firmware to a plurality of persistent storage control unit (SCU) nodes. The content of each of the plurality of synchronous I/O commands is based on the synchronous I/O request. A unit of work in the OS corresponding to the synchronous I/O request remains active at least until the synchronous I/O request is completed. It is determined, by the firmware, that determining that each of the plurality of persistent SCU nodes have completed their respective synchronous I/O commands. Based on the determining, the firmware indicates to the OS that the synchronous I/O request is completed. |
申请公布号 |
US2017097975(A1) |
申请公布日期 |
2017.04.06 |
申请号 |
US201514872859 |
申请日期 |
2015.10.01 |
申请人 |
International Business Machines Corporation |
发明人 |
Craddock David F.;Glendening Beth A.;Kalos Matthew J.;Sutton Peter G.;Yudenfriend Harry M. |
分类号 |
G06F17/30;G06F13/42;H04L29/08 |
主分类号 |
G06F17/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
Armonk NY US |