Storage system making possible data synchronization...

Details Storage system making possible data synchronization... Storage system making possible data synchronization...

2007-04-10

2007-04-10

Nguyen, Hiep T. (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

Reexamination Certificate

active

11109638

ABSTRACT:
A synchronization confirmation method required for operation of a database is provided to a host device connected to a disk device which provides remote asynchronous data transfer. Immediately after commit of write data, an application of the host device issues a sync command which requires synchronization confirmation. A disk control device notifies the host device of a number concerning latest data received from the host device of a local side and a number concerning latest data received by a remote side. When the two numbers have coincided with each other, the host device judges the commit operation to have been completed.

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