Failure monitoring for storage systems constituting multiple...

Details Failure monitoring for storage systems constituting multiple... Failure monitoring for storage systems constituting multiple...

2004-10-15

2008-10-21

Baderman, Scott T. (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S020000, C714S042000, C714S043000

Reexamination Certificate

active

07441145

ABSTRACT:
To provide a computer system capable of detecting a failure at an early stage while keeping down an increase in I/O load due to failure monitoring. The computer system includes plural storage systems connected in stages between a first computer and a second computer. The first computer sends control I/O to the storage systems. The second computer monitors control I/O transferred through the storage systems; and when there is control I/O that has not been transferred successfully, requests state information of the storage systems to transfer the control I/O.

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