Remote copy processing method, program, and system

Details Remote copy processing method, program, and system Remote copy processing method, program, and system

2005-07-18

2008-10-07

McCarthy, Christopher S (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S018000, C709S227000, C709S228000

Reexamination Certificate

active

07434094

ABSTRACT:
According to a copy instruction from a host, a session in which entire or partial data of a primary volume of a first RAID device of the copy source is transferred and copied to the same position of a secondary volume of a second RAID device of the copy destination through an inter-chassis path is established and executed based on session information. A computer of the host instructs the first RAID device of forcible stop of the session as to cause the session information to be deleted when the inter-chassis path is blocked, and causes the session information remaining in the second RAID device to be deleted by an instruction given via the first RAID device when the forcibly terminated session is tried to be started when the blocked inter-device path is connected and results in an error.

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patent: 2002/0152429 (2002-10-01), Bergsten et al.
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patent: 2006/0248350 (2006-11-01), Stanev
patent: 2004-112088 (2004-04-01), None

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