Patent ID: 7171583
Filing Date: 2007-01-30
Classification: G06F

Abstract:
1. A method for extending peer-to-peer remote copy system operations for transferring data contents written to a first storage system from a host device to a remote second storage system over a communications link, said method comprising: a) setting a timer for a timeout period in which data contents written to said first storage system are to be transferred to said remote second storage system; b) determining if a successful transfer of said data contents to said remote second storage system has occurred within said timeout period; and, if no successful transfer has occurred within said timeout period, c) initiating generation of a busy signal for receipt by said host device to prevent suspension of data content transfer operations between said first storage system and said remote second storage system for an additional timeout period, wherein said host device at said first storage system is available to write new data contents to said first storage system for subsequent transfer to said remote second storage system after said additional time out period.