发明名称 |
Storage device and system providing a reservation function for a communications buffer |
摘要 |
A storage device (1) communicating with a host computer and other storage devices through a network is characterized in that the storage device (1) secures memory buffers for temporarily storing data in a remote copy operation carried out between the storage devices. A network memory (100) in the storage device (1) includes an available buffer comprising a plurality of memory buffers and an in-use buffer also comprising a plurality of memory buffers. A buffer control unit (215) secures memory buffers of the available buffer as a reserved buffer having a reserved-buffer size specified in a buffer reservation request made by a storage management device (8) in response to the request. The buffer control unit (215) then allocates the memory buffers of the reserved buffer as the in-use buffer in response to a request received from the storage management device (8) to start a remote copy operation. <IMAGE> |
申请公布号 |
EP1526462(A3) |
申请公布日期 |
2005.11.23 |
申请号 |
EP20040012586 |
申请日期 |
2004.05.27 |
申请人 |
HITACHI, LTD. |
发明人 |
FUJIWARA, KEISEI;IWAMI, NAOKO;WATANABE, NAOKI;SHIGA, KENTA |
分类号 |
G06F3/06;G06F11/20;G06F11/34;G06F12/00;H04L29/08 |
主分类号 |
G06F3/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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