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1. 发明申请

US20100103549A1 DATA ARCHIVE SYSTEM 有权
标题翻译：数据存档系统
公开(公告)号：US20100103549A1
公开(公告)日：2010-04-29
申请号：US12331598
申请日：2008-12-10
申请人： Tomonori MURAYAMA , Yoichi Mizuno
发明人： Tomonori MURAYAMA , Yoichi Mizuno
IPC分类号： G11B5/86
CPC分类号： G06F3/0647 , G06F3/0613 , G06F3/0685 , G06F3/0686
摘要： In a virtual disk library device access of data stored in a tape can be conducted at a high speed with a high-speed archiving process from a disk to the tape in units of LUs maintained. The efficiency of update of the data stored in the tape can be improved. In this system, when the data stored in the tape is to be accessed with a high-speed archiving process in units of LUs from the disk to the tape maintained, a disk staging process is performed in the unit of a page that is smaller than the unit of an LU, and accordingly, high-speed access can be implemented. In addition, when an update process for the data (LU) stored in the tape is performed, the host can be responded by only staging an update target page of the LU, and a prior disk staging process is performed for the remaining pages of the LU in the background. Accordingly, when the data is re-stored in the tape, immediately storing the data in the tape can be performed without performing a staging process.
摘要翻译：在虚拟磁盘库设备中，存储在磁带中的数据的访问可以以保持的单位为单位的高速存档从磁盘到磁带的高速进行。可以提高存储在磁带中的数据的更新效率。在该系统中，当存储在磁带中的数据将以从磁盘到保持的磁带的单元的高速存档过程进行访问时，以小于...的页面为单位执行磁盘分段处理 LU的单元，因此可以实现高速访问。此外，当执行存储在磁带中的数据（LU）的更新处理时，可以通过仅对LU的更新目标页面进行分段来响应主机，并且对其中的剩余页面执行先前的磁盘分段处理 LU在后台。因此，当数据被重新存储在磁带中时，可以在不执行分段处理的情况下执行将数据立即存储在磁带中。

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