FILE SYSTEM FOR ROLLING BACK DATA ON TAPE

专利名称：FILE SYSTEM FOR ROLLING BACK DATA ON

TAPE

发明人：Takashi Ashida,Hiroshi Itagaki,Setsuko

Masuda,Tsuyoshi Miyamura,Terue Watanabe

申请号：US15417545申请日：20170127

公开号：US20170139785A1公开日：20170518

专利附图：

摘要：Rolling back data on tape in a file system is provided. A management tape isprepared. The management tape has only index files recorded thereon. The index files

contain information about start positions and lengths of corresponding data filesrecorded on normal tapes. The index files further contain identification information forthe normal tapes. A first index file of the management tape is read. The first index file isrelated to a data file to be rolled back. The first index file is read out from the

management tape mounted on a first tape drive. The data file to be rolled back is readout of a first normal tape. The first normal tape is identified based on information in thefirst index file. The first normal tape is mounted on a second tape drive.

申请人：International Business Machines Corporation

地址：Armonk NY US

国籍：US

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