Appeal No. 96-3668
Application 08/314,574
the application.
The invention pertains to an automated machine-type media storage library and method
for maximizing storage media hit ratio in the library. Claims 1 and 8 are illustrative and read as follows:
1. A method for maximizing storage media hit ratio in a machine-type media storage
library, said library having a host processor connected thereto, said library having a plurality of
physically individual media for storing data files thereon, said library having at least one machine-type
access device for accessing files on media that is currently in said at least one access device, said at
least one access device functioning as a first physical level of storage that is currently accessible by said
host processor, and said library having a second physical level of media storage that is transferrable to
said at least one access device, files stored in said first level being accessible directly by said host
processor, and files stored in said second level being accessible by said host processor after a media
containing files is physically transferred from said second level to said first level, the method comprising
the machine-executed steps of:
physically transferring media from said second level to said first level;
electronically accessing files on media at said first level;
electronically tracking the number of physical accesses of each file at said first level;
electronically tracking the number of physical transfers of each media from said second
level to said first level;
electronically determining frequently accessed files and frequently transferred media;
and
electronically migrating said frequently accessed files to said frequently transferred
media.
8. An automated machine-type media storage library connected to a host processor,
said library physically manipulating a plurality of media stored therein, each media including at least one
data volume thereon, and each data volume including a plurality of data files, the library comprising:
2
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Last modified: November 3, 2007