Hierarchical storage apparatus and control apparatus thereof

Electrical computers and digital processing systems: memory – Storage accessing and control – Access timing

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C711S117000

Reexamination Certificate

active

11189200

ABSTRACT:
A method for managing data stored in a hierarchical storage unit of a storage apparatus is disclosed. The storage unit includes a first storage medium having a first access speed and a second storage medium having a second access speed. The first access speed is different from the second access speed. The method comprises determining a first access frequency for information of first type, the first access frequency being associated with a first period of past time. A second access frequency of the information of first type is determined. The second access frequency is associated with a second period of past time and is different than the first access frequency. At least a portion of the information of first type is transferred from the first storage medium to the second storage medium prior to a second period based on the second access frequency determined in the determining-a-second-access-frequency step, the second period corresponding to the second period of past time.

REFERENCES:
patent: 5893139 (1999-04-01), Kamiyama
patent: 6128717 (2000-10-01), Harrison et al.
patent: 6748487 (2004-06-01), Takamoto et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Hierarchical storage apparatus and control apparatus thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hierarchical storage apparatus and control apparatus thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hierarchical storage apparatus and control apparatus thereof will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3892915

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.