Skip to main content
SpringerLink
Log in

Disk Power Saving

  • Reference work entry
  • First Online:
Encyclopedia of Database Systems

  • 17 Accesses

Definition

The term Disk Power Saving refers to the function of reducing the electric power that is consumed in a disk drive. Typically, Disk Power Saving cuts power supply to a particular component of the disk drive or slows down the component. In most cases, the disk drive cannot respond to input/output requests while it is in such a power saving mode.

Key Points

Power modes of modern disk drives are often classified as normal and stand-by. A disk drive in the normal mode is either processing read/write requests or ready to immediately start processing read/write requests. In this mode, all the components are almost fully operating. The disk drive thus consumes higher electric power than in the other modes. In contrast, a disk drive in the other modes cannot start processing read/write requests immediately. In the stand-by mode, the spindle motor is spun down and the head assembly is unloaded to the ramp and powered off; only the controller or a partial circuit of the controller...

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Log in via an institution
Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 4,499.99
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Hardcover Book
USD 6,499.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Recommended Reading

  1. Gurumurthi S, Sivasubramaniam A, Kandemir M, Franke H. Reducing disk power consumption in servers with DRPM. IEEE Comput. 2003;36(12):59–66.

    Article  Google Scholar 

  2. HGST Inc. Quietly cool. White Paper, HGST; 2004.

    Google Scholar 

  3. Yada H, Ishioka H, Yamakoshi T, Onuki Y, Shimano Y, Uchida M, Kanno H, Hayashi N. Head positioning servo and data channel for HDDs with multiple spindle speeds. IEEE Trans Magn. 2000;36(5):2213–5.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. The University of Tokyo, Tokyo, Japan

    Kazuo Goda

Authors
  1. Kazuo Goda
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Kazuo Goda .

Editor information

Editors and Affiliations

  1. Georgia Institute of Technology College of Computing, Atlanta, GA, USA

    Ling Liu

  2. University of Waterloo School of Computer Science, Waterloo, ON, Canada

    M. Tamer Özsu

Section Editor information

  1. Inst. of Industrial Science, Univ. of Tokyo, Tokyo, Meguro Ku, Japan

    Masaru Kitsuregawa

Rights and permissions

Reprints and permissions

Copyright information

© 2018 Springer Science+Business Media, LLC, part of Springer Nature

About this entry

Check for updates. Verify currency and authenticity via CrossMark

Cite this entry

Goda, K. (2018). Disk Power Saving. In: Liu, L., Özsu, M.T. (eds) Encyclopedia of Database Systems. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8265-9_1324

Download citation

Publish with us

Policies and ethics

Search

Navigation