Hard Drive Technologies

Reviews, Guides, Tips and Recovery of Hard Disk Drive Data

14.113 Hard Disks, Sectors, Zone Bit Recording, Sectors vs Blocks, CHS, LBA, Sparing

March 19, 2018 Jon 11 Comments

My book “Patterns in Data Management” is now available both as an ebook or a print book (with color graphics!). See: http://amzn.to/1Ts3rwx This book is not a standard textbook on database techniques. This book was written extending and complementing preexisting educational videos (including this one).

Why would hard disks still be important these days? What is a platter? What is a diskhead and a disk arm? How do tracks and cylinders relate? What is the difference of a circular sector from a HD sector? What is zone bit recording? What does this imply for sequential access? Where are self-correcting blocks used? What is the difference of HD sectors and operating systems blocks? What is physical cylinder/head/sector-addressing? What is logical cylinder/head/sector-addressing? How does it relate to the former? What is logical block addressing? What is sparing? What does this imply for sequential accesses?

Video for my inverted classroom “Database Systems”.

The complete list of videos and additional material is available at http://datenbankenlernen.de

Computer Science, Saarland University:
Bachelor (in German): http://www.cs.uni-saarland.de/index.php?id=52&L=1
Master (in English): http://www.cs.uni-saarland.de/index.php?id=132&L=1
Ph.D./Grad School: http://gradschool.cs.uni-saarland.de/
Video Rating: / 5

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  1. Nikita Deshmukh
    March 19, 2018 - 5:34 am


  2. Jiansen Zheng
    March 19, 2018 - 6:34 am

    Merci beaucoup.

  3. Aetohatir
    March 19, 2018 - 6:46 am

    Dieser deutsche Akzent… D:
    Aber danke für die Informationen.

  4. Feroz Khan
    March 19, 2018 - 7:19 am


  5. kinsel
    March 19, 2018 - 7:41 am

    3 people who disliked this video, must've been able to detect the error but not recover from it.

  6. sevak001
    March 19, 2018 - 8:27 am

    Great explanations. Love the course, it has been a very fun and interesting look at Databases. Thank you!

  7. Philipp Glanzmann
    March 19, 2018 - 8:39 am


  8. vxkhwz
    March 19, 2018 - 9:29 am

    Your video is the kind of thing that allows me to put 2+2 together so I can move on. Thanks.

  9. Venkat Gurram
    March 19, 2018 - 10:19 am

    NIce explanation. I wish the lines used for drawing and pointing figures in the video are more legible…
    thank you

  10. yzchenwei
    March 19, 2018 - 10:34 am

    HD picture. Very nice.

  11. shawover3098
    March 19, 2018 - 11:07 am

    Really informative video, this has helped me a lot! Thank you for putting this together!

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