ThinkWiki - Linux Thinkpad Notebook Wiki

This is ThinkWiki, the Wiki Web for ThinkPad users. Here you find anything you need to install your favourite Linux distribution on your Lenovo or IBM ThinkPad.

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IBM/Hitachi harddisk naming scheme

Hitachi harddisk names (on modern drives) are a set of letters and numbers that in fact tell a lot about the specifications of the drive. The designation follows the pattern:

• the H is for Hitachi
• [t] is a single letter designating the drive type, like
  • T = Travelstar
  • D = Deskstar
  • E = Endurastar
• [T] - S for Standard (vs A for Auto for example) - I don't know what this mean :)
• [rr] is the first two digits of speed in RPM, i.e. 54 for 5400 RPM.
• [SS] maximum disk size in model line.
• [ss] is two digits giving the size in GB. 100gig drives have a 10 here.
• [g] generation code
• [h] is the drives height in full millimeters, first digit, i.e. 9 for 9.5mm or some code for desktop: i.e. L - 1-inch form-factor.
• [ii] is a two digit code for the drives interface, like this:
  • AT = IDE/ATA
  • SA = IDE/SATA
  • CE = IDE/ZIF
  • CF = Compact Flash
  • L3 = SCSI/Ultra320
  • LF = FC-AL
• two numerical digits are following, might be some kind of revision, might be something else. Upd: for DeskStar 1st is buffer size (2 - 2MB 8 - 8MB) and 2nd is reserved.

Available drives from IBM or Lenovo