Hard Disk Drive Chain Of Command
There are four channels on an ATA interface, with each drive populated in a master/slave configuration. There are four connections utilized by the
EIDE interface. The following table summarizes these connections and lists
the typical device attached to these connections:
|Hard disk drive # 1 - Typically the primary
boot up drive used to install and run a Windows operating system.
||Device 01 on channel IDE0
|Primarily used as a CD-Rom drive. The secondary master can also be
configured as a second or third hard disk drive in the system.
||Device 02 on channel IDE0
|Hard disk drive # 2 - Typically a secondary boot up drive or storage
||Device 01 on channel IDE1
|Used as a tape drive, or any other backup drive such as an Iomega Zip
or Ditto drive. A 120MB super floppy can also be configured as the secondary
slave or boot up drive.
||Device 02 on channel IDE1
The primary master is typically
reserved for the hard disk drive you are booting from, but on newer systems,
these settings can be changed to reflect a CD-Rom or tape drive as the primary
master. You may want to use a tape drive as the primary master, if you are
experiencing problems with your system or you suspect your hard drive is failing
and don't wish to boot up using the hard disk.