2-24 Setup and Operation
Jumper settings on the IDE device set the device to master or slave (see the documentation
that comes with the device). Drive letters will be assigned to physical drives as follows.
Table Section 2-2 Hard Disk Assignments
IDE Interface
Connector
Master/Slave
Hard Drive
Assignment
Primary IDE Connector Only
Primary Master
Primary Slave
C: D:
Secondary IDE Connector
Only
Secondary Master
Secondary Slave
C: D:
Primary and Secondary IDE
Connectors (two drives)
Primary Master
Secondary Master
C: D:
Primary and Secondary IDE
Connectors (three drives)
Primary Master
Secondary Master
Primary or Secondary Slave
C: D: E:
Primary and Secondary IDE
Connectors (four drives)
Primary Master
Primary Slave
Secondary Master
Secondary Slave
C: D: E: F:
When drives have multiple partitions on them, partitions beyond the primary partition will
be assigned in ascending order, based on available drive letters and other installed drives.
Partitions are assigned to primary partitions first, and then to secondary partitions. This
means that when there are multiple drives with multiple partitions, the logical drive
numbering scheme may result in discontinuous logical partitions on the same physical drive.
For instance, if “Drive 1” is the master drive on the primary connector with two partitions,
“Drive 2” is the slave drive on the primary connector with three partitions, and “Drive 3” is
the master drive on the secondary connector with two partitions, the drive letters will be
assigned as follows.
Table Section 2-3 Partitioned Hard Disk Assignments
Installed Hard
Drives
Number of
partitions
Hard Drive
Assignment
Drive 1
First partition
Second partition
C: F:
Drive 2
First partition
Second partition
Third partition
D: G: H:
Drive 3
First partition
Second partition
E: I:
