IBM IC35L040AVVN07-0 - 40GB IDE Deskstar 120GXP 7200RPM UATA-100..., Specifications

Page: 24 / 211

2
Logical layout: Logical layout is an imaginary drive parameter (that is, the number of heads) which is
used to access the drive from the system interface. The Logical layout to Physical layout (that is, the actu-
al Head and Sectors) translation is done automatically in the drive. The default setting can be obtained by
issuing an IDENTIFY DEVICE command
4.2 Data sheet
31 31 Number of data bands
29.7 29.7
Areal density - max (Gbits/in
2
)
54 56.7 Track density (Ktpi)
547 524 Recording density- max (Kbpi)
up to 56 up to 56 Number of buffer segments (write)
up to 12 up to 12 Number of buffer segments (read)
7,200 7,200 Rotational speed (RPM)
2,048 2,048
Data buffer size
1
(KB
)
100 100 Interface transfer rate (MB/s)
627 592 Data transfer rate (Mbps)
Low TPI models High TPI models Description
1
Upper 184.5 KB is used for firmware
Figure 2. Mechanical positioning performance
Deskstar 120GXP hard disk drive specifications
10