Unformatted And Formatted Capacities; Programmable Drive Capacity; Factory Installed Accessories; Options (Factory Installed) - Seagate ST34520N - Medalist 4.55 GB Hard Drive Product Manual

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3.5

Unformatted and formatted capacities

Formatted capacity depends on the number of spare reallocation sectors reserved and the number of bytes per
sector. The following table shows the standard OEM model read capacity data. Total LBAs = read capacity data
shown below + 1.
Formatted
data block size
Model 512 byte/sector
ST39140 9.100 GB
ST36530 6.5 GB
ST34520 4.55 GB
3.6

Programmable drive capacity

Using the Mode Select command, the drive can change its capacity to something less than maximum. See
Table 5.2.1-13 in the SCSI Interface Product Manual (part number 77738479). Refer to the Parameter list block
descriptor, bytes 1, 2 and 3. A value of zero in bytes 1, 2 and 3 indicates that the drive shall not change the
capacity it is currently formatted to have. A number in bytes 1, 2 and 3 that is less than the maximum number of
LBAs changes the total drive capacity to the value in the block descriptor bytes 1, 2 and 3. A value greater than
the maximum number of LBAs is rounded down to the maximum capacity. Byte 0 is not used as the density
code, but as the MSB of number of LBAs.
3.7

Factory installed accessories

The drive ships with a small bag of the two jumper plug types used for the J6, J2, and J1-Aux option select
jumper headers.
3.8

Options (factory installed)

All customer requested options are incorporated during production or packaged at the manufacturing facility
before shipping. Some of the options available are:
• The capacities shown in Section 3.5. You can order other capacities by selecting a maximum LBA as shown
in Section 3.6.
• Single unit shipping pack. The drive normally ships in bulk packaging to provide maximum protection against
transit damage. Units shipped individually require additional protection as provided by the single unit ship-
ping pack. Specify this option if you are planning to ship single units to your customers.
• ESD and physical protection is accommodated by a protective plate called SeaShield which attaches to the
PCB.
3.9

Accessories (user installed)

No accessories offered.
User LBAs Sparing
17,783,240 8,033 spares for both P and G lists
12,715,920 8,033 spares for both P and G lists
8,888,924 8,033 spares for both P and G lists
Medalist Pro Product Manual, Rev. D