Unformatted And Formatted Capacities; Options (Factory Installed); Optional Accessories (User Installed) - Seagate ST11200N Product Manual

Product Manual - Hawk 1 Family SCSI-2 (Volume 1), Rev. D
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4.2

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 some typical formatted capacities.
Spare Sector or Cylinders
reserved for reallocation
No Spares
One Spare Sector
per track/2 spare
cylinders per unit**
One Spare Sector
per cylinder; 2 spare
cylinder per unit**
Unformatted Capacity
*Bytes per sector. Sector size selectable at format time. Users having the necessary equipment may
modify the data block size before issuing a format command and obtain different formatted capacities than
those listed. User available capacity depends on spare reallocation scheme selected. See Mode Select
Command and Format Command in the SCSI Interface Product Manual P/N 77738479.
**Spare cylinders are on the inner tracks.
The standard OEM model is as follows:
ST11200N/ND/NC
ST1980N/ND
ST1950N
ST1830N
* Twelve spare sectors per cylinder, two spare cylinders/unit.
** One spare sector per track, two spare cylinders/unit.
4.3

Options (factory installed)

The capacities shown in paragraph 4.2 are available upon request. Other capacities can be ordered de-
pending on sparing scheme and sector size requested.
The following options are incorporated at the time of production. See Section 12.0.
Front panel (green LED) - See Figure 3.0-1
Installation Manual P/N 77738480
SCSI Interface Terminating Resistors (Single Ended only)
4.4

Optional accessories (user installed)

The following accessories are available. All kits may be installed in the field. See Section 13.0.
Front Panel Kit (with green LED) - See Figure 3.0-1
Single Unit shipping pack kit
Installation Guide P/N 77738480
•· Adapter Accessory Frame Kit P/N 75790701 (adapts 3.5-inch drive to fit in 5.25-inch drive mounting
space)
ST11200
512* 1024* 512*
1066 1116
1051 1087
1064 1114
1248
Formatted Data Block Size
512 Byte/Sector
1054 MB*
860 MB**
803 MB**
702 MB**
Capacities in Megabytes
Applicable model numbers
ST1980 ST1950
1024* 512*
872 913 814
860 889 803
870 910 812
1021 953
Unformatted
1248 MB
1021 MB
953 MB
834 MB
ST1830
1024* 512* 1024*
852 712 747
831 702 728
850 711 745
834
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