Seagate ST9900805SS Savvio 10K.1 SCSI Product Manual - Page 13

General description

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3.0 General description Savvio SCSI drives combine Tunneling Magnetoresistive (TMR) heads and a wide Ultra320 SCSI interface to provide high performance, high capacity data storage for a variety of systems including engineering workstations, network servers, mainframes, and supercomputers. Ultra320 SCSI uses negotiated transfer rates. These transfer rates will occur only if your host adapter supports these data transfer rates and is compatible with the required hardware requirements of the I/O circuit type. This drive also operates at SCSI-1 and SCSI-2 data transfer rates for backward compatibility with non-Ultra/Ultra2/ Ultra320 SCSI host adapters. Table 1 lists the features that differentiate the Savvio SCSI models. Table 1: Drive model number vs. differentiating features Model number ST973401LC ST936701LC Number of heads 4 2 Formatted Capacity 73.4 Gbytes 36.7 Gbytes [1] See Section 9.6 for details and definitions. The drive records and recovers data on approximately 2.5-inch (65 mm) non-removable discs. The drive supports the Small Computer System Interface (SCSI) as described in the ANSI SCSI interface specifications to the extent described in this manual, which defines the product performance characteristics of the Savvio SCSI family of drives, and the SCSI Interface Product Manual, part number 75789509, which describes the general interface characteristics of this and other families of Seagate SCSI drives. The drive's interface supports multiple initiators, disconnect/reconnect, self-configuring host software, and automatic features that relieve the host from the necessity of knowing the physical characteristics of the targets (logical block addressing is used). The head and disc assembly (HDA) is sealed at the factory. Air circulates within the HDA through a nonreplaceable filter to maintain a contamination-free HDA environment. Never disassemble the HDA and do not attempt to service items in the sealed enclosure (heads, media, actuator, etc.) as this requires special facilities. The drive contains no replaceable parts. Opening the HDA voids your warranty. Savvio SCSI drives use a dedicated landing zone at the innermost radius of the media to eliminate the possibility of destroying or degrading data by landing in the data zone. The drive automatically goes to the landing zone when power is removed. An automatic shipping lock prevents potential damage to the heads and discs that results from movement during shipping and handling. The shipping lock automatically disengages when power is applied to the drive and the head load process begins. Savvio SCSI Product Manual, Rev. D 7

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Savvio SCSI Product Manual, Rev. D
7
3.0
General description
Savvio SCSI drives combine Tunneling Magnetoresistive (TMR) heads and a wide Ultra320 SCSI interface to
provide high performance, high capacity data storage for a variety of systems including engineering worksta-
tions, network servers, mainframes, and supercomputers.
Ultra320 SCSI uses negotiated transfer rates. These transfer rates will occur only if your host adapter supports
these data transfer rates and is compatible with the required hardware requirements of the I/O circuit type. This
drive also operates at SCSI-1 and SCSI-2 data transfer rates for backward compatibility with non-Ultra/Ultra2/
Ultra320 SCSI host adapters.
Table 1 lists the features that differentiate the Savvio SCSI models.
[1]
See Section 9.6 for details and definitions.
The drive records and recovers data on approximately 2.5-inch (65 mm) non-removable discs.
The drive supports the Small Computer System Interface (SCSI) as described in the ANSI SCSI interface
specifications to the extent described in this manual, which defines the product performance characteristics of
the Savvio SCSI family of drives, and the
SCSI Interface Product Manual
, part number 75789509, which
describes the general interface characteristics of this and other families of Seagate SCSI drives.
The drive’s interface supports multiple initiators, disconnect/reconnect, self-configuring host software, and
automatic features that relieve the host from the necessity of knowing the physical characteristics of the targets
(logical block addressing is used).
The head and disc assembly (HDA) is sealed at the factory. Air circulates within the HDA through a non-
replaceable filter to maintain a contamination-free HDA environment.
Never disassemble the HDA and do not attempt to service items in the sealed enclosure (heads, media, actu-
ator, etc.) as this requires special facilities. The drive contains no replaceable parts. Opening the HDA voids
your warranty.
Savvio SCSI drives use a dedicated landing zone at the innermost radius of the media to eliminate the possibil-
ity of destroying or degrading data by landing in the data zone. The drive automatically goes to the landing
zone when power is removed.
An automatic shipping lock prevents potential damage to the heads and discs that results from movement dur-
ing shipping and handling. The shipping lock automatically disengages when power is applied to the drive and
the head load process begins.
Table 1:
Drive model number vs. differentiating features
Model number
Number of heads
Formatted Capacity
ST973401LC
ST936701LC
4
2
73.4 Gbytes
36.7 Gbytes