Seagate ST11900W/WD/WC, ST12400W/WD/WC manual Not applicable to WC model drives

Page 33

Hawk 2 (Wide bus) Family Install Guide, Rev. C 31 continued from previous page

TP

TP

(Not applicable to "WC" model drives)

Off

Off

No terminator power is connected to drive

 

 

terminators or SCSI bus I/O pin 26.

On Off

Drive supplies its own terminator power only.

 

 

Jumper on this position is factory default.

Off

On

Drive supplies power to I/O pin 26 of SCSI bus;

 

 

none to internal terminators. When drives have

 

 

differential I/O circuits a jumper on the rightTP

 

 

position may be needed to power external

 

 

terminator (see system documentation). The

 

 

Hawk 2 family ST12400WD drive has differen-

 

 

tial I/O circuits which have no terminator cir-

 

 

cuits on the drive.

On

On

Drive supplies terminator power to itself (inter-

 

 

nal connection) and to I/O pin 26 of SCSI bus.

 

 

This is a legal jumper setting.

TP Position A

On

 

This horizontally positioned jumper across the

 

 

two TP positions nearest PCB edge, connects

 

 

terminator power from SCSI bus I/O pin 26 to

 

 

the drive's internal terminators (for single-ended

 

 

I/O only).

Off

 

See above explanations for TP jumpers.

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Contents Hawk 2 Family Wide Bus ST12400W/WD/WC ST11900W/WD/WC ContentsHawk 2 Wide bus Family Install Guide, Rev. C Electromagnetic interference EMI con- siderations IntroductionPage Before you begin Page Hawk 2 Wide bus Family Install Guide, Rev. C Safety instructions Sicherheitsanleitung Installation Overview Page Product repair information Product repair and return information Technical support services SeaFAX 408/438-2620SeaFONE 408/438-8222 SeaBOARD SeaTDD 408/438-5382Modem Maximum Location Number Baud Rate BBSPower requirements Versorgungsspannungen Drive specificationsSeek time ms typ Operating environmentProduct Hawk 2 family wide Information ST11900W/WC ST11900WD Page Initial setup information DC Power connectionScsi interface cable connection Scsi address selection DC power connection, 68 pin Scsi I/O connectorTerminator resistor packs Optional parity bit enable Read/Write head auto-parkWrite precompensation and reduced write current Scsi I/O ST12400W/WD family 68 pin Scsi I/O drives Drive configurationST12400WC family 80 pin Scsi I/O drives See PCB Cath Hawk 2 Wide bus Family Install Guide, Rev. C RES Hawk 2 Wide bus Family Install Guide, Rev. C Not applicable to WC model drives SSP Disc drive mounting Drive installation040 in .02 mm Hawk 2 Wide bus Family Install Guide, Rev. C Grounding Scsi interface drives Hawk 2 Wide bus Family Install Guide, Rev. C

ST12400W/WD/WC, ST11900W/WD/WC specifications

The Seagate ST11900W/WD/WC and ST12400W/WD/WC are high-performance disk drive models that deliver substantial storage capabilities for various computing environments. These drives have been specifically designed for enterprise-level applications, enabling users to handle large data sets and demanding workloads with ease.

One of the key features of the ST11900W/WD/WC and ST12400W/WD/WC is their impressive storage capacity. The ST11900W offers up to 9.1 GB of storage, while the ST12400W extends this storage to a remarkable 12.4 GB. This level of capacity is particularly beneficial for organizations that require reliable storage solutions for extensive databases, multimedia files, and backup operations.

In terms of performance, both models utilize the SCSI interface, which provides efficient data transfer rates and enhanced performance over traditional IDE interfaces. The drives are optimized for sustained data transfer, thanks to their rotational speeds of 7200 RPM, allowing for faster access to stored information. This feature significantly reduces latency and improves overall system performance, making them suitable for high-demand applications.

The Seagate ST11900W/WD/WC and ST12400W/WD/WC also incorporate advanced technologies such as Automatic Acoustic Management (AAM) for noise optimization, as well as error recovery controls that enhance data integrity and security. These features ensure that the drives operate quietly and efficiently while minimizing risks related to data loss.

Furthermore, these drives support a range of RAID configurations, contributing to their flexibility in various system setups. Whether used in a single drive configuration or as part of a more complex RAID system, users benefit from improved data redundancy and fault tolerance, ensuring that critical data remains protected against hardware failures.

Another notable characteristic is their durability. Designed to withstand the rigors of continuous operation, these drives have robust construction that helps prevent mechanical failure, making them suitable for environments with high demands on reliability and performance.

In summary, the Seagate ST11900W/WD/WC and ST12400W/WD/WC are excellent choices for enterprises looking for reliable, high-capacity storage solutions. With their impressive storage capabilities, performance-enhancing technologies, and advanced features, these drives fulfill the demands of modern computing environments, providing users with the necessary tools to manage their data efficiently.
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