Seagate ST11900W/WD/WC, ST12400W/WD/WC manual Read/Write head auto-park, Optional parity bit enable

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Hawk 2 (Wide bus) Family Install Guide, Rev. C 21

Model numbers that end in "WD" have differential I/O circuits and these drives and "WC" mode drives have no provisions for terminators on the drive PCB. The system manufacturer must provide some external means of I/O line termination. The ST12400W/WD drives can provide power for external terminators if the TP jumper is installed on the last position on the right end of J2. See Figure 3a.

Read/Write head auto-park

Seagate disc drives described herein mentioned in this drive park the heads automatically at power off. This feature requires no operator intervention.

Optional parity bit enable

Some systems require parity bit checking. Consult the system documentation for the specific requirements. See Figure 3a for location of Parity Bit enable jumper. Jumper-installed enables parity reporting by the SCSI bus.

Write precompensation and reduced write current

Not required on Seagate SCSI Interface drives covered by this manual.

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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 SeaFONE 408/438-8222 Technical support servicesSeaFAX 408/438-2620 SeaBOARD SeaTDD 408/438-5382Modem Maximum Location Number Baud Rate BBSOperating environment Drive specificationsPower requirements Versorgungsspannungen Seek time ms typProduct Hawk 2 family wide Information ST11900W/WC ST11900WD Page Scsi interface cable connection Initial setup informationDC Power connection Scsi address selection DC power connection, 68 pin Scsi I/O connectorTerminator resistor packs Write precompensation and reduced write current Optional parity bit enableRead/Write head auto-park 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.