1power cable

2power input connector

1interface connector

2colored stripe on cable

3interface cable

Most interface connectors are keyed for correct insertion; that is, a notch or a missing pin on one connector matches a tab or a filled-in hole on the other connector. Keyed connectors ensure that the pin-1 wire in the cable (indicated by the colored stripe along one edge of the cable) goes to the pin-1 end of the connector. The pin-1 end of a connector on a board or a card is usually indicated by a silk-screened "1" printed directly on the board or card.

NOTICE: When you connect an interface cable, do not place the colored stripe away from pin 1 of the connector. Reversing the cable prevents the drive from operating and could damage the controller, the drive, or both.

SCSI Device Installation Guidelines

This section describes how to configure and install SCSI devices in your computer.

SCSI ID Numbers

Internal SCSI devices must have a unique SCSI ID number from 0 to 15. If you are using the SCSI connector on the system board and a SCSI controller card installed in your computer, you have two separate SCSI buses operating. Each SCSI bus has a set of SCSI ID numbers from 0 to 15.

When SCSI devices are shipped from the factory, the default SCSI ID numbers are assigned as follows:

 

System Board Controller

 

Controller Card

 

 

 

 

 

 

Device

 

ID

Device

 

ID

Controller

 

7

Controller

 

7

 

 

 

 

 

 

Boot hard drive

 

0

Boot hard drive

 

0

 

 

 

 

 

 

 

 

 

CD or DVD drive

 

5

 

 

 

 

 

 

 

 

 

tape or DAT drive

 

6

 

 

 

 

 

 

NOTE: There is no requirement that SCSI ID numbers be assigned sequentially or that devices be attached to the cable in order by ID number. If two or more devices use the same ID, your computer may hang during POST and in SCSI BIOS.

SCSI devices installed by Dell are configured correctly during the manufacturing process. You do not need to set the SCSI ID for these SCSI devices.

If you attach additional optional SCSI devices, see the documentation for each device for information about setting the appropriate SCSI ID number.

NOTICE: Dell recommends that you use only SCSI cables purchased from Dell. Cables purchased elsewhere are not guaranteed to work with Dell computers.

Device Termination

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Dell 650 service manual Scsi Device Installation Guidelines, Scsi ID Numbers, Device Termination

650 specifications

The Dell 650, part of the PowerEdge server line, is a robust and versatile server designed to meet the demands of modern data center environments. It offers a blend of performance, scalability, and manageability, making it an ideal choice for various applications, from small businesses to large enterprises.

One of the main features of the Dell 650 is its powerful processing capabilities. It typically supports the latest Intel Xeon processors, providing multiple cores that enhance multitasking and processing efficiency. This allows businesses to run demanding workloads, including virtual machines and data-intensive applications, seamlessly.

In terms of memory, the Dell 650 supports a substantial amount of RAM, enabling efficient data handling and faster access times. The server can accommodate various configurations, thus allowing businesses to choose the optimal memory setup for their specific needs. Whether it's for a small-scale operation or a large database application, the flexibility in memory options ensures that performance is never compromised.

Storage is another critical aspect of the Dell 650. It features numerous drive bays that can support different types of storage solutions, such as SAS, SATA, and SSDs. The ability to implement RAID configurations enhances data protection and reliability, ensuring continuity of operations in the event of hardware failure. This flexibility in storage is crucial for businesses that require high availability and fault tolerance.

Networking capabilities are also noteworthy in the Dell 650. It includes advanced network interfaces that can manage high bandwidth and low-latency requirements. This ensures that data can be transferred quickly and efficiently across the network, crucial for applications that rely on real-time data processing.

In addition to its hardware features, the Dell 650 comes equipped with advanced management tools. Dell's OpenManage technology simplifies server management and monitoring, allowing IT administrators to maintain optimal performance with minimal effort. The intuitive interface provides insights into system health and alerts for potential issues, making proactive management a reality.

Overall, the Dell 650 is engineered to offer a balance of power, efficiency, and reliability. Its combination of high-performance processing, extensive memory options, flexible storage configurations, and advanced management features makes it a compelling choice for organizations looking to enhance their IT infrastructure. Whether used in virtualization, database management, or cloud computing environments, the Dell 650 stands out as a reliable solution that supports the evolving needs of modern businesses.