1-11

4

3

2

1

Figure 1-9. Rear view of expansion slot locations

Slot location 4 is a Shared PCI/ISA slot for access to either the PCI bus or the ISA bus. Slots 1, 2, and 3 are PCI slots for access to the 33-MHz PCI bus. They provide data transfer rates up to 133-Mb/s. The PCI bus provides peripheral transactions at a system clock speed of 33-MHz.

Disk Controller

The Dual Channel Integrated Wide-Ultra SCSI-3 controller utilizes two

￿independent SCSI channels (Ports). Port 1 is connected to the internal hot-plug drive cage. Port 2 can either be connected to the devices in the removable media bay or to the external Wide-Ultra SCSI-3 port.

Dual Channel Integrated Wide-Ultra SCSI-3 controller on the PCI local

￿bus. The controller is capable of handling up to three hot-plug hard drives and two non-hot-plug SCSI devices without utilizing an expansion slot. This controller performs at a maximum rate of 40 megabytes per second (MB/s).

Doubles Fast-Wide SCSI-2 transfer rates from 20-MB to 40-MB per

￿channel on each channel.

Optional controller boards available for expanding storage capacity. Optional boards are the SMART-2SL Array Controller, the SMART- 2DH Array Controller, the SMART-2/P Array Controller, and the Wide- Ultra SCSI-3 Controller.

Compaq ProLiant 1850R Setup and Installation Guide

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Compaq 1850R manual Disk Controller, Rear view of expansion slot locations

1850R specifications

The Compaq 1850R, introduced in the late 1990s, is a robust and versatile server known for its reliability and performance. This rack-mounted server was designed to cater to the evolving needs of businesses that required high availability and scalability in their IT infrastructure.

At the core of the Compaq 1850R is its support for dual Intel Pentium III processors. This dual-processor configuration provides enhanced multitasking capabilities, allowing the server to handle more simultaneous processes effectively. With a clock speed of up to 1 GHz, businesses could run demanding applications and services with improved speed and efficiency.

One of the standout features of the Compaq 1850R is its impressive memory capacity. The server supports up to 8GB of SDRAM, which allows it to manage larger datasets and facilitate better performance for memory-intensive applications. This makes the 1850R an ideal choice for database management and enterprise resource planning.

Storage options are another highlight of the Compaq 1850R. The server can accommodate multiple hot-swappable hard drive bays, supporting both SCSI and IDE drives. This flexibility allows organizations to scale their storage needs as their data requirements grow. The ability to add or replace drives without downtime is a significant advantage for maintaining high availability environments.

In terms of networking, the Compaq 1850R features integrated Ethernet ports for reliable network connectivity. The server also supports advanced RAID configurations, which enhances data protection and improves performance by distributing I/O across multiple drives. This feature is particularly important for businesses that rely heavily on data integrity and availability.

The design of the 1850R is optimized for rack mounting, a standard for enterprise environments looking to maximize space and efficiency. Its compact form factor fits seamlessly into standard 19-inch racks, making it suitable for various server rooms and data centers.

Overall, the Compaq 1850R is a powerful server that combines solid processing capability, extensive memory support, and flexible storage options. It remains a valuable asset for organizations seeking to build a reliable and scalable IT infrastructure. As businesses continue to demand efficiency and performance from their servers, the 1850R stands as a testament to Compaq's commitment to quality and innovation in the tech industry.