QuickSpecs

ProLiant BL20p and p-Class system

Standard Features

Compaq ProLiant BL p - Class Server Blade Enclosure and Interconnects (continued)

BL p - Class Power Distribution In the ProLiant BL p-Class infrastructure, redundant -48 VDC power (from the power enclosures or facility DC power) is distributed from the power enclosures to the server blade enclosures through the Compaq bus bar system. Hinges attach the ProLiant BL bus bars to the rails in a rack. The bus bars swing open from the centre to enable easy rear access to the server blades and network cables. Power is distributed redundantly through independent A- and B-sided bus bars.

Three different power distribution solutions are available depending on the maximum number of server blade enclosures planned for the rack:

•Compaq ProLiant BL p-Class scalable bus bar

•Compaq ProLiant BL p-Class mini bus bar

Note: To support a full 42U rack of BL20p server blades (6 server blade enclosures), two mini bus bars are needed.

•Compaq ProLiant BL p-Class power bus box

		Power Enclosures	Server Blade Enclosures	Max. Rack Space
		Supported	Supported	Occupied
	Scalable Bus Bar	1 or 2	≤ 5	36U

	Mini Bus Bar	1	≤ 3	21U

	Power Bus Box	1	1	9U


Required Power Source	Two 30amp redundant power feeds per power enclosure
	Connectors

–NEMA receptacles
NA 1-phase	L6-30, 250v, 30A 3-wire
NA 3-phase	L15-30, 250V, 30A, 4-wire

Optimized for power cabling from bottom and network cabling from top

For cabling information, refer to the Compaq Web site at

http://www.compaq.com/products/servers/

Note: This Web site is available in English only.

DA-11411

Canada — Version 1 — August 26, 2002

p-Class specifications

The Compaq p-Class is a notable line of server systems that was introduced by Compaq in the late 1990s. Designed primarily for deployment in enterprise environments, the p-Class machines were built to address the growing demands for robust computing power and reliability. Targeting both internet and enterprise applications, these servers offered a compelling combination of performance, scalability, and manageability.

One of the remarkable features of the p-Class systems is their modular design. This architecture allows for easy upgrades and maintenance, which is a significant advantage for IT administrators looking to optimize their server investments over time. Users can swap out components such as processors, memory, and storage drives without extensive downtime or complex procedures.

The p-Class servers also featured advanced hot-plug capabilities, enabling the replacement of failed components without powering down the system. This is particularly crucial in mission-critical environments where uptime is paramount. Additionally, p-Class systems included redundancy in critical components, such as power supplies and cooling fans, to ensure maximum availability.

In terms of technology, the p-Class utilized powerful Intel processors, which provided a robust performance that was competitive for its time. The servers also supported a wide range of operating systems, including various flavors of Windows NT, Unix, and Linux, making them versatile for different enterprise applications.

A key characteristic of the p-Class was its ability to support a highly scalable architecture. Organizations could start with a smaller configuration and expand as their needs grew. This scalability, combined with Compaq's proactive management tools, allowed for effective monitoring and maintenance of server health.

Security was another focus area for the p-Class series, with features designed to help protect sensitive data and maintain integrity. Enhanced security protocols and management capabilities allowed IT staff to implement and monitor strict access controls.

The Compaq p-Class servers made a significant impact in the late '90s and early 2000s as businesses were rapidly evolving to meet the demands of digital transformation. With their robust features, modular design, and focus on reliability and performance, the p-Class servers helped lay the groundwork for modern enterprise server infrastructure, showcasing Compaq's commitment to innovation in a competitive market.