Compaq ProLiant CL1850 White Paper Download Page 6 | Manualshive

Page: 6 / 9

background image

W

HITE

P

APER

(cont.)

6

Doc Number

TC000602WP

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

..

.

ServerNet II Hardware Components

As shown in Figure 2, the basic hardware components for a cluster of two servers include
ServerNet II PCI Adapters and ServerNet cables. Each ServerNet II PCI Adapter has two ports (X
and Y). The respective X and Y ports on the adapters can be linked to create redundant
connections. If either the X or Y connection should fail, data is seamlessly transferred by the other
connection, thus improving reliability. ServerNet II also provides high reliability through self-
checking built into the application-specific integrated circuits (ASICs) and hardware routing
protocol. The hardware routing protocol ensures end-to-end, reliable data transfer.

ServerNet II uses industry-standard 64-bit, 66-MHz PCI components that contain several features
of the VI Architecture to move data efficiently. The link media for ServerNet II is the same
physical media used by gigabit Ethernet and Fibre channel (Serial 1000Base-CX up to 25 meters).
Links are bi-directional with speeds of 1.25 + 1.25 gigabits per second (Gb/s).

Figure 2. Redundant, direct ServerNet II interconnect for a cluster of two servers.

A ServerNet II switch is required for clusters of more than two servers. The ServerNet switch is a
2U (3.5-inch) high, 19 inch-wide, rack-mounted device with connections for twelve ServerNet
cables. Figure 3 shows a SAN consisting of six servers connected to a ServerNet II switch. A
second switch and cables can be added for increased fault tolerance. As more nodes and data paths
are added to the cluster, the aggregate bandwidth of the ServerNet II interconnect increases.
Multiple switches can be cascaded to support as much bandwidth as needed.

Figure 3. Six-node cluster with redundant ServerNet II switches.

ServerNet II PCI Adapter

ServerNet II Switch

«
...
4
5
6
7
8
...
»

Summary of Contents for ProLiant CL1850

Page 1: ...duces Compaq s ServerNet II system area network SAN interconnect for use in scalable business computing clusters Clusters generate intense server to server messaging that can overwhelm traditional network technologies The software protocol overhead generated by traditional network technologies impedes server to server communication and limits the scalability availability and flexibility of cluster...

Page 2: ... constitute an endorsement of the product or products that were tested The configuration or configurations tested or described may or may not be the only available solution This test is not a determination of product quality or correctness nor does it ensure compliance with any federal state or local requirements Microsoft Windows Windows NT Windows NT Advanced Server SQL Server for Windows NT are...

Page 3: ...aging interface that allows more efficient server to server communication through a system area network SAN The VI Architecture provides a common software and hardware interface standard so that customers can choose the optimum SAN interconnect Compaq ServerNet II gigabit Ethernet cLAN ATM or others The Compaq ServerNet II SAN interconnect is the most complete industry standard implementation of t...

Page 4: ...stem and enterprise resource planning ERP products were among the first to leverage affordable VI Architecture technology to add robustness and predictability to industry standard clusters ERP applications are configured using multiple tiers to achieve sufficient scale see Figure 1 The top tier consists of the ERP web or graphic user interface the middle tier contains application servers and the b...

Page 5: ...lization and latency measurements with ServerNet II messaging show a three fold improvement over gigabit Ethernet and TCP IP with the messaging loads just described Published database benchmark results demonstrate the value of SAN technology and efficient messaging to the database cluster system COMPAQ SERVERNET II TECHNOLOGY Compaq enterprise servers have long used ServerNet SAN technology to pro...

Page 6: ...features of the VI Architecture to move data efficiently The link media for ServerNet II is the same physical media used by gigabit Ethernet and Fibre channel Serial 1000Base CX up to 25 meters Links are bi directional with speeds of 1 25 1 25 gigabits per second Gb s Figure 2 Redundant direct ServerNet II interconnect for a cluster of two servers A ServerNet II switch is required for clusters of ...

Page 7: ...unication protocols are implemented in native hardware to reduce CPU utilization to a small fraction of that experienced with traditional protocols such as TCP IP ServerNet II protocols also reduce the typical operating system services necessary to support traditional protocols For small messages 64 Bytes or less latency and CPU measurements show that ServerNet II provides a three fold improvement...

Page 8: ...g systems Fault Tolerance at All Levels Compaq ServerNet II technology has fault tolerance built into multiple architectural levels Each X and Y port in a ServerNet II Adapter connects to a unique fabric in a ServerNet SAN Messages are assigned a port and routed to the destination by one of the ServerNet fabrics If a failure occurs in the port its associated link or fabric the affected messages ar...

Page 9: ... distributed computing systems by using a single communication fabric for both I O and interprocessor communication During 2000 Compaq ServerNet II will provide customers with a bridge to InfiniBand by implementing InfiniBand verbs over ServerNet II This will allow ISVs and early adopters to begin porting their applications to InfiniBand before InfiniBand hardware is available SUMMARY Compaq s Ser...

Reviews:

No comments

Related manuals for ProLiant CL1850

Brand: VALKPC Pages: 20

Brand: Gateway Pages: 96

Brand: Gateway Pages: 2

Afolux LX Series

Brand: IEI Technology Pages: 131

320-00-00010-01

Brand: Life Fitness Pages: 36

Brand: IWILL Pages: 72

Brand: Acer Pages: 48

Brand: Acer Pages: 68

5535-5050 - Aspire

Brand: Acer Pages: 11

Brand: Acer Pages: 24

Brand: Acer Pages: 24

Brand: Acer Pages: 22

Brand: Acer Pages: 117

Brand: Acer Pages: 108

AcerPower S series

Brand: Acer Pages: 53

Brand: Acer Pages: 113

Brand: Acer Pages: 122

Brand: Acer Pages: 72

Brands by name

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Popular brands

Load more brands