HP ProLiant CL380 ServerNet II SAN Interconnect for Scalable Computing Cluster
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- HP ProLiant CL380 | ServerNet II SAN Interconnect for Scalable Computing Cluster - Page 1
System Vendor and Independent Software Vendor Support 8 The Future with InfiniBand 9 Summary 9 ... Compaq ServerNet II SAN Interconnect for protocol overhead generated by traditional network technologies impedes server-to server communication and limits the scalability, availability, and - HP ProLiant CL380 | ServerNet II SAN Interconnect for Scalable Computing Cluster - Page 2
INFORMATION REMAINS WITH RECIPIENT. IN NO EVENT SHALL COMPAQ BE LIABLE FOR ANY DIRECT, CONSEQUENTIAL, INCIDENTAL, Server for Windows NT are trademarks and/or registered trademarks of Microsoft Corporation. Novell and NetWare are registered trademarks and IntranetWare, NDS, Novell Directory Services - HP ProLiant CL380 | ServerNet II SAN Interconnect for Scalable Computing Cluster - Page 3
are too inefficient for intense server-to-server communication. Therefore, in December 1997 Compaq and other industry leaders choice for implementing clusters of industry-standard servers. Operating system vendor and independent software vendor support for ServerNet II includes Windows 2000 Data - HP ProLiant CL380 | ServerNet II SAN Interconnect for Scalable Computing Cluster - Page 4
of messaging traffic in a cluster. Therefore, in December 1997, Compaq, Intel, Microsoft and other industry leaders developed the Virtual Interface specification to promote an industry-standard architecture for server-toserver communication.1 Unlike traditional networking technologies, the - HP ProLiant CL380 | ServerNet II SAN Interconnect for Scalable Computing Cluster - Page 5
card processing for most financial communities and consumers worldwide. Compaq Integrity products use ServerNet to achieve superior Unix availability to the telecommunications industry. NonStop Cluster products based upon Compaq ProLiant servers and the SCO operating system rely upon ServerNet for - HP ProLiant CL380 | ServerNet II SAN Interconnect for Scalable Computing Cluster - Page 6
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 . Multiple switches can be cascaded to support as much bandwidth as needed. Figure 3. Six-node cluster with redundant - HP ProLiant CL380 | ServerNet II SAN Interconnect for Scalable Computing Cluster - Page 7
ServerNet II protocols also reduce the typical operating system services necessary to support traditional protocols. For small messages (64 Bytes II hardware tests performed using a Compaq ProLiant 8500 server configured with eight 500-MHz processors. The server was processing 512-byte bursts over - HP ProLiant CL380 | ServerNet II SAN Interconnect for Scalable Computing Cluster - Page 8
typically exported by operating systems. Fault Tolerance at All Levels Compaq ServerNet II technology has fault-tolerance built into multiple architectural Support OSV/ISV solutions for ServerNet II products will include: • Windows 2000 Advanced Server and Datacenter Server: − Microsoft SQL Server, - HP ProLiant CL380 | ServerNet II SAN Interconnect for Scalable Computing Cluster - Page 9
add robustness to a cluster and allow it to scale to tens of servers. For the long term, Compaq is investing in the InfiniBand Architecture as a common I/O switchedfabric interconnect for the industry. Compaq intends to emulate InfiniBand verbs using ServerNet II during 2000 for early InfiniBand
W
HITE
P
APER
1
Doc Number
TC000602WP
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June 2000
Compaq Computer
Corporation
Prepared by
ISSD Technology
Communications
C
ONTENTS
Executive Summary
.........
1
Introduction
.....................
3
Traditional
Networks versus
System Area
Networks
..........................
3
ServerNet II SAN Technology
Improves the Response
of Clusters
.............................
5
Compaq ServerNet
II Technology
...................
5
ServerNet II Hardware
Components
..........................
6
Low Latency Techniques
Improve Performance
.............
7
ServerNet II Performance
Summary
...............................
7
ServerNet II Leverages VI
Architecture Features to
Improve Scalability
.................
8
Fault Tolerance at All Levels ..8
Operating System Vendor and
Independent Software
Vendor Support
.....................
8
The Future with
InfiniBand
........................
9
Summary
..........................
9
Compaq ServerNet II SAN Interconnect for
Scalable Computing Clusters
E
XECUTIVE
S
UMMARY
This paper introduces 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 clusters.
In contrast, the ServerNet II SAN interconnect is a high-bandwidth, low-latency network
technology that is proven to handle intense messaging in server clusters.
A ServerNet II
SAN allows applications to be distributed over multiple servers, which increases cluster
scalability through greater parallelism and higher availability.
The reader should be
familiar with the
Virtual Interface Architecture
.
Please direct comments regarding this communication to the ISSD Technology Communications Group at this Internet
address: