Compaq ProLiant CL1850 ServerNet II SAN Interconnect for Scalable Computing Cl
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- Compaq ProLiant CL1850 | ServerNet II SAN Interconnect for Scalable Computing Cl - Page 1
..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 EXECUTIVE SUMMARY This paper introduces Compaq's ServerNet II system area network (SAN) interconnect for use in - Compaq ProLiant CL1850 | ServerNet II SAN Interconnect for Scalable Computing Cl - Page 2
THE USE OF THIS INFORMATION REMAINS WITH RECIPIENT. IN NO EVENT SHALL COMPAQ BE LIABLE FOR ANY DIRECT, CONSEQUENTIAL, INCIDENTAL, SPECIAL, PUNITIVE OR OTHER are registered trademarks and IntranetWare, NDS, Novell Directory Services, GroupWise, BorderManager, and ManageWise are trademarks of Novell - Compaq ProLiant CL1850 | ServerNet II SAN Interconnect for Scalable Computing Cl - Page 3
communication. Therefore, in December 1997 Compaq and other industry leaders developed the system vendor and independent software vendor support for ServerNet II includes Windows 2000 SCO UnixWare 7.1. TRADITIONAL NETWORKS VERSUS SYSTEM AREA NETWORKS Clustered servers can communicate with each - Compaq ProLiant CL1850 | ServerNet II SAN Interconnect for Scalable Computing Cl - Page 4
large amount of messaging traffic in a cluster. Therefore, in December 1997, Compaq, Intel, Microsoft and other industry leaders developed the Virtual Interface (VI) 1 For more information, see technology brief Virtual Interface Architecture for System Area Networks, document number 0184-0699-A. 4 - Compaq ProLiant CL1850 | ServerNet II SAN Interconnect for Scalable Computing Cl - Page 5
Parallel relational database architectures rely on clustering multiple nodes to support very large databases and increase database availability. Queries, updates within several Compaq NonStop products. Compaq Himalaya systems with ServerNet SAN messaging provide NonStop transaction services to - Compaq ProLiant CL1850 | ServerNet II SAN Interconnect for Scalable Computing Cl - Page 6
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. 6 - Compaq ProLiant CL1850 | ServerNet II SAN Interconnect for Scalable Computing Cl - Page 7
node. If necessary, packets from the same data file can travel different paths to reach the destination. As the typical operating system services necessary to support traditional protocols. For ServerNet II hardware tests performed using a Compaq ProLiant 8500 server configured with eight 500-MHz - Compaq ProLiant CL1850 | ServerNet II SAN Interconnect for Scalable Computing Cl - Page 8
• Hardware VI completion queues • Hardware flow control • Full VI ptag support The VI Programming Library (VIPL) interface is a user-mode interface for exported by operating systems. Fault Tolerance at All Levels Compaq ServerNet II technology has fault-tolerance built into multiple architectural - Compaq ProLiant CL1850 | ServerNet II SAN Interconnect for Scalable Computing Cl - Page 9
specific fabrics for interprocessor communication, IP networks, and storage area networks. A single I/O architecture is needed both to communication fabric for both I/O and interprocessor communication. During 2000, Compaq ServerNet II will provide customers with a bridge to InfiniBand by
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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: