ServerNet


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ServerNet

An earlier clustering technology from Tandem that provided a high-speed interconnect architecture between subsystems in the mid-1990s. ServerNet I used switching technology to transfer data at 50 Mbytes/sec in both directions between CPUs, between I/O devices and between CPU and I/O. ServerNet II boosted speed to 125 Mbytes/sec. Originally used with Tandem's proprietary fault-tolerant computers, ServerNet became available for Windows NT clusters. See clustering, SAN and Tandem.


Tandem's ServerNet Interconnect
Used for both MPP applications and SMP clusters, this conceptual diagram shows how ServerNet interconnected a high-speed switch between CPUs and I/O subsystems. The CPUs are purple; the disks are orange, and the green pipes are the ServerNet mesh. See MPP and SMP. (Image courtesy of Tandem Computers Incorporated.)
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The original ServerNet site, the San Jose Mercury News, went live with its classified advertising system in January.
Tandem was adapting its ServerNet cluster interconnect technology to put fail-over capability in Microsoft's NT Server.
The configuration included a single Compaq ProLiant 8500 as the database server, connected by ServerNet II to eight Compaq ProLiant 8500 servers, running the PeopleSoft 8 application.
SII said it aims to enable its system users to migrate to the new NT-based products, and that it will continue selling, supporting and improving current products and will complete work on its new Coyote/3, System/77 on ServerNet and SQL database compliance.
Under the agreement, Compaq will use Polaris Communications' high-speed PCI-to-ESCON adapter cards to run with ServerNet, a core interconnect technology built into Compaq's NonStop systems.
SII will offer tandem Computers' ServerNet Interconnect technology to meet multimedia data speed and volume demands it anticipates for its funware systems.
Dual active RAID controllers -- Array-based failover - no host drivers required -- Fully protected mirrored cache -- Ultra SCSI, ServerNet or fibre channel host connections -- DAE available for Ultra SCSI or fibre channel drives -- Integrates solid state disks (SSD) for maximum performance -- Both ACE and DAE have no single point of failure.
Tandem said it will adapt its Servernet cluster interconnect technology to provide fail-over capability to Microsoft's NT Server, while its NonStop ServerWare will support Tandem's scalable SQL database, clustered transaction processing and distributed messaging and object management environment.
Tandem, Himalaya, NonStop, ServerNet, and the Tandem logo are trademarks or registered trademarks of Tandem Computers Inc.
Tandem's new ServerNet line will include a server running Tandem's Guardian operating system and another running Unix.
Compaq's compute farm technology demo includes a 108-CPU rack of six dual Pentium II processor-based Professional Workstation 6000s and 24 quad Pentium Pro processor-based Professional Workstation 8000s interconnected with Compaq Netelligent 100 Mb Ethernet switches and Tandem ServerNet.
The new ProLiant Cluster Series F will be the first in the industry to offer the reliability, scalability and performance of Tandem's ServerNet interconnect in a clustered environment.