Unisys upgrades ClearPath mainframes

Bigger iron tweaked for clustering as well as cryptographic and Java processing.

Unisys has upgraded its line of ClearPath mainframe servers with new models that run the company's CMOS processors or the more economic though not-as-speedy Intel processors.

Unisys will market the ClearPath Dorado 700, running the CMOS chips, for high-end mainframe needs and the Intel-based ClearPath Dorado 4000 and Libra 4000 mainframe-class servers for more economically minded buyers.

The Dorado 700 can rev up to 5,700 million instructions per second (MIPS) for a single image, said Bill Maclean, vice president of the ClearPath line at Unisys.

The system can use up to 32 CMOS processors and runs the Unisys OS 2200 operating system developed by Sperry. The company claims it is twice as fast as its CMOS-based predecessor, the Dorado 300.

Moreover, up to four Dorados can be yoked together to work as a single system, using Unisys' Extended Processor Complex record lock processor.

"You can cluster four systems into a single image and get over 20,000 MIPS," Maclean said. 'That's 128 processors with a huge amount of connectivity and memory.' He added that the scaling of the machine's performance is nearly, though not quite, linear in relation to the number of machines used.

Basic configurations of the Dorado 700 start at $4.5 million.

Unisys' new set of midrange mainframe, Intel-based servers can operate at up to 800 MIPS. The servers, which can run Unisys OS 2200 and MCP operating systems, use up to eight quad-core Intel Xeon 7350 x64 processors in a single unit.

These midline units could also include optional add-on processors. Both the Dorado 4000 and Libra 4000 can use a co-processor designed for encrypting sensitive data, and the Libra 4000 can use a Java performance booster called JProcessor.

The Dorado 4000 models start at $498,000 and the Libra 4000 models are priced from $750,000, though Unisys also offers a processing-on-demand leasing agreement in which costs are accrued depending on how much the systems are used.

About the Author

Joab Jackson is the senior technology editor for Government Computer News.

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