The view from the companies contrasts sharply with that expressed by chief information officers at this week's U.K. Tech Summit, held at the Bloomberg Studios in London. There, a panel of three CIOs said they did not feel that Linux yet offers the cost advantages or peace of mind that is required for running applications critical to an enterprise.
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"Linux has been mainstream in edge-of-network applications for some time," said Adam Jollans, Linux strategy manager at IBM, referring to Web, e-mail and DNS servers, and caching appliances. "But we're now seeing it being adopted in e-commerce, commercial clusters, software development, Web applications and branch automation."
The operating system is still seen as a leading-edge technology for high-end database servers, commercial clusters, enterprise resource planning, customer relationship management and supply chain management, Jollans conceded. But he said some companies are beginning to use Linux "for real business applications, with Sage, PeopleSoft and now even J.D. Edwards porting to it, and SAP has been a long-time Linux supporter, with over 500 customers already".
When version 2.6 of the Linux kernel arrives, Jollans said, it will allow the operating system to scale up much better in systems with more processors. "The 2.6 kernel will take it up to 16-way (16 processors), effectively," he said.
Mark Hudson, a proof-of-concept consultant at database company Sybase, agreed. "We have done a lot of work perfecting of Sybase on Linux," Hudson said. "But is the operating system perfect yet? Certainly, on a four-way server, but we got the equivalent of 6.5 CPUs worth of throughput on an eight-way server."
Hudson said he expects the 2.6 kernel to solve this issue and enable Sybase's database and other server products--all of which he said will be ported to Linux by the end of the year--to scale on the operating system to servers with eight processors and beyond.
The difference in enthusiasm between CIOs and vendors is reflected in a research note issued by research firm Gartner on Thursday, which acknowledged that every operating system environment has a set of accelerators and inhibitors affecting its operation. "When the inhibitors overwhelm the accelerators, environments eventually fade and die," wrote the research firm. "In the case of Linux, the accelerators currently have greater importance, thus outstripping the inhibitors."
When weighted for strategic importance, said Gartner, the accelerators pushing Linux are more compelling than the inhibitors. Among the accelerators propelling Linux into businesses are cost pressures, the openness of Linux, and concerns with security,and licensing issues with Microsoft's platforms.
Some of the inhibitors that still haunt Linux in enterprises are its readiness for mission critical work, the migration of in-house applications, and the availability of third-party applications and integrated solutions.
ZDNet UK's Matt Loney reported from London.