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SysAdmin to SysAdmin: Parallel I/O for clusters using PVFS
When you're trying to share files and perform I/O-intensive operations across 100+ nodes of a Beowulf cluster, the old model of a central NFS file server handling every client request begins to break horribly. What many cluster admins do instead is limit NFS to distributing home directories across the cluster, and using some form of parallel I/O model for doing "real work."
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Keeping Linux users informed, solving problems
One of your primary responsibilities as system administrator is communicating with the system users. You need to make announcements, such as when the system will be down for maintenance, when a class on some new software will be held, and how users can access the new system printer. You can even start to fill the role of a small local newspaper, letting users know about new employees, RIFs, births, the company picnic, and so on.
How to get a job as a Linux administrator
If you ask Scot Melland, it's a good time to be a Linux professional. IT jobs across the board are picking up, but Melland, the CEO of Internet career site Dice, says Linux knowledge is a particularly hot commodity. Job postings on Dice for Linux professionals are multiplying at a much faster rate than any other skill set.
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Red Hat Desktop is the newest member of the Red Hat Enterprise Linux family. It provides a high-quality, full-featured client system that is suitable for use in a wide range of desktop deployments.
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