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UnderSurveillance  

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Monitoring is similar to backup: It is not a question of whether or not to monitor, but how. The solution to this problem is to have a good strategy with the right priorities and the right tools.

Profiles in Storage  

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The selection of various HPC storage solutions is one of the most pressing issues in HPC, requiring research, study, and planning to be effective, which usually means understanding how your applications perform I/O. We present some techniques for examining I/O patterns in HPC applications.

Flexible Storage  

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Set up your own network attached storage system with minimum effort with the help of FreeNAS. Thanks to the ZFS filesystem, you have more flexible storage, which you can also provide via iSCSI.

Move On  

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Monitoring your internal server environment just became easier with MMSOFT Design's Mobile PC Monitor software.

Mind the Gap  

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Windows administrators: Expand your horizons and opportunities with Unix commands via Cygwin. We show how to use Cygwin's extensive list of Unix utilities for scripts, maintenance, compatibility, and automation.

Tune-Up  

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Keeping your key files in RAM reduces latency and makes response time more predictable.

Ignition  

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As a replacement for the legacy System V init, Upstart has abandoned many concepts: Instead of runlevels, Upstart has jobs and events, and its ability to start services in parallel considerably accelerates the boot process. Yet, configuration is almost child's play.

InflatableFirewall  

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pfSense is inconspicuous at first glance but impressive when you take a closer look. Even advanced features like high availability are part of its repertoire – not bad for a small firewall.

Test Lab  

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Fedora 16 comes with some desktop improvements, but for admins, the real story is about virtualization.

Engine Room toBridge  

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With the command-line tool virsh, a part of the libvirt library, you can query virtual machines to discover their state of health, launch or shut down virtual machines, and perform other tasks – all of which can be conveniently scripted.

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