Category Archives: Linux

Infrastructure as a Service (IaaS) – Why? What about security? What about SOA?

IaaS or “Infrastructure as a Service” is a concept and frequently offered product in the Cloud Computing space that currently appears to have as much pervasiveness as any of the other service types. Continue reading →

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GPFS Tips and Tricks

If you want to mount a file system read-only (for this example, let’s say the gpfs file system is named ‘bob‘): echo ‘ro’ > /var/mmfs/etc/localMountOptions.bob (remember, ‘bob’ is the name of the fs) – restart gpfs on that node. If … Continue reading →

Posted in AIX, Linux, Scripts, Storage, UNIX, [CheapHA-HPC] | Tagged | Comments Off

Apps.gov – GSA’s iTunes Store for Cloud Computing?

If you haven’t yet seen the hype, GSA is currently hosting APPS.GOV which is an online marketplace for Cloud Computing applications for US Federal Agencies. This is driven by the Federal Cloud Computing Initiative. There are a number of categories … Continue reading →

Posted in Architecture, Cloud Computing, Linux | Tagged , , , , | 1 Comment

[CheapHA-HPC] A Different Slightly Approach To Grid Computing

I’ve been working with a customer that has a surprisingly common workload – document management & processing, as well as very common constraints – no development staff with parallel programming (MPI, etc) expertise, no time to build a completely new … Continue reading →

Posted in Cloud Computing, J2EE, Java, Linux, Sizing, Storage, Tuning, VMWare, [CheapHA-HPC] | Tagged , , | Comments Off

[CheapHA-HPC] Part 1 – First Steps

This is part 1 in a multipart adventure into cost-efficient supercomputing and high availability. By now you’ve probably heard of Beowulf Linux clusters, HPC clusters made from PlayStations, the monsters listed at http://www.top500.org/, Amazon’s EC2/S3, and the like. Well, what … Continue reading →

Posted in J2EE, Java, Legacy, Linux, Models, Perl, Scripts, Sizing, Tuning, UNIX, [CheapHA-HPC] | 2 Comments