Author Archives: Ronald

Avoid Linux Page Allocation Failures By Adjusting Virtual Memory Configuration

Sometimes on a Linux web server you may see memory allocation failures in your /var/log/syslog file. This can happen even when there is spare RAM and swap. On a server running Apache or Nginx, they may look something like this: … Continue reading

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ASUS KGPE-D16 BIOS Update 2202 Enables S3 Sleep Mode

ASUS has released a BIOS update version 2202 as of April 20, 2012 that enables the S3 sleep mode. S3 sleep uses very little power to maintain RAM contents in order to allow rapidly resuming use of the computer. I … Continue reading

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Cases for Dual Processor AMD Opteron and Intel Xeon Servers and Workstations, A Comparison of Rosewill RSV-L4000 Server Chassis and Cooler Master HAF 932 Workstation Chassis

If you’re building a mid-range to high-end server or workstation using a dual or quad processor motherboard, one of the challenges you face is finding a case for the system. Many dual or quad processor boards are using SSI-EEB form … Continue reading

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“Gotchas” With ASUS KGPE-D16 Motherboards

I’m going to be keeping a list of problems I’ve noted with various applications of ASUS KGPE-D16 motherboards and will be updating this posting as I gather more information. I’ll also be including notes on compatible interface cards and operating … Continue reading

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AMD Opteron Roadmap for G34 and C32 Sockets Include Planned Opteron 6300 and 4300 Series Chips

One of the strengths of the AMD Opteron platform in recent years has been how AMD continues to improve the processors without changing the sockets. That means you can take a C32 or G34 motherboard built a couple of years … Continue reading

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Fixing Ubuntu Hibernate (Sleep to Disk) When Resume Never Works

Recently I was puzzled by how the hibernate (sleep to disk) and resume (wake from disk) function in Ubuntu 11.10 was not working correctly on a workstation with multiple hard drives. It appeared to save the memory to disk after … Continue reading

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Notes on Performance and Power When Upgrading ASUS KGPE-D16 Motherboard from Opteron 6100 to 6200 Processors

If you’ve got a computer built around AMD’s Opteron 6100 series processors and are thinking about upgrading to the newer 6200 series processors with their new Bulldozer cores, here’s some information that may be of help. Usually such upgrades are … Continue reading

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Monitoring Your RAID Array Drives and Standalone Drives In Ubuntu Linux using Smartmontools

RAID arrays are a common means to boost drive performance and improve data safety from drive failures. Unfortunately, booting off a RAID array is often a problem as the Linux bootloader doesn’t know how to boot from any kind of … Continue reading

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