Archive for August, 2006

Using Veritas Volume Manager with RHAS 4.0

I have used Veritas Volume Manager (VxVM) and Veritas File system (VxFS) for as long as I can remember. All of my VxVM and VxFS experience has been on Solaris, so I thought I would install both products on a Linux host to see if anything was different. The Linux installation turned out to be […]

Linux udev humor

The udev device management framework is one of the new features that was added to the Linux 2.6 kernel, and allows the /dev namespace to be populated based on hotplug events sent from the kernel to the userspace udevd daemon. While reading through the udev FAQ, I found a good explanation of udev: Q: How […]

Concert review: Cinderella & Poison

I grew up listening to hard rock, and used to bang my head to the likes of Motley Crue, Cinderella, Guns N’ Roses, Ratt, Warrant, Skid Row and the rest of the bands who made the 1980s special. Most of these bands are still touring in one capacity or another, and I recently had the […]

Checking devices for bad sectors

I recently had a friend contact me because he was getting an error similar to the following in his Redhat Linux system log (I didn’t save the error while debugging the problem, so I grabbed this one from the web): kernel: disk I/O error: dev 08:01, sector 25590410 kernel: SCSI disk error : host 0 […]

Concert review: Candlebox

I grew up loving rock and roll, and spent a fair amount of time in college listening to music (especially when I was writing code for class). One band that got a fair amount of play time on my home stero was Candlebox. They had a cool relaxing sound, and could jam with the best […]

Getting E-mail notifications when MD devices fail

I use the MD (multiple device) logical volume manager to mirror the boot devices on the Linux servers I support. When I first started using MD, the mdadm utility was not available to manage and monitor MD devices. Since disk failures are relatively common in large shops, I used the shell script from my SysAdmin […]

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