PowerEdge 1500SC: Bogus Memory and Linux Errors

Mark Berry November 1, 2010

Sometimes the trickiest errors are the ones you should ignore.

I’m running PBX in a Flash, based on CentOS 5.2, on a Dell PowerEdge 1500SC. Back in February, I got a segmentation fault error and after some discussion on the PBX in a Flash forum, concluded that I needed to replace the hardware or at least the memory. Now I’m not so sure.


PBX in a Flash as a Virtual Machine, Take 2: Hyper-V

Mark Berry February 16, 2010

Back in November 2008, I blogged  about Setting Up PBX in a Flash, Part 1: Configuring a Virtual Machine. That article discussed running PBX in a Flash (PiaF) under Microsoft Virtual PC or Virtual Server 2005. Within a couple weeks, I abandoned the virtual machine approach and published Moving PBX in a Flash from a Virtual to a Physical Machine.

Recently I’ve been testing Microsoft’s free bare-metal hypervisor, Microsoft Hyper-V Server 2008 R2. Especially now that Hyper-V supports Red Hat Enterprise Linux, could Hyper-V be the answer to virtualizing PiaF on a Microsoft platform?

Let’s try it and see what happens.


Using an APC UPS with PBX in a Flash

Mark Berry March 30, 2009

Today a client had a power outage. Although the PBX in a Flash (PiaF) server was on an Uninterruptible Power Supply (UPS), the outage lasted long enough that the PiaF server crashed. Twice. Time to brave the waters of installing UPS monitoring software under Linux.

The version of PiaF that I’m using is based on CentOS 5.2, which is derived from Red Hat Enterprise Linux 5.2. APC PowerChute Business Edition supports Linux if you are using their higher-end SmartUPS line, but there is no support for BackUPS-type UPSs.


Setting Up PBX in a Flash, Part 1: Configuring a Virtual Machine

Mark Berry November 6, 2008

The introduction to this series, Getting Into VoIP, explained some of the requirements and testing that went into choosing a VoIP environment and application. One really-want (if not must-have) requirement is getting it to run in a virtual machine. There are so many advantages to virtualization:  easy backups and moving VMs to different hosts, to name two. However…



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