Articles tagged with xenserver

1. RHEL 6 Brings Virtualization Changes

   Posted on November 12, 2010 in System Administration

   Yesterday, Red Hat announced the release of Red Hat Enterprise Linux (RHEL) 6. For those of us interested in virtualization, RHEL brings along many changes.

   Performance

   RHEL 6 promises enhanced virtualization performance in several ways. First, the operating system is now theoretically able to handle 4,096 CPUs, 16 TB …

2. XenServer 5.6 cdrommon Consumes All CPU Resources

   Posted on September 01, 2010 in System Administration

   Users of Citrix XenServer 5.6 are experiencing a problem where the cdrommon process begins consuming all CPU resources and affecting virtual machine performance. Using 'top' or 'ps auwx' from dom0 shows that the process is consuming 99% or more CPU resources. Users of Xen Cloud Platform (XCP) 0.5 …

3. Daniel Feller's Top 10 Virtualization Mistakes

   Posted on August 13, 2010 in System Administration

   Daniel Feller, Lead Architect at Citrix Systems, recently concluded a series of blog posts highlighting the top ten desktop virtualization mistakes made by implementers. Here is a summary of the mistakes and links to Daniel's blog.

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   1. Storage Misconfiguration
      Daniel points out that implementers tend to focus on capacity and …

4. NTP and Your Xen-based Linux VM

   Posted on August 05, 2010 in System Administration

   As every system administrator is aware, keeping precise time on your servers can be critical. For example, if you use QueueMetrics for your Asterisk-based call center and the QM and MySQL servers are running with different times, users will notice confusing behavior as calls seem to arrive in the future …