Virtualized gLite services

There are several projects that are using or aiming to use VMs for running gLite services. This is a list of such projects.

  • gLite testing (Andreas Unterkircher).
  • INFN-GRID (Leonello Servoli) are developing high-availability gLite services with failover VMs. VM state is kept in network block devices, and if one service, VM or hardware fails, then the VM is continued on a different physical machine. They use cfengine for configuration automation and nagos for monitoring.

Running gLite services in Xen VMs is straight forward. There are some points worth mentioning:

  • By default, the hwclock in a Xen domain is read-only, and can cause problems with ntp.
  • Software updates may cause /lib/tls to be overwritten.
  • At least one IP address should be allocated per domain, or IP setup can be quirky.
OS images with gLite services for use with Xen can be created at
A static list of images can be found here:

-- Main.hbjerke - 19 Jan 2007

This topic: Virtualization > WebHome > WebTopicList > GLite
Topic revision: r4 - 2007-07-21 - AndreasUnterkircher
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