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.

  • Xen-strap (,
  • 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

Edit | Attach | Watch | Print version | History: r5 < r4 < r3 < r2 < r1 | Backlinks | Raw View | WYSIWYG | More topic actions
Topic revision: r5 - 2008-01-16 - MarianKLEIN
    • Cern Search Icon Cern Search
    • TWiki Search Icon TWiki Search
    • Google Search Icon Google Search

    Virtualization All webs login

This site is powered by the TWiki collaboration platform Powered by PerlCopyright & 2008-2022 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
or Ideas, requests, problems regarding TWiki? use Discourse or Send feedback