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Migration with VMotion Causes the Creation of Incremented Files when Migration of a VirtualCenter 1.0.x Virtual Machine Fails

Details

Why do I have extra incremented virtual machine files?

Solution

Virtual machines created with VirtualCenter 1.1 (or later versions) use a new non-UUID based naming structure for their files. If a virtual machine with this new naming structure is migrated, it maintains the same naming (if possible) on the destination host. If a virtual machine with the old UUID-based naming structure is migrated, however, the naming structure for its files are converted to the new naming structure on the destination host.

This renaming of old virtual machine files has a side effect if the migration fails. Even on a failed migration, VirtualCenter retains the knowledge that a particular name was used, and it does not reuse that name for future migrations. So, if you attempt to migrate a virtual machine using the old naming structure, to, for example, /home/vmware/vmtest on the destination host, and that migration fails, then the next attempt to migrate the machine tries to use the name /home/vmware/vmtest_1. If that migration also fails, then the next attempt tries the name /home/vmware/vmtest_2, and so forth.

Once a migration succeeds, then this iterative naming stops, as the old virtual machine files have been successfully moved into the new naming structure.

Keywords

47349; 1386; virtual; center; vc130

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  • KB Article: 1386
  • Updated: Aug 14, 2009
  • Products:
    VMware VirtualCenter
  • Product Versions:
    VMware VirtualCenter 1.0.x
    VMware VirtualCenter 1.1.x
    VMware VirtualCenter 1.2.x
    VMware VirtualCenter 1.3.x