vSphere 5.0 and later support Storage vMotion with snapshots on a virtual machine. To interrupt the defragmentation process, at the command line, press CTRL+C. Performing Storage vMotion in vSphere 4.x and earlier environments.Ensure that there are no snapshots before:.When using a third-party backup software, ensure that snapshots are deleted after a successful backup.Do not use a single snapshot for more than 24-72 hours.If you get the 'Virtual Disk Consolidation needed' message, go to the Snapshot menu and click 'Consolidate' it should run correctly now and remove the message. However, for a better performance, use only 2 to 3 snapshots. Either reload the VM by using PowerCLI or remove the VM from the Inventory and re-add it again. VMware recommends only a maximum of 32 snapshots in a chain.Here are the VMware best practices on snapshots: The maximums size of a snapshot will vary based on block size, overhead, etc.
Q: Does it matter how large a VM is when taking snapshots? Are there size limits/restrictions or at the very least guidlines when taking snapshots? We use altaro for backups in our environment and it utilizes snapshots but I noticed on one of our larger VM’s (around 1.5TB in disk) it will fail in its backup process and require a disk consolidation task.
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