Shadow copies are filling up space on the disk and causing Rapid Recovery backups to fail with VSS errors.
On the core console, the agent backups are failing with the following error:
- The transfer failed: 'Call to service method https://agent_name:8006/apprecovery/api/agent/transfer/snapshots POST failed: The transfer failed: 'Key being added: 'Alphaleonis.Win32.Vss.VssWMComponent'''
SentinelOne is an antivirus solution, that uses shadow copy as a protection against virus attacks. Unfortunately, that causes Shadow Copy storage to get filled up and, in turn, causes Rapid Recovery backups to fail because no more shadow copies can be created.
Upgrade to SentinelOne version 188.8.131.52 or later.