update: I noticed that we have low resource events on VBR server itself. When this happens suddenly memory usage spikes to 100%. Surprisingly this does not happen when the backup server is under heavy load during night with backup/copy/offloads, it happens most of the time during office hours. Veeam.Backup.Manager.exe then uses 28 - 32 GB memory. I'm not sure if this is expected. The low resource events start to appear one day after Veeam 12.1.1 update. But I've to admin that I've reduced vRAM for VBR VM a while before that as Veeam One reported VBR VM as massively oversized. I then run the size estimator and resized to 16 GB (we have proxies and dedicated gateways in every location, overall 30-40 systems).
Windows successfully diagnosed a low virtual memory condition. The following programs consumed the most virtual memory: Veeam.Backup.Manager.exe (12136) consumed 27867426816 bytes, Veeam.Backup.UIServer.exe (9300) consumed 1361203200 bytes, and Veeam.Backup.Manager.exe (5304) consumed 1239736320 bytes.
Windows successfully diagnosed a low virtual memory condition. The following programs consumed the most virtual memory: Veeam.Backup.Manager.exe (26784) consumed 28095815680 bytes, Veeam.Backup.UIServer.exe (9300) consumed 1229914112 bytes, and Veeam.Backup.Service.exe (5848) consumed 924766208 bytes.
Windows successfully diagnosed a low virtual memory condition. The following programs consumed the most virtual memory: Veeam.Backup.Manager.exe (26588) consumed 32373587968 bytes, Veeam.Backup.Manager.exe (21524) consumed 1028554752 bytes, and Veeam.Backup.RestAPIService.exe (11124) consumed 822685696 bytes.
Windows successfully diagnosed a low virtual memory condition. The following programs consumed the most virtual memory: Veeam.Backup.Manager.exe (29776) consumed 30251900928 bytes, Veeam.Backup.Service.exe (35432) consumed 1013354496 bytes, and Veeam.Backup.RestAPIService.exe (6972) consumed 832917504 bytes.
