VCSA scheduled file based backup failing - NFS AWS storage Gateway to a S3 bucket - error "BackupManager encountered an exception"

Products

• VMware vCenter Server

Issue/Introduction

Manual backups succeed consistently to same target and using same credentials as scheduled backup.

• /var/log/vmware/applmgmt/backup.log
  
  2026-02-17T04:59:34.379 [20260217-045909-25092719] [MainProcess:PID-484857] [MountedFSStorageIOLib::mount:MountedFSStorageIOLib.py:231] INFO: Failed to mount the nfs share <NFS_Server>:/<path>/<VC_FQDN>/<path> at /storage/remote/backup/nfs/<NFS_Server>/<path>. Err- rc: 32, out=, err=Created symlink /run/systemd/system/remote-fs.target.wants/rpc-statd.service → /usr/lib/systemd/system/rpc-statd.service.mount.nfs: mounting <NFS_Server:/<path>/<VC_FQDN>/<path>/ failed, reason given by server: No such file or directory


• /var/log/vmware/applmgmt/fileintegrity.log
  
  2026-02-17T04:59:20.214Z ERROR: [FILE_INTEGRITY_CHECK] Overall status : FAILED. RESULTS: TOTAL: 80785 VERIFIED: 80788 [ADDED: 3 DELETED: 0 MODIFIED: 58]

Cause

• Other tasks causing strain on the VCSA or network/storage latency keeping the VCSA backup from completing at the scheduled time.

Resolution

Change backup scheduled task to a different time that has been confirmed to not have tasks running that would strain the VCSA.