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Druva Documentation

File server backup workflow

Phoenix Editions: File:/tick.png Business File:/cross.png Enterprise File:/tick.png Elite

This article provides the workflow diagrams and the steps for data backup from the following operating systems:

Note:  If you restart or reboot your servers during backups, the backup operation is aborted. Phoenix agent starts a fresh backup following the backup schedule. Alternatively, you can start a manual backup at any time. 

File servers with Windows operating system

This topic explains how data flows during data backup from the File servers with Windows operating system.

File server backup on Windows

Backup workflow

Step Operation

Step 1

A backup request is initiated and forwarded to the Phoenix agent. 

Step 2

 

Phoenix checks if Phoenix agent is running. 

  • If the agent is running, Phoenix performs the backup operation.
  • If the agent is not running, Phoenix performs the backup operation based on the type of backup job.
    • For a backup now job, queues the backup request. The backup request is executed after Phoenix agent starts.
    • For a scheduled job, skips the backup request.

Step 3

 

Phoenix determines the type of backup.

If you or another administrator starts a backup, and this is the first backup, Phoenix performs a full backup. For succeeding backups that are triggered by administrators, Phoenix performs an incremental backup.

Step 4

Phoenix agent verifies that the VSS service is running. If the VSS service is not running, Phoenix agent starts the VSS service and instructs VSS to create a snapshot.

Step 5

Phoenix agent estimates the time required for performing the backup.

Step 6

Phoenix agent validates if snapshots are created successfully.

Step 7

 

  1. If snapshots are created successfully, Phoenix agent uses the VSS snapshots as the filesets for data backup to Phoenix Cloud.
  2. If the snapshots are not created successfully, Phoenix agent scans the live files and folders to create filesets for data backup to Phoenix Cloud.

Note: In case of VSS snapshots, Phoenix includes the locked files in the backup. However, in case of live folders and files scan, Phoenix considers locked files as missed files, and attempts to back up such files at the time of the next scheduled backup.

Step 8

After the backup completes, Phoenix agent deletes the created snapshots.

File servers with Linux operating system

This topic explains how data flows during data backup from the File servers with Linux operating system.

File server backup on Linux

Backup workflow

Step Operation

Step 1

A backup request is initiated and forwarded to the Phoenix agent.

Step 2

Phoenix checks if Phoenix agent is running. 

  • If the agent is running, Phoenix performs the backup operation.
  • If the agent is not running, Phoenix performs the backup operation based on the type of backup job.
    • For a backup now job, queues the backup request. The backup request is executed after Phoenix agent starts.
    • For a scheduled job, skips the backup request.

Step 3

Phoenix determines the type of backup. 

If you or another administrator start a backup, and this is the first backup, Phoenix performs a full backup. For succeeding backups that are triggered by administrators, Phoenix performs a full file scan and performs an incremental backup.

Step 4

Phoenix agent performs the full scanning of live files and folders on the File server.

Step 5

Phoenix agent estimates the time required for performing the backup. 

Step 6

Phoenix agent uses the scanned folders and files as the fileset for data transmission. 

Note: Phoenix considers locked files as missed files, and attempts to back up such files at the time of the next scheduled backup.