Application-Aware Processing and Guest OS Interaction Flashcards
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Read the first 7 Application-Aware Processing and Guest OS Interaction flashcards as text
What is the primary purpose of application-aware processing in Veeam Backup & Replication?
Answer: To create application-consistent backups by coordinating with VSS writers inside the guest OS
Application-aware processing coordinates with Microsoft VSS writers inside the guest OS to quiesce application data and ensure application-consistent backups are created.
Which technology does Veeam primarily leverage for application-aware processing on Windows-based VMs?
Answer: Microsoft Volume Shadow Copy Service (VSS)
Veeam uses Microsoft VSS to coordinate with application VSS writers to quiesce applications and ensure consistent, recoverable backups on Windows VMs.
What credentials are required for Veeam to perform application-aware processing on a guest VM?
Answer: Guest OS credentials with local administrator privileges on the VM
Veeam requires guest OS credentials with local administrator privileges to inject its runtime components into the guest OS and coordinate VSS processing.
What is the key difference between a crash-consistent backup and an application-consistent backup?
Answer: Crash-consistent backups capture data as-is without quiescing apps; application-consistent backups quiesce apps and flush in-memory data to disk
Crash-consistent backups capture a point-in-time snapshot without quiescing applications (similar to recovering from a crash), while application-consistent backups use VSS to flush in-memory data to disk for a clean, recoverable state.
What does Veeam do with SQL Server transaction logs when 'Truncate logs' is selected in application-aware processing settings?
Answer: Marks committed transactions in the log as available for overwrite after the backup completes
When log truncation is enabled, Veeam signals SQL Server to mark committed transactions in the transaction log as reusable after backup, preventing log file growth without altering the recovery model.
What is the Guest Interaction Proxy (GIP) in Veeam Backup & Replication?
Answer: A component that acts as an intermediary to connect to guest VMs for application-aware processing and indexing tasks
The Guest Interaction Proxy (GIP) is a Veeam component that connects to guest VMs on behalf of the backup server to perform application-aware processing, guest OS indexing, and script execution.
Which job setting causes a Veeam backup job to fail rather than fall back to a crash-consistent backup when VSS processing encounters an error?
Answer: Require successful application-aware processing
The 'Require successful application-aware processing' option causes the backup job to fail if VSS processing fails, preventing a crash-consistent backup from being silently created when application consistency is mandatory.