Do I Need to Stop the Server Before Performing a Backup?
No. You can back up servers that are in use. When a server is running, data is written onto disks on the server, and some newly generated data is stored in the server memory as cached data. During a backup task, the data in the memory will not be automatically written onto disks, resulting in data inconsistency between disks and their backups.
To ensure data integrity, back up the server during off-peak hours when no write operation is performed on the disks. For applications that require strict consistency, such as databases and email systems, you are advised to enable application-consistent backup.
Backup FAQs
- Do I Need to Stop the Server Before Performing a Backup?
- Can I Back Up a Server Deployed with Databases?
- How Can I Distinguish Automatic Backups From Manual Backups?
- Can I Choose to Back Up Only Some Partitions of a Disk?
- Does CBR Support Cross-Region Backup?
- Can I Back Up Two Disks to One Target Disk?
- How Do I Replicate a Disk to the Same AZ in a Region as the Source Disk?
- Will the Server Performance Be Affected If I Delete Its Backups?
- Can I Use Its Backup for Restoration After a Resource Is Deleted?
- How Many Backups Can I Create for a Resource?
- Can I Use an Incremental Backup to Restore Data After a Full Backup Is Deleted?
- Can I Stop an Ongoing Backup Task?
- How Do I Reduce the Vault Space Occupied by Backups?
- How Do I View the Size of Each Backup?
- How Do I View My Backup Data?
- How Long Will My Backups Be Kept?
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