Must I Stop the ECS Before Backing Up EVS Disks on an ECS Using VBS?

VBS can back up EVS disks that are in use. When an ECS is running properly, data is written onto EVS disks of the ECS, and some newly generated data is stored in the ECS memory as cached data. During EVS disk backup, the data in the memory will not be automatically written onto EVS disks, resulting in data inconsistency between EVS disks and their backups.

To ensure data integrity, back up EVS disks during off-peak hours when no data write operations are being performed on the EVS disks. Alternatively, suspend all data write operations and stop the application systems before initiating a backup job. For an extreme requirement for data integrity, stop the ECS (for cached data to be written into EVS disks) and start an offline backup job.

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