Allocating resources

By default, vbr allows a single rsync connection (for Linux file systems), 10 concurrent threads (for cloud storage connections), and unlimited bandwidth for any backup or restore operation.

By default, vbr allows a single rsync connection (for Linux file systems), 10 concurrent threads (for cloud storage connections), and unlimited bandwidth for any backup or restore operation. You can change these values in your configuration file. See vbr configuration file reference for details about these parameters.

Connections

You might want to increase the number of concurrent connections. If you have many Vertica files, more connections can provide a significant performance boost as each connection increases the number of concurrent file transfers.

For more information, refer to the following parameters in [transmission]:

  • total_bwlimit_backup

  • total_bwlimit_restore

  • concurrency_backup

  • concurrency_restore

and the following parameters in [CloudStorage]:

  • cloud_storage_concurrency_backup

  • cloud_storage_concurrency_restore

Bandwidth limits

You can limit network bandwidth use through the total_bwlimit_backup and total_bwlimit_restore data transmission parameters. For more information, refer to [transmission].