aws-rds

compressing mssql backups#

It’s possible to compress mssql backups in rds by turning compression on/off via rdsadmin commands;

bash
exec rdsadmin..rds_set_configuration 'S3 backup compression', 'true'; exec rdsadmin..rds_set_configuration 'S3 backup compression', 'false';

Note that it’s possible to do this when the server instance is sqlexpress, however in that case when actually performing the backup it will fail due to sqlexpress not supporting compressed backups.

mssql native backup#

Backup

perl
exec msdb.dbo.rds_backup_database @source_db_name='database_name', @s3_arn_to_backup_to='arn:aws:s3:::bucket_name/file_name_and_extension', @overwrite_S3_backup_file=1, @type='differential';

Restore

perl
exec msdb.dbo.rds_restore_database @restore_db_name='database_name', @s3_arn_to_restore_from='arn:aws:s3:::bucket_name/file_name_and_extension';

Status

perl
exec msdb.dbo.rds_task_status @db_name='database_name';

Cancel

perl
exec msdb.dbo.rds_cancel_task @task_id=1234;

More information#

https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/SQLServer.Procedural.Importing.html