# Disaster Recovery
Data Stream as a stand alone product is not disaster tolerant but works in conjunction with industry leading products to form a disaster recovery process.
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Disasters are never a planned event but planning for one is critical to minimizing impact.
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## Microsoft SQL Agent
Data Stream recommends the use of [Ola Hallengren Scripts](https://ola.hallengren.com/).
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Don't forget to set a backup schedule for each Microsft SQL Agent Job. \[[Reference](https://docs.microsoft.com/en-us/sql/ssms/agent/schedule-a-job?view=sql-server-2017)]
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### Ola Hallengren Scripts
Download the scripts [here](https://ola.hallengren.com/scripts/MaintenanceSolution.sql).
## Load Balancing Fail-over
### Manual Fail-over
When the mirrored database is synchronized, the database owner or system administrator can initiate manual fail-over to the secondary server.
```sql
USE master;
GO
ALTER DATABASE [DataStream] SET PARTNER FAILOVER;
```
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Validation of mirroring status is critical to a successful fail-over. \[[Reference](https://support.getdatastream.com/support/load-balancing#validation)]
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### Automatic Fail-over
Automatic fail-over occurs when the fast startup is disabled and computer is properly shutdown.
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Automatic fail-over will not occur in a loss of power disaster.
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#### Disabling Fast Startup
