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* Add changelog and docs for v1.5 release

Signed-off-by: Nolan Brubaker <brubakern@vmware.com>

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---
title: "Disaster recovery"
layout: docs
---
*Using Schedules and Read-Only Backup Storage Locations*
If you periodically back up your cluster's resources, you are able to return to a previous state in case of some unexpected mishap, such as a service outage. Doing so with Velero looks like the following:
1. After you first run the Velero server on your cluster, set up a daily backup (replacing `<SCHEDULE NAME>` in the command as desired):
```
velero schedule create <SCHEDULE NAME> --schedule "0 7 * * *"
```
This creates a Backup object with the name `<SCHEDULE NAME>-<TIMESTAMP>`. The default backup retention period, expressed as TTL (time to live), is 30 days (720 hours); you can use the `--ttl <DURATION>` flag to change this as necessary. See [how velero works][1] for more information about backup expiry.
1. A disaster happens and you need to recreate your resources.
1. Update your backup storage location to read-only mode (this prevents backup objects from being created or deleted in the backup storage location during the restore process):
```bash
kubectl patch backupstoragelocation <STORAGE LOCATION NAME> \
--namespace velero \
--type merge \
--patch '{"spec":{"accessMode":"ReadOnly"}}'
```
1. Create a restore with your most recent Velero Backup:
```
velero restore create --from-backup <SCHEDULE NAME>-<TIMESTAMP>
```
1. When ready, revert your backup storage location to read-write mode:
```bash
kubectl patch backupstoragelocation <STORAGE LOCATION NAME> \
--namespace velero \
--type merge \
--patch '{"spec":{"accessMode":"ReadWrite"}}'
```
[1]: how-velero-works.md#set-a-backup-to-expire