diff --git a/DisasterManagement.md b/DisasterManagement.md
index d11dadc..5b301ec 100644
--- a/DisasterManagement.md
+++ b/DisasterManagement.md
@@ -157,3 +157,57 @@ worstcase: Restore whole data disk, which is mounted into /storage, and all of i
One of the common backup and restore configurations is an environment with two SQL Servers (SQLServer-1 and SQLServer-2), two SQL Server instances (SQLInstance-1 and SQLInstance-2), and one database named SQLDB-1 which will be backed up, transferred, and restored to SQLServer-2.
+
+
+## Create DB backup
+
+To create a backup of a research database using pg_dump, you can follow these steps:
+
+1. Open a terminal or command prompt and navigate to the directory where you want to store the backup file.
+2. Type the following command to create a backup of the database:
+
+ ```bash
+ pg_dump -U -E UTF8 -F c -b -v -f .backup
+ ```
+
+ Here, replace **username** with the username of the database, **backup_file_name** with the name you want to give to the backup file, and **database_name** with the name of the research database you want to backup.
+
+ -E is for the encoding, e.g. UTF8
+ -F c specifies the format of the backup as a custom format, which is more flexible than plain SQL text format. \
+ -b includes the backup of the objects such as functions and procedures. \
+ -v enables verbose mode which will display the progress of the backup process. \
+
+ Usually the timestamp is integrated into the backup_file_name:
+
+ ```bash
+ pg_dump -U -F c -b -v -f _$(date +"%Y%m%d_%H%M%S").backup
+ e.g.:
+ pg_dump -U tethys_user -E UTF8 -F c -b -v -f /home/user/backups/tethys_$(date +"%Y%m%d").backup tethys
+ ```
+
+3. When you run the command, you will be prompted to enter the password for the database user. Enter the password and press enter.
+4. The pg_dump command will start creating the backup file. Wait until it completes, which may take several minutes depending on the size of the database.
+
+5. Once the backup is complete, you will see a message indicating that the backup has been created successfully.
+
+It's important to note that the backup file may contain sensitive information, so it should be stored securely and only accessible to authorized personnel.
+
+
+## Restore DB on second DB-Server
+
+To restore a backup of the research database using pg_restore, you can follow these steps:
+
+1. Open a terminal or command prompt and navigate to the directory where the backup file is located.
+2. Type the following command to restore the backup to the database:
+ ```bash
+ pg_restore -U -d
+ ```
+ Here, replace with the username of the database, with the name of the research database you want to restore the backup to, and with the name of the backup file.
+3. When you run the command, you will be prompted to enter the password for the database user. Enter the password and press enter.
+4. The pg_restore command will start restoring the backup file to the database. Wait until it completes, which may take several minutes depending on the size of the database.
+
+e.g.
+```
+pg_restore -h localhost -p 5432 -U tethys_user -d tethys_db -v /tmp/tethys_20230404.backup
+```
+Once the restore process is complete, the research database should be fully recovered with all its data and objects.
diff --git a/db_backup.drawio.svg b/db_backup.drawio.svg
index a1e9110..7c20c60 100644
--- a/db_backup.drawio.svg
+++ b/db_backup.drawio.svg
@@ -1,24 +1,20 @@
-