Manage backup

Backup is managed at the cluster level and is performed without stopping the cluster.

View backup list

You can view the list of backups created in the MemStore for the current project.

1. Go to the KakaoCloud Console > Data Store > MemStore.

2. Click the Backup menu, then select either the Manual backup or Automated backup tab.

   Manual backup tab

   Item	Description
   Name	Name of the backup
   Status	Check backup status - See Backup status values for details
   Cluster name	Name of the cluster associated with the backup
   Engine version	Redis OSS engine version of the source cluster
   Cluster mode	Whether cluster mode is enabled. Restoration is only possible to clusters with the same mode
   Backup file size	Size of the backup file
   Cache size	Size of the backup cache
   Backup start time	Time when the backup started
   [⋮] button	Restore, Copy, Export, Delete

   Automated backup tab

   Item	Description
   Name	Name of the backup
   Status	Check backup status - See Backup status values for details
   Cluster name	Name of the cluster associated with the backup
   Engine version	Redis OSS engine version of the source cluster
   Cluster mode	Whether cluster mode is enabled. Restoration is only possible to clusters with the same mode
   Backup file size	Size of the backup file
   Cache size	Size of the backup cache
   Auto backup retention	Retention period set for automatic backup of the cluster
   Backup expiration time	Time when backup expires and is deleted based on retention settings
   Backup start time	Time when the backup started
   [⋮] button	Restore, Copy, Export, Delete

Configure automated backup

Automated backups in the MemStore service are performed once a day at a specified time. You can configure automated backup either during cluster creation or by editing the cluster settings later. Automated backups can only be enabled when the cluster has at least two healthy nodes. If you modify the retention period or start time while automated backup is enabled, the new settings will apply to backups created after the change.

During cluster creation

1. Go to the KakaoCloud Console > Data Store > MemStore.
2. Click the [Create cluster] button.
3. Enter the automated backup settings, then click [Create].

Item	Category	Description
Automated backup	Auto backup option	Enable or disable daily automated backup
	Backup retention period	Set backup retention period (1–35 days)
	Backup start time	Time when backup starts; begins within 15 minutes of selected time

While managing cluster

1. Go to the KakaoCloud Console and select the MemStore menu.
2. In the Cluster menu, click the [⋮] button of the target cluster and select Configure automated backup.
3. Set the required values for automated backup and click [Confirm].

Item	Category	Description
Automated backup	Auto backup option	Enable or disable daily automated backup
	Backup retention period	Set backup retention period (1–35 days)
	Backup start time	Time when backup starts; begins within 15 minutes of selected time

Create manual backup

You can manually create backups in the MemStore service.

1. Go to the KakaoCloud Console > Data Store > MemStore.
2. In the Cluster menu, select the cluster to back up.
3. Click the Backup menu, then click the [Create backup] button.
4. In the popup window, enter the required information and click [Create].
5. Check the list of backup files in the Backup menu.

Restore

To use the restore feature in MemStore, a backup must exist. You can create a new cluster from a backup.

Note

You can only restore backups using the same cluster mode as the selected backup, and the Redis engine version must be the same or higher than that of the backup.

caution

If the cache size of the backup source exceeds 60% of the memory of the target cluster flavor, the restore may fail.

Restore from Cluster details

1. Go to the KakaoCloud Console and select the MemStore menu.

2. In the Cluster menu, select the cluster for which you want to use a backup.

3. In the Backup tab, click the [⋮] button next to the desired backup and choose Restore.

4. Fill in the required information in the Restore screen and click [Create].

   When Using Cluster Mode

   Category	Item	Description
   Restore Source Info		Information about the backup source file used for restoration. A new cluster will be created based on this info.
   Cluster Mode Setting		Whether to use cluster mode
   Basic Settings	Cluster Name	Name of the cluster
   	Description (Optional)	Description for the cluster, up to 100 characters
   Redis Compatibility Settings	Engine Version	Redis OSS engine version to be used for the nodes
   	Port	Port for Redis access - Default: 6379 - Range: 2000 ~ 50000
   User Authentication		Whether to enable user authentication Disabled: Access with default account Enabled: Access with entered ID and password
   User Account Settings	ID	Required if authentication is enabled * Reserved IDs are not allowed
   	Password	- Format: 8 ~ 16 characters
   Data Encryption (TLS)		Whether to enable encrypted connections Disabled: Plain connection Enabled: Supports TLS 1.2 - ca.crt file can be downloaded from cluster details after creation
   Parameter Group		Choose a parameter group compatible with the selected engine version and cluster mode
   Shard Settings	Number of Shards	Number of shards to create - Cannot be modified for cluster mode
   	Nodes per Shard	Number of nodes per shard - Min 2, Max 5
   Node Type		Choose a node type with sufficient memory for performance - See Node Types
   Network Settings	VPC	Choose from your pre-created VPCs
   	Subnet	Choose from your pre-created subnets - Multiple selection allowed
   	Security Group	Create or select a security group - Multiple selection allowed
   Shard Placement		Select subnets for each node within a shard
   Automatic Backup	Backup Option	Whether to enable automatic daily backup - Requires at least 2 nodes
   	Backup Retention Period	Between 1 to 35 days
   	Backup Start Time	Backup starts within 15 minutes of selected time

   When Not Using Cluster Mode

   Category	Item	Description
   Restore Source Info		Information about the backup source file used for restoration. A new cluster will be created based on this info.
   Cluster Mode Setting		Whether to use cluster mode
   Basic Settings	Cluster Name	Name of the cluster - Cannot duplicate within the same project
   	Description (Optional)	Description for the cluster, up to 100 characters
   Redis Compatibility Settings	Engine Version	Redis OSS engine version to be used for the nodes
   	Port	Port for Redis access - Default: 6379 - Range: 2000 ~ 50000
   User Authentication		Whether to enable user authentication Disabled: Access with default account Enabled: Access with entered ID and password * Not supported in Redis OSS 5 or lower
   User Account Settings	ID	Required if authentication is enabled - 1–32 lowercase letters or _ only * Reserved IDs not allowed
   	Password	- 8 to 16 characters - No Korean, whitespace, or special characters /, ', ", @
   Data Encryption (TLS)		Whether to enable encrypted connections Disabled: Plain connection Enabled: Supports TLS 1.2 - ca.crt file available after creation * Not supported in Redis OSS 5 or lower
   Parameter Group		Choose a parameter group compatible with the selected engine version and mode
   Node Count	Number of Nodes	Desired number of nodes - With HA: 2–6 * 1 Primary, 1–5 Replicas - Without HA: 1–6 * 1 Primary, 0–5 Replicas Example: To create 1 Primary and 2 Replicas, enter 3
   	High Availability Setting	Whether to use high availability for automatic failover
   Node Type		Choose a node type with sufficient memory for performance - See Node Types
   Network Settings	VPC	Choose from your pre-created VPCs
   	Subnet	Choose from your pre-created subnets
   	Security Group	Create or select a security group - Multiple selection allowed
   Node Placement		Choose subnets for each role-based node
   Automatic Backup	Backup Option	Whether to enable automatic daily backup
   	Backup Retention Period	Between 1 to 35 days
   	Backup Start Time	Backup starts within 15 minutes of selected time

Restore from cluster creation

For more details, refer to Cluster Creation.

Copy

1. Go to the KakaoCloud Console and navigate to the MemStore menu.
2. Select the backup you want to copy from the Backup tab.
3. Click the Copy button.
4. In the Copy Backup popup, enter the new backup name and click Confirm.

Export

1. Go to the KakaoCloud Console and navigate to the MemStore menu.

2. From the Backup tab, select the backup you want to export to Object Storage.

3. Click the Export button.

   Item	Category	Description
   Selected backup name	–	Name of the selected backup
   Export backup name	–	Name of the backup to be exported to Object Storage - If using cluster mode, append the shard number to the name to create one file per shard at the full Object Storage path
   Object Storage	S3 Connection	Whether to use S3 - If not used, the path format should be swifta://. S3 support will be provided in the future
   	Bucket name	The bucket name created in Object Storage
   	Path (optional)	Directory within the bucket - Path must be less than or equal to 396 bytes
   	Full path	Combined bucket and path where the backup will be stored

4. In the Export popup, enter the backup name and destination path, then click Confirm.

Delete backup

You can delete automatic or manual backups that are no longer needed.

1. Go to the KakaoCloud Console and navigate to the MemStore menu.
2. From the Cluster tab, select the cluster containing the backup you want to delete.
3. In the Backup tab, click the [⋮] button for the backup, then select Delete backup.
4. In the Delete Backup popup, enter the required information and click Delete.