Overview

Service Overview

Block Storage is a high-performance storage that stores data in block units arranged in a fixed size and order.
Suitable for large-scale, high-performance requirements such as databases and mail servers, and users can directly allocate volumes on the server for use.

Features

• Large volume provision: You can create volumes up to 16 TB in size.
• Full SSD-based high performance: Provides high durability and availability based on redundant controllers and Disk Array RAID. Since a Full SSD disk is provided by default, it is suitable for high-speed data processing tasks such as database workloads.
• Snapshot Backup: Data that has been modified or deleted can be recovered using the image snapshot feature. The user selects a snapshot created at the desired point in time from the list and performs the recovery.
• Replication: Creates an identical replica volume at a different location, and users can set the data replication schedule. If the original volume becomes unavailable due to failures or disasters, services can be provided through the replica volume.

Configuration diagram

Provided features

Block Storage provides the following features.

• Volume Name: Users can set or edit the name for each volume.
• Capacity: Volumes can be created with capacities ranging from a minimum of 1 GB up to a maximum of 16 TB.
• Connection Server : You can select Bare Metal Server or Multi Node GPU Cluster to connect or disconnect.
  • Multi-Server Connection (Multi Attach): Supports up to 5 server connections, with no limit on the number of volumes that can be attached to a Bare Metal Server.
• Encryption: All volumes are encrypted with the AES-256 algorithm by default, regardless of disk type.
• Snapshot: Using the image snapshot feature, you can create a snapshot at a specific point in time or generate snapshots at regular intervals.
  • Capacity: the capacity of the snapshot storage space
  • Schedule: Snapshot auto-creation interval
  • Recovery: Recover the original volume to the latest snapshot, or select a snapshot at a specific point in time to create a recovery volume
  • Recovery copy a separate volume created with the same capacity as the original (additional cost incurred)
• Replication: It replicates the volume to another location, and the user can set the replication schedule.
  • A replicated volume can also serve as the primary using the snapshot feature in the event of a disaster.
• Volume Group: Set up to 16 Block Storage volumes as a group. Snapshots and replication can be configured at the group level.
• Monitoring: You can view monitoring information such as IOPS, latency, and throughput through the Cloud Monitoring service.

Component

You can create a volume by entering the size and selecting the disk type according to the user’s service scale and performance requirements.
When using the snapshot feature, you can restore data to the desired point in time.

Volume

A volume (Volume) is the basic creation unit of the Block Storage service and is used as data storage space. Users create a volume by setting the name, capacity, disk type, snapshot, etc., and then connect it to a Bare Metal Server for use.
The volume name generation rules are as follows.

• It must start with an English letter and can be set using English letters, numbers, and special characters (-) within 3 to 28 characters.

Snapshot

Snapshot is an image backup of a volume at a specific point in time. Users can view the snapshot name and creation time in the snapshot list to select the snapshot they want to restore, and can recover data that was modified or deleted using that snapshot.
The following are considerations when using snapshots.

Volume Group

A Volume Group is a group-level management feature that allows users who configure databases and applications across two or more volumes to create consistent-point snapshots and replications. Users can create a Volume Group by selecting a name and a target Block Storage.

Preceding Service

This is a list of services that must be pre-configured before creating the service. For details, refer to the guide provided for each service and prepare in advance.