Overview

Service Overview

Block Storage is a high-performance storage that stores data in block units arranged in a certain size and array.
It is suitable for large-capacity, high-performance requirements such as databases and mail servers, and users can directly assign volumes to servers for use.

Key Features

• Large-capacity Volume Provision: Volumes for OS configuration are created with at least the minimum capacity per image and can be expanded up to 12TB, and volumes for data storage other than OS can be created and expanded with capacities from a minimum of 8GB to a maximum of 12TB. Capacity expansion is performed stably in an online state.
• High Performance Based on Full SSD: Provides high durability and availability based on redundant Controllers and Disk Array Raid. Since Full SSD disks are provided by default, it is suitable for high-speed data processing tasks such as database workloads.
• Snapshot Backup: Recovery of changed and deleted data is possible through the image snapshot function. Users can select a snapshot created at the desired time point from the list to perform recovery.

Service Architecture

Provided Features

Block Storage provides the following features:

• Volume Name: Users can set or modify names for each volume.
• Capacity: Volumes can be created with capacities from a minimum of 8GB to a maximum of 12TB, and can be expanded during use. OS basic volumes can be created with at least the minimum capacity per image.
• Connected Server: You can connect or disconnect by selecting a Virtual Server.
  • Multi Attach: Connects to 2 or more servers, no limit on the number of connected servers per volume, and Virtual Server can connect up to 26 volumes
• Encryption: AES-256 algorithm encryption is applied by default to all volumes of Block Storage, and when the volume is HDD/SSD_KMS disk type, it additionally provides transfer encryption between the instance and the Block Storage section connected to the instance.
• Snapshot: Recovery of changed and deleted data is possible through the image snapshot function. Users select a snapshot created at the desired time point from the list to recover.
• Volume Transfer: You can transfer volumes to another Account through the volume transfer function.
• Monitoring: You can check monitoring information such as IOPS, Latency, Throughput, etc. through the Cloud Monitoring service.

Components

You can create a volume by entering capacity according to your service scale and performance requirements and selecting a disk type. When using the snapshot function, you can recover data to the desired time point.

Volume

Volume is the basic creation unit of the Block Storage service and is used as data storage space. Users create a volume by selecting a name, capacity, and disk type, then connect it to a Virtual Server for use.
The volume name creation rules are as follows:

Snapshot

Snapshot is an image backup of a volume at a specific point in time. Users can check the snapshot name and creation date/time from the snapshot list and select the snapshot they want to recover, and can recover changed or deleted data through that snapshot.
Notes for using snapshots are as follows:

Prerequisite Services

This is a list of services that must be pre-configured before creating this service. Please prepare in advance by referring to the guides provided for each service.