Glossary¶
General Terms¶
- Block Storage
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A storage service providing additional disk volumes that can be attached to Cloud VPS servers. Data is stored independently of the server and can be moved between different servers within the same project and region.
- Volume
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A block storage device that acts as an additional disk for a Cloud VPS server. Volumes can be attached and detached dynamically without restarting the server and store data independently of the server lifecycle.
- NVMe
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Non-Volatile Memory Express — a modern protocol for accessing high-speed SSD drives. NVMe drives deliver significantly faster read and write speeds compared to traditional SATA SSDs and HDD drives. Recommended for performance-critical workloads such as databases and applications.
- HDD
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Hard Disk Drive — a traditional magnetic storage device. HDD drives offer larger storage capacities at a lower cost compared to NVMe drives. Suitable for bulk data storage, archival purposes, and workloads that do not require high I/O performance.
- Region
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The physical location of the Delta Cloud data center from which the service is provided. Each region is independent, and data is physically stored in the selected region. A volume must be in the same region as the Cloud VPS server it will be attached to. The available region is
eu-sof-1(Sofia, Bulgaria). - Plan
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The storage configuration of a volume, defined by the disk type (NVMe or HDD) and storage capacity (from 50 GB to 1 TB). The plan determines the performance characteristics and pricing of the volume.
Snapshots¶
- Snapshot
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A point-in-time copy of an entire Block Storage volume at the block level, capturing its complete state — all data, file systems, and partition structures. Snapshots are kept for 48 hours and are then automatically deleted. You can maintain one manual snapshot at a time. For details, see Snapshots.
Volume Operations¶
- Mount / Attach
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The process of connecting a Block Storage volume to a Cloud VPS server, making it available as a disk device in the operating system. A volume can be attached to one server at a time.
- Unmount / Detach
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The process of disconnecting a Block Storage volume from a Cloud VPS server. After detaching, the volume becomes available to be attached to a different server. Data on the volume is preserved during detachment.
Additional Information¶
For more information on how these terms are used in the context of the service, see the relevant sections in the documentation.
If you have questions or need further clarification, please contact our support team.