Skip to main content

Cloud Disk

Overview

Cloud Disk provides persistent, block-level storage for cloud servers. Data is automatically stored in multi-copy redundant mode within the availability zone, eliminating single points of failure and delivering data reliability of up to 99.9999999%. With support for flexible capacity adjustments, multiple disk types, and seamless mounting across cloud servers in the same availability zone, Cloud Disk is designed to meet the storage performance requirements of both stable, latency-sensitive workloads and elastic data needs — at a low cost based only on configured resources.

Service Overview

1. High Reliability Storage
  • Multi-Copy Redundancy: Data is automatically replicated within the availability zone, protecting against single-point failures
  • 99.9999999% Data Reliability: Enterprise-grade durability ensures your data remains intact and accessible
  • Persistent Storage: Data persists independently of the cloud server lifecycle — survive instance stops, restarts, and replacements
2. Flexible Disk Management
  • Mount / Unmount Support: Attach or detach disks to cloud servers within the same availability zone with minimal disruption
  • Elastic Capacity Adjustment: Expand storage capacity within minutes to keep pace with growing data requirements
  • Multiple Disk Types: Choose from available disk specifications to match your workload's performance and cost profile
3. Consistent Performance
  • Low Latency I/O: Optimized for stable, predictable latency across read and write operations
  • Workload-Ready: Suitable for databases, application data, logs, and other I/O-intensive workloads requiring consistent throughput
  • Zone-Level Availability: Storage resources are scoped to the availability zone for low-latency access from attached instances
4. Simple and Cost-Efficient
  • Pay for What You Configure: Billing is based on provisioned capacity, with no charges for unused overhead
  • Quick Provisioning: Disk instances are ready in minutes, enabling fast setup for new workloads or capacity expansions
  • Straightforward Management: Mount, resize, and manage disks directly from the console without complex configuration