Overview
Valex Block Storage supports multi-attach functionality, allowing a single volume to be attached to multiple virtual machines simultaneously. This feature is particularly useful for clustered applications and shared file systems.
Benefits of Multi-Attach
- Shared Data Access: Multiple VMs can access the same volume, enabling collaborative applications.
- High Availability: Reduces single points of failure by providing multiple access paths to the same data.
- Simplified Management: Maintain one central data repository for several instances.
How to Use Multi-Attach
- Volume Creation:
All volumes already support Multi-Attach. - Attach to VMs:
Select the volume and attach it to the desired virtual machines. - Configuration:
Ensure that your operating systems are configured for concurrent access, particularly for file systems that support shared writes.
Best Practices
- Concurrency Controls: Use file systems or applications that manage concurrent access safely.
- Monitoring: Track volume performance to identify potential bottlenecks when accessed by multiple VMs.
- Documentation: Keep a record of which volumes are multi-attached and the VMs that are using them.
