Disks in a Redis cluster
Only local disks can be used in Redis Managed Database clusters.
A local disk connects directly to the compute server via the PCIe interface using the NVMe protocol. Therefore, a local disk can only be created with a cloud database cluster.
Local disks have no network latency, making them suitable for tasks sensitive to read and write speed metrics.
You can view the performance and bandwidth of disks in different configuration lines in the Performance and bandwidth table. You can view the list of available configurations in the Versions and configurations instructions.
Local disk features
- SSD NVMe disk;
- disk subsystem is configured in RAID 1 for the Dedicated line and in RAID 10 for other lines;
- a Managed Database can have only one local disk;
- cannot be disconnected from a Managed Database and connected to another database;
- you cannot increase only the local disk, you can only change the node configuration;
- is deleted along with all data when a node is deleted.
Performance and throughput
Standard
HighFreq
Dedicated