Disk types in Yandex Managed Service for Valkey™

Yandex Managed Service for Valkey™ allows you to use network and local storage drives for database clusters. Network drives are based on network blocks, which are virtual disks in the Yandex Cloud infrastructure. Local disks are physically located on the database host servers.

When creating a cluster, you can select the following disk types for data storage:

• Network SSDs (network-ssd): Balanced solution. Such disks are slower than local SSD storage, but, unlike local disks, they ensure data integrity if Yandex Cloud hardware fails.

• Non-replicated SSDs (network-ssd-nonreplicated): Network SSDs with enhanced performance achieved by eliminating redundancy.

  This disk type is only available for Intel Cascade Lake and Intel Ice Lake. For a list of host classes and their respective platforms, see Valkey™ host classes.

  The storage size can only be increased in 93 GB increments.

• Ultra high-speed network SSDs with three replicas (network-ssd-io-m3): Network disks with the same performance characteristics as non-replicated ones. This disk type provides redundancy.

  Such disks can be increased in size only in 93 GB increments.

  Access to high-performance SSDs is available on request. Contact support or your account manager.

• Local SSDs (local-ssd): Disks with the best performance.

  The size of such a storage can be increased:

  • For Intel Broadwell and Intel Cascade Lake: Only in 100 GB increments.
  • For Intel Ice Lake: In 368 GB increments only.

  For a list of host classes and their respective platforms, see Valkey™ host classes.

  Note

  For clusters with hosts residing in the ru-central1-d availability zone, local SSD storage is not available if using the Intel Cascade Lake platform.

Selecting the disk type during cluster creationSelecting the disk type during cluster creation

The number of hosts you can create together with a Valkey™ cluster depends on the disk type you select and whether you enabled sharding:

Sharded clusters with the local-ssd disk type and only one host per shard are not considered fault-tolerant. You cannot create such a cluster.

For more information about limits on the number of hosts per cluster or shard, see Quotas and limits.