Valkey™ host classes
The host class determines the computing power allocated for each host in a cluster. When you change the class for a cluster, all existing hosts change to match it.
Note
The amount of memory allocated to a host also depends on the maxmemory configuration parameter for Valkey™ hosts: the maximum amount of data equals 75% of available memory. For more information, see Memory management.
The host class also determines which disk types are available:
- hm1:
network-ssd,local-ssd. - hm2, hm3:
network-ssd,local-ssd,network-ssd-nonreplicated,network-ssd-io-m3. - b2, b3:
network-ssd.
The storage space available to the host should be at least twice as large as the selected memory size. For more information on Yandex Managed Service for Valkey™ technical and organizational limitations, see Quotas and limits.
Available host classes
Configuration types:
-
burstable: Configurations with a guaranteed vCPU share under 100%. Those host classes are intended for test loads. We do not recommend using them for production solutions.
A cluster with this configuration type can only contain one host per cluster or shard.
-
high-memory: Standard configurations for Valkey™.
A cluster with this configuration type may contain one or more hosts (within the current quota) per cluster or shard. The minimum number of hosts per cluster depends on the selected disk type.
Note
Not available for clusters with hosts residing in the ru-central1-d availability zone:
- Intel Broadwell platform
- Local SSD storage if using Intel Cascade Lake
Alert
Starting January 1, 2024, the following existing host classes are deprecated: b1.nano, b1.micro, b1.small, b2.nano, b2.micro, and b2.small. New hosts of these classes cannot be created since June 20, 2023.
| Host class name | Number of CPUs | RAM, GB | CPU performance | Disk size, GB |
|---|---|---|---|---|
| Intel Broadwell | ||||
| hm1.nano | 2 | 8 | 100% | 16 - 4096 |
| hm1.micro | 2 | 12 | 100% | 24 - 4096 |
| hm1.small | 2 | 16 | 100% | 32 - 4096 |
| hm1.medium | 4 | 24 | 100% | 48 - 4096 |
| hm1.large | 4 | 32 | 100% | 64 - 4096 |
| hm1.xlarge | 4 | 48 | 100% | 96 - 4096 |
| hm1.2xlarge | 4 | 64 | 100% | 128 - 4096 |
| hm1.3xlarge | 4 | 80 | 100% | 160 - 4096 |
| hm1.4xlarge | 8 | 96 | 100% | 192 - 4096 |
| hm1.5xlarge | 8 | 128 | 100% | 256 - 4096 |
| hm1.6xlarge | 8 | 160 | 100% | 320 - 4096 |
| hm1.7xlarge | 8 | 192 | 100% | 384 - 4096 |
| hm1.8xlarge | 8 | 224 | 100% | 448 - 4096 |
| hm1.9xlarge | 8 | 256 | 100% | 512 - 4096 |
| Intel Cascade Lake | ||||
| b2.medium | 2 | 4 | 50% | 8 - 32 |
| hm2.nano | 2 | 8 | 100% | 16 - 8184 |
| hm2.micro | 2 | 12 | 100% | 24 - 8184 |
| hm2.small | 4 | 16 | 100% | 32 - 8184 |
| hm2.medium | 4 | 24 | 100% | 48 - 8184 |
| hm2.large | 4 | 32 | 100% | 64 - 8184 |
| hm2.xlarge | 4 | 48 | 100% | 96 - 8184 |
| hm2.96xlarge | 6 | 96 | 100% | 192 - 8184 |
| hm2.128xlarge | 8 | 128 | 100% | 256 - 8184 |
| hm2.160xlarge | 10 | 160 | 100% | 320 - 8184 |
| hm2.192xlarge | 12 | 192 | 100% | 384 - 8184 |
| hm2.224xlarge | 14 | 224 | 100% | 448 - 8184 |
| hm2.256xlarge | 16 | 256 | 100% | 512 - 8184 |
| hm2.320xlarge | 20 | 320 | 100% | 640 - 8184 |
| hm2.384xlarge | 24 | 384 | 100% | 768 - 8184 |
| hm2.448xlarge | 28 | 448 | 100% | 896 - 8184 |
| hm2.512xlarge | 32 | 512 | 100% | 1024 - 8184 |
| Intel Ice Lake | ||||
| b3-c1-m4 | 2 | 4 | 50% | 8 - 32 |
| hm3-c2-m8 | 2 | 8 | 100% | 16 - 8184 |
| hm3-c2-m12 | 2 | 12 | 100% | 24 - 8184 |
| hm3-c4-m16 | 4 | 16 | 100% | 32 - 8184 |
| hm3-c4-m24 | 4 | 24 | 100% | 48 - 8184 |
| hm3-c4-m32 | 4 | 32 | 100% | 64 - 8184 |
| hm3-c4-m48 | 4 | 48 | 100% | 96 - 8184 |
| hm3-c6-m60 | 6 | 60 | 100% | 120 - 8184 |
| hm3-c6-m78 | 6 | 78 | 100% | 156 - 8184 |
| hm3-c6-m96 | 6 | 96 | 100% | 192 - 8184 |
| hm3-c8-m128 | 8 | 128 | 100% | 256 - 8184 |
| hm3-c12-m192 | 12 | 192 | 100% | 384 - 8184 |
| hm3-c14-m224 | 14 | 224 | 100% | 448 - 8184 |
| hm3-c16-m256 | 16 | 256 | 100% | 512 - 8184 |
| hm3-c20-m320 | 20 | 320 | 100% | 640 - 8184 |