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 determines the available disk types:
- 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%. This host class is intended for test load, while the minimum recommended host configuration for production solutions is two vCPUs with a guaranteed share of 100%.
-
high-memory: Standard configurations for Valkey™.
A cluster with this configuration type may contain several hosts (from one to current quota limit) per cluster or shard. The minimum number of hosts per cluster depends on the selected disk type.
Note
Clusters with hosts residing in the ru-central1-d availability zone do not support:
- Intel Broadwell
- Local SSD storage if using Intel Cascade Lake
Alert
Starting January 1, 2024, the following host classes are out of service: b1.nano, b1.micro, b1.small, b2.nano, b2.micro, and b2.small. You will not be able to create hosts of these types starting June 20, 2023.
| Host class name | Number of CPUs | RAM, GB | CPU performance | Disk size, GB |
|---|---|---|---|---|
| Intel Broadwell | ||||
| hm1.nano | 2 | 8 | 100% | 16 - 4,096 |
| hm1.micro | 2 | 12 | 100% | 24 - 4,096 |
| hm1.small | 2 | 16 | 100% | 32 - 4,096 |
| hm1.medium | 4 | 24 | 100% | 48 - 4,096 |
| hm1.large | 4 | 32 | 100% | 64 - 4,096 |
| hm1.xlarge | 4 | 48 | 100% | 96 - 4,096 |
| hm1.2xlarge | 4 | 64 | 100% | 128 - 4,096 |
| hm1.3xlarge | 4 | 80 | 100% | 160 - 4,096 |
| hm1.4xlarge | 8 | 96 | 100% | 192 - 4,096 |
| hm1.5xlarge | 8 | 128 | 100% | 256 - 4,096 |
| hm1.6xlarge | 8 | 160 | 100% | 320 - 4,096 |
| hm1.7xlarge | 8 | 192 | 100% | 384 - 4,096 |
| hm1.8xlarge | 8 | 224 | 100% | 448 - 4,096 |
| hm1.9xlarge | 8 | 256 | 100% | 512 - 4,096 |
| Intel Cascade Lake | ||||
| b2.medium | 2 | 4 | 50% | 8 - 32 |
| hm2.nano | 2 | 8 | 100% | 16 - 8,184 |
| hm2.micro | 2 | 12 | 100% | 24 - 8,184 |
| hm2.small | 4 | 16 | 100% | 32 - 8,184 |
| hm2.medium | 4 | 24 | 100% | 48 - 8,184 |
| hm2.large | 4 | 32 | 100% | 64 - 8,184 |
| hm2.xlarge | 4 | 48 | 100% | 96 - 8,184 |
| hm2.96xlarge | 6 | 96 | 100% | 192 - 8,184 |
| hm2.128xlarge | 8 | 128 | 100% | 256 - 8,184 |
| hm2.160xlarge | 10 | 160 | 100% | 320 - 8,184 |
| hm2.192xlarge | 12 | 192 | 100% | 384 - 8,184 |
| hm2.224xlarge | 14 | 224 | 100% | 448 - 8,184 |
| hm2.256xlarge | 16 | 256 | 100% | 512 - 8,184 |
| hm2.320xlarge | 20 | 320 | 100% | 640 - 8,184 |
| hm2.384xlarge | 24 | 384 | 100% | 768 - 8,184 |
| hm2.448xlarge | 28 | 448 | 100% | 896 - 8,184 |
| hm2.512xlarge | 32 | 512 | 100% | 1024 - 8,184 |
| Intel Ice Lake | ||||
| b3-c1-m4 | 2 | 4 | 50% | 8 - 32 |
| hm3-c2-m8 | 2 | 8 | 100% | 16 - 8,184 |
| hm3-c2-m12 | 2 | 12 | 100% | 24 - 8,184 |
| hm3-c4-m16 | 4 | 16 | 100% | 32 - 8,184 |
| hm3-c4-m24 | 4 | 24 | 100% | 48 - 8,184 |
| hm3-c4-m32 | 4 | 32 | 100% | 64 - 8,184 |
| hm3-c4-m48 | 4 | 48 | 100% | 96 - 8,184 |
| hm3-c6-m60 | 6 | 60 | 100% | 120 - 8,184 |
| hm3-c6-m78 | 6 | 78 | 100% | 156 - 8,184 |
| hm3-c6-m96 | 6 | 96 | 100% | 192 - 8,184 |
| hm3-c8-m128 | 8 | 128 | 100% | 256 - 8,184 |
| hm3-c12-m192 | 12 | 192 | 100% | 384 - 8,184 |
| hm3-c14-m224 | 14 | 224 | 100% | 448 - 8,184 |
| hm3-c16-m256 | 16 | 256 | 100% | 512 - 8,184 |
| hm3-c20-m320 | 20 | 320 | 100% | 640 - 8,184 |
| AMD Zen 4 | ||||
| m4a-c2-m16 | 2 | 16 | 100% | 32 - 8,184 |
| m4a-c4-m32 | 4 | 32 | 100% | 64 - 8,184 |
| m4a-c8-m64 | 8 | 64 | 100% | 128 - 8,184 |
| m4a-c16-m128 | 16 | 128 | 100% | 256 - 8,184 |
| m4a-c32-m256 | 32 | 256 | 100% | 512 - 8,184 |
| m4a-c64-m512 | 64 | 512 | 100% | 930 - 8,184 |
| m4a-c96-m768 | 96 | 768 | 100% | 1,536 - 8,184 |
| m4a-c128-m1024 | 128 | 1,024 | 100% | 2,048 - 8,184 |
| m4a-c224-m1792 | 224 | 1,792 | 100% | 3,534 - 8,184 |
| AMD Zen 4 HighFreq | ||||
| m4af-c2-m16 | 2 | 16 | 100% | 32 - 8,184 |
| m4af-c4-m32 | 4 | 32 | 100% | 64 - 8,184 |
| m4af-c8-m64 | 8 | 64 | 100% | 128 - 8,184 |
| m4af-c16-m128 | 16 | 128 | 100% | 256 - 8,184 |
| m4af-c32-m256 | 32 | 256 | 100% | 512 - 8,184 |
| m4af-c48-m384 | 48 | 384 | 100% | 768 - 8,184 |
| m4af-c80-m640 | 80 | 640 | 100% | 1,280 - 8,184 |
| hm4af-c2-m20 | 2 | 20 | 100% | 40 - 8,184 |
| hm4af-c2-m24 | 2 | 24 | 100% | 48 - 8,184 |
| hm4af-c4-m40 | 4 | 40 | 100% | 80 - 8,184 |
| hm4af-c4-m48 | 4 | 48 | 100% | 93 - 8,184 |
| hm4af-c8-m80 | 8 | 80 | 100% | 160 - 8,184 |
| hm4af-c8-m96 | 8 | 96 | 100% | 186 - 8,184 |
| hm4af-c16-m160 | 16 | 160 | 100% | 279 - 8,184 |
| hm4af-c16-m192 | 16 | 192 | 100% | 384 - 8,184 |
| hm4af-c32-m320 | 32 | 320 | 100% | 640 - 8,184 |
| hm4af-c32-m384 | 32 | 384 | 100% | 768 - 8,184 |
| hm4af-c48-m480 | 48 | 480 | 100% | 930 - 8,184 |
| hm4af-c48-m576 | 48 | 576 | 100% | 1,152 - 8,184 |
| hm4af-c80-m800 | 80 | 800 | 100% | 1,600 - 8,184 |
| hm4af-c80-m960 | 80 | 960 | 100% | 1,860 - 8,184 |