# Valkey Details – DigitalOcean Documentation > Features, plans and pricing, availability, limits, known issues, and more. - [Valkey Features](https://docs.digitalocean.com/products/databases/valkey/details/features/index.html.md): A summary of cluster features and Valkey-specific features, like database metrics and eviction policies. - [Valkey Pricing](https://docs.digitalocean.com/products/databases/valkey/details/pricing/index.html.md): Pricing for Valkey database cluster plans, both single node and high availability. - [Valkey Availability](https://docs.digitalocean.com/products/databases/valkey/details/availability/index.html.md): Regional datacenter availability for Valkey. - [Valkey Limits](https://docs.digitalocean.com/products/databases/valkey/details/limits/index.html.md): Limits and known issues for Valkey. - [Types of Cluster Notifications](https://docs.digitalocean.com/products/databases/valkey/details/notifications/index.html.md): Common alerts you might receive about your database cluster's performance. - [Memory Usage for Valkey Database Clusters](https://docs.digitalocean.com/products/databases/valkey/details/memory-usage/index.html.md): Valkey database clusters reserve some memory for overhead to handle cluster operations, like backups and replication. Optimize Valkey memory usage with cluster-level settings, like eviction policies, and application-level settings, like minimizing writes.