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Added footnote link to persistent storage row & updated footnote order
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rrelledge committed Jan 22, 2025
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Expand Up @@ -27,8 +27,8 @@ We recommend these hardware requirements for production systems or for developme
| Cores<sup>[2](#table-note-2)</sup> per node | Redis Enterprise Software is based on a multi-tenant architecture and can run multiple Redis processes (or shards) on the same core without significant performance degradation. | 2 cores | >=8 cores |
| RAM<sup>[3](#table-note-3)</sup> per node | Defining your RAM size must be part of the capacity planning for your Redis usage. | 8GB | >=32GB |
| Ephemeral storage | Used for storing [replication files (RDB format) and cluster log files]({{< relref "/operate/rs/installing-upgrading/install/plan-deployment/persistent-ephemeral-storage" >}}). | RAM x 2 | >= RAM x 4 |
| Persistent storage | Used for storing [snapshot (RDB format) and AOF files]({{< relref "/operate/rs/installing-upgrading/install/plan-deployment/persistent-ephemeral-storage" >}}) over a persistent storage media, such as AWS Elastic Block Storage (EBS) or Azure Data Disk. | RAM x 3 | In-memory >= RAM x 4 (except for [extreme 'write' scenarios]({{< relref "/operate/rs/clusters/optimize/disk-sizing-heavy-write-scenarios" >}}))<br /><br /> [Auto Tiering]({{< relref "/operate/rs/databases/auto-tiering/" >}}) >= (RAM + Flash) x 4. |
| Network<sup>[4](#table-note-4)</sup> | We recommend using multiple NICs per node where each NIC is >1Gbps, but Redis Enterprise Software can also run over a single 1Gbps interface network used for processing application requests, inter-cluster communication, and storage access. | 1G | >=10G |
| Persistent storage<sup>[4](#table-note-4)</sup> | Used for storing [snapshot (RDB format) and AOF files]({{< relref "/operate/rs/installing-upgrading/install/plan-deployment/persistent-ephemeral-storage" >}}) over a persistent storage media, such as AWS Elastic Block Storage (EBS) or Azure Data Disk. | RAM x 3 | In-memory >= RAM x 4 (except for [extreme 'write' scenarios]({{< relref "/operate/rs/clusters/optimize/disk-sizing-heavy-write-scenarios" >}}))<br /><br /> [Auto Tiering]({{< relref "/operate/rs/databases/auto-tiering/" >}}) >= (RAM + Flash) x 4. |
| Network<sup>[5](#table-note-5)</sup> | We recommend using multiple NICs per node where each NIC is >1Gbps, but Redis Enterprise Software can also run over a single 1Gbps interface network used for processing application requests, inter-cluster communication, and storage access. | 1G | >=10G |
| Local disk for [Auto Tiering]({{< relref "/operate/rs/databases/auto-tiering/" >}}) | used to to extend databases DRAM capacity with solid state drives (SSDs). Flash memory must be locally attached. [Read more]({{< relref "/operate/rs/databases/auto-tiering/" >}}) | (RAM+Flash) x 1.6 | (RAM+Flash) x 2.5 |


Expand Down Expand Up @@ -61,11 +61,12 @@ Additional considerations:
- If all cluster nodes are utilizing more than 70% of available RAM, highly consider [adding a node]({{< relref "/operate/rs/clusters/add-node" >}}).

- Do not run any other memory-intensive processes on the Redis Enterprise Software node.

4. <a name="table-note-4"></a>Network:

- Only static IP addresses are supported to ensure nodes remain part of the cluster after a reboot.
4. <a name="table-note-4"></a>Persistent storage:

- If no databases on the cluster have [persistence]({{< relref "/operate/rs/installing-upgrading/install/plan-deployment/persistent-ephemeral-storage" >}}) enabled, minimum persistent storage is RAM x 1.1 and the recommended persistent storage is RAM x 2. Persistent storage is essential because Redis Enterprise also uses it to maintain the cluster and database health, configurations, recovery procedures, and more.

5. <a name="table-note-5"></a>Network:

6. <a name="table-note-5"></a>Persistent storage:
- Only static IP addresses are supported to ensure nodes remain part of the cluster after a reboot.

- If no databases on the cluster have [persistence]({{< relref "/operate/rs/installing-upgrading/install/plan-deployment/persistent-ephemeral-storage" >}}) enabled, minimum persistent storage is RAM x 1.1 and the recommended persistent storage is RAM x 2. Persistent storage is essential because Redis Enterprise also uses it to maintain the cluster and database health, configurations, recovery procedures, and more.

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