Update hardware-requirements-embed.md (#1078)

* Update hardware-requirements-embed.md update SW min hardware requirements add Redis Flex (auto tiering) min local disk size requirements * Update hardware-requirements-embed.md min HW requirements when no persistency used * Small style updates for sentence case * Update content/embeds/hardware-requirements-embed.md Co-authored-by: Rachel Elledge <[email protected]> * Update content/embeds/hardware-requirements-embed.md Co-authored-by: Rachel Elledge <[email protected]> * Update hardware-requirements-embed.md * Update hardware-requirements-embed.md * Added footnote link to persistent storage row & updated footnote order --------- Co-authored-by: Rachel Elledge <[email protected]> Co-authored-by: Rachel Elledge <[email protected]>
redis · Jan 22, 2025 · d977034 · d977034
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Showing 1 changed file with 15 additions and 8 deletions.
diff --git a/content/embeds/hardware-requirements-embed.md b/content/embeds/hardware-requirements-embed.md
@@ -24,11 +24,13 @@ We recommend these hardware requirements for production systems or for developme
 | Item | Description | Minimum requirements | Recommended |
 |------------|-----------------|------------|-----------------|
 | Nodes<sup>[1](#table-note-1)</sup> per cluster | At least three nodes are required to support a reliable, highly available deployment that handles process failure, node failure, and network split events in a consistent manner. | 3 nodes | >= 3 nodes (Must be an odd number of nodes) |
-| 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. | 4 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. | 15GB | >=30GB |
-| 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 6 (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 5. |
-| Network<sup>[4](#table-note-4)</sup> | We recommend using multiple NICs per node where each NIC is >100Mbps, 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 |
+| 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<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 |
+
 
 Additional considerations:
 
@@ -48,18 +50,23 @@ Additional considerations:
 
     - If some of the cluster nodes are utilizing more than 80% of the CPU, consider migrating busy resources to less busy nodes.
 
-    - If all the cluster nodes are utilizing over 80% of the CPU, consider scaling out the cluster by [adding a node]({{< relref "/operate/rs/clusters/add-node" >}}).
+    - If all the cluster nodes are utilizing over 80% of the CPU, highly consider scaling out the cluster by [adding a node]({{< relref "/operate/rs/clusters/add-node" >}}).
 
 3. <a name="table-note-3"></a> RAM:
 
     - Redis uses a relatively large number of buffers, which enable replica communication, client communication, pub/sub commands, and more.  As a result, you should ensure that 30% of the RAM is available on each node at any given time.
 
     - If one or more cluster nodes utilizes more than 65% of the RAM, consider migrating resources to less active nodes.
 
-    - If all cluster nodes are utilizing more than 70% of available RAM, consider [adding a node]({{< relref "/operate/rs/clusters/add-node" >}}).
+    - 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:
+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:
 
     - Only static IP addresses are supported to ensure nodes remain part of the cluster after a reboot.
+