RS: Add RS 7.8 versioned docs

content/operate/rs/7.8/_index.md

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+---
+Title: Redis Enterprise Software
+alwaysopen: false
+categories:
+- docs
+- operate
+- rs
+description: The self-managed, enterprise-grade version of Redis.
+hideListLinks: true
+weight: 10
+linkTitle: 7.8
+url: '/operate/rs/7.8/'
+---
+
+[Redis Enterprise](https://redis.io/enterprise/) is a self-managed, enterprise-grade version of Redis.
+
+With Redis Enterprise, you get many enterprise-grade capabilities, including:
+- Linear scalability
+- High availability, backups, and recovery
+- Predictable performance
+- 24/7 support
+
+You can run self-managed Redis Enterprise Software in an on-premises data center or on your preferred cloud platform.
+
+If you prefer a fully managed Redis database-as-a-service, available on major public cloud services, consider setting up a [Redis Cloud]({{<relref "/operate/rc">}}) subscription. You can [try Redis Cloud](https://redis.io/try-free/) for free.
+
+## Get started
+Build a small-scale cluster with the Redis Enterprise Software container image.
+- [Linux quickstart]({{< relref "/operate/rs/7.8/installing-upgrading/quickstarts/redis-enterprise-software-quickstart" >}})
+- [Docker quickstart]({{< relref "/operate/rs/7.8/installing-upgrading/quickstarts/docker-quickstart" >}})
+- [Get started with Active-Active]({{< relref "/operate/rs/7.8/databases/active-active/get-started" >}})
+
+## Install & setup
+[Install & set up]({{< relref "/operate/rs/7.8/installing-upgrading" >}}) a Redis Enterprise Software cluster.
+- [Networking]({{< relref "/operate/rs/7.8/networking" >}})
+- [Set up]({{< relref "/operate/rs/7.8/clusters/new-cluster-setup" >}}) & [configure]({{< relref "/operate/rs/7.8/clusters/configure" >}}) a [cluster]({{< relref "/operate/rs/7.8/clusters" >}})
+- [Release notes]({{< relref "/operate/rs/release-notes" >}})
+
+## Databases
+Create and manage a [Redis database]({{< relref "/operate/rs/7.8/databases" >}}) on a cluster.
+- [Create a Redis Enterprise Software database]({{< relref "/operate/rs/7.8/databases/create" >}})
+- [Configure database]({{< relref "/operate/rs/7.8/databases/configure" >}})
+- [Create Active-Active database]({{< relref "/operate/rs/7.8/databases/active-active/create" >}})
+- [Edit Active-Active database]({{< relref "/operate/rs/7.8/databases/active-active/manage.md" >}})
+
+## Security
+[Manage secure connections]({{< relref "/operate/rs/7.8/security" >}}) to the cluster and databases.
+- [Access control]({{< relref "/operate/rs/7.8/security/access-control" >}})
+- [Users]({{< relref "/operate/rs/7.8/security/access-control/manage-users" >}}) & [roles]({{< relref "/operate/rs/7.8/security/access-control" >}})
+- [Certificates]({{< relref "/operate/rs/7.8/security/certificates" >}})
+- [TLS]({{< relref "/operate/rs/7.8/security/encryption/tls" >}}) & [Encryption]({{< relref "/operate/rs/7.8/security/encryption" >}})
+
+## Reference
+Use command-line utilities and the REST API to manage the cluster and databases.
+- [rladmin]({{< relref "/operate/rs/7.8/references/cli-utilities/rladmin" >}}), [crdb-cli]({{< relref "/operate/rs/7.8/references/cli-utilities/crdb-cli" >}}), & [other utilities]({{< relref "/operate/rs/7.8/references/cli-utilities" >}})
+- [REST API reference]({{< relref "/operate/rs/7.8/references/rest-api" >}}) & [examples]({{< relref "/operate/rs/7.8/references/rest-api/quick-start" >}})
+- [Redis commands]({{< relref "/commands" >}})
+
+## Archive
+
+You can use the version selector in the navigation menu to view documentation for Redis Enterprise Software versions 7.4 and later.
+
+To view documentation earlier than version 7.4, see the archived website:
+
+- [Redis Enterprise Software v7.2 documentation archive](https://docs.redis.com/7.2/rs/) 
+
+- [Redis Enterprise Software v6.4 documentation archive](https://docs.redis.com/6.4/rs/) 
+
+- [Redis Enterprise Software v6.2 documentation archive](https://docs.redis.com/6.2/rs/) 
+
+- [Redis Enterprise Software v6.0 documentation archive](https://docs.redis.com/6.0/rs/)
+
+
+## Related info
+- [Redis Cloud]({{< relref "/operate/rc" >}})
+- [Redis Community Edition]({{< relref "/operate/oss_and_stack" >}})
+- [Redis Stack]({{< relref "/operate/oss_and_stack/stack-with-enterprise" >}})
+- [Glossary]({{< relref "/glossary" >}})
+
+## Continue learning with Redis University
+
+See the [Get started with Redis Software learning path](https://university.redis.io/learningpath/an0mgw5bjpjfbe?_gl=1*4gjdoe*_gcl_au*MTkyMTIyOTY3Mi4xNzM5MTk5Mjc4) for courses.

content/operate/rs/7.8/clusters/_index.md

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+---
+Title: Manage clusters
+alwaysopen: false
+categories:
+- docs
+- operate
+- rs
+description: Administrative tasks and information related to the Redis Enterprise
+  cluster.
+hideListLinks: false
+linktitle: Clusters
+weight: 36
+url: '/operate/rs/7.8/clusters/'
+---
+
+You can manage your Redis Enterprise Software clusters with several different tools:
+
+- Cluster Manager UI (the web-based user interface)
+- Command-line tools ([rladmin]({{< relref "/operate/rs/7.8/references/cli-utilities/rladmin" >}}), [redis-cli]({{< relref "/develop/tools/cli" >}}), [crdb-cli]({{< relref "/operate/rs/7.8/references/cli-utilities/crdb-cli" >}}))
+- [REST API]({{< relref "/operate/rs/7.8/references/rest-api/_index.md" >}})

content/operate/rs/7.8/clusters/add-node.md

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+---
+Title: Add a node
+alwaysopen: false
+categories:
+- docs
+- operate
+- rs
+description: Add a node to your existing Redis Enterprise cluster.
+linktitle: Add a node
+weight: 20
+url: '/operate/rs/7.8/clusters/add-node/'
+---
+When you install Redis Enterprise Software on the first node of a cluster, you create the new cluster.
+After you install the first node, you can add more nodes to the cluster.
+
+## Prerequisites
+
+Before you add a node to the cluster:
+
+- The clocks on all nodes must always be [synchronized]({{< relref "/operate/rs/7.8/clusters/configure/sync-clocks.md" >}}).
+
+    If the clock in the node you are trying to join to the cluster is not synchronized with the nodes already in the cluster,
+    the action fails and an error message is shown indicating that you must synchronize the clocks first.
+
+- You must [update the DNS records]({{< relref "/operate/rs/7.8/networking/cluster-dns" >}})
+    each time a node is added or replaced.
+
+- We recommend that you add nodes one after the other rather than in parallel
+    to avoid errors that occur because the connection to the other nodes in the cluster cannot be verified.
+
+## Add node
+
+To add a node to an existing cluster:
+
+1. [Install the Redis Enterprise Software installation package]({{< relref "/operate/rs/7.8/installing-upgrading" >}}) on a clean installation
+    of a [supported operating system]({{< relref "/operate/rs/7.8/installing-upgrading/install/plan-deployment/supported-platforms.md" >}}).
+
+1. To connect to the Cluster Manager UI of the new Redis Enterprise Software installation, go to: <https://URL or IP address:8443>
+
+    For example, if you installed Redis Enterprise Software on a machine with IP address 10.0.1.34, go to `https://10.0.1.34:8443`.
+
+    {{< tip >}}
+The management UI uses TLS encryption with a default certificate.
+You can also [replace the TLS certificate]({{< relref "/operate/rs/7.8/security/certificates/updating-certificates" >}})
+with a custom certificate.
+    {{< /tip >}}
+
+1. Select **Join cluster**.
+
+1. For **Cluster identification**, enter the internal IP address or DNS name of a node that is a cluster member.
+
+    If the node only has one IP address, enter that IP address.
+
+1. For **Cluster sign in**, enter the credentials of the cluster administrator.
+
+    The cluster administrator is the user account that you create when you configure the first node in the cluster.
+
+1. Click **Next**.
+
+1. Configure storage and network settings:
+
+    1. Enter a path for [*Ephemeral storage*]({{< relref "/operate/rs/7.8/installing-upgrading/install/plan-deployment/persistent-ephemeral-storage" >}}), or leave the default path.
+
+    1. Enter a path for [*Persistent storage*]({{< relref "/operate/rs/7.8/installing-upgrading/install/plan-deployment/persistent-ephemeral-storage" >}}),
+        or leave the default path.
+
+    1. To enable [*Auto Tiering*]({{< relref "/operate/rs/7.8/databases/auto-tiering/" >}}),
+        select **Enable flash storage** and enter the path to the flash storage.
+
+    1. If the cluster is configured to support [rack-zone awareness]({{< relref "/operate/rs/7.8/clusters/configure/rack-zone-awareness.md" >}}), set the **Rack-zone ID** for the new node.
+
+    1. If your machine has multiple IP addresses, assign a single IPv4 type address for **Node-to-node communication (internal traffic)** and multiple IPv4/IPv6 type addresses for **External traffic**.
+
+1. Select **Join cluster**.
+
+The node is added to the cluster.
+You can see it in the list of nodes in the cluster.
+
+If you see an error when you add the node, try adding the node again.
+
+## Verify node
+
+We recommend that you verify the node is functioning properly using one of the following methods:
+
+- Cluster Manager UI method:
+
+    1. On the **Nodes** screen, click {{< image filename="/images/rs/buttons/button-toggle-actions-vertical.png#no-click" alt="More actions button" width="22px" class="inline" >}} for the node you want to verify.
+
+    1. Select **Verify node** from the list.
+
+    {{<image filename="images/rs/screenshots/nodes/secondary-nodes-more-actions.png" alt="Click the more actions button for a node to access node actions.">}}
+
+- Command-line method:
+
+    Run the [`rlcheck`]({{< relref "/operate/rs/7.8/references/cli-utilities/rlcheck" >}}) utility from the node's command line.

content/operate/rs/7.8/clusters/change-node-role.md

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+---
+Title: Change node roles
+alwaysopen: false
+categories:
+- docs
+- operate
+- rs
+description: Change node roles to demote the primary node to a secondary node or promote a secondary node to become the primary node.
+linkTitle: Change node roles
+weight: 65
+url: '/operate/rs/7.8/clusters/change-node-role/'
+---
+
+A Redis Software cluster contains a primary node, which coordinates cluster-wide management operations, and multiple secondary nodes. Nodes with either role can host database shards.
+
+## Demote primary node
+
+To demote the primary node to a secondary node using the Cluster Manager UI:
+
+1. On the **Nodes** screen, click {{< image filename="/images/rs/buttons/button-toggle-actions-vertical.png#no-click" alt="More actions button" width="22px" class="inline" >}} for the node you want to promote.
+
+    {{<image filename="images/rs/screenshots/nodes/primary-node-more-actions.png" alt="Click the more actions button for a node to access node actions.">}}
+
+1. Select **Set as a secondary node** from the list.
+
+1. Select one of the options to determine the new primary node:
+
+    - **Automatically**: The cluster decides which node becomes the new primary node.
+
+    - **Choose specific node**: You can manually select which node becomes the new primary node.
+
+    {{<image filename="images/rs/screenshots/nodes/primary-node-set-as-secondary-dialog.png" alt="The Set as a secondary node dialog has two options to select the new primary node, either automatically or manually.">}}
+
+1. Click **Confirm**.
+
+## Promote secondary node
+
+To promote a secondary node to become the primary node using the Cluster Manager UI:
+
+1. On the **Nodes** screen, click {{< image filename="/images/rs/buttons/button-toggle-actions-vertical.png#no-click" alt="More actions button" width="22px" class="inline" >}} for the node you want to promote.
+
+    {{<image filename="images/rs/screenshots/nodes/secondary-nodes-more-actions.png" alt="Click the more actions button for a node to access node actions.">}}
+
+1. Select **Set as the primary node** from the list.
+
+1. Click **Confirm**.
+
+After this node becomes the primary node, all cluster management traffic is directed to it.

content/operate/rs/7.8/clusters/cluster-recovery.md

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+---
+Title: Recover a failed cluster
+alwaysopen: false
+categories:
+- docs
+- operate
+- rs
+description: How to use the cluster configuration file and database data to recover
+  a failed cluster.
+linktitle: Recover a cluster
+weight: 70
+url: '/operate/rs/7.8/clusters/cluster-recovery/'
+---
+When a Redis Enterprise Software cluster fails,
+you must use the cluster configuration file and database data to recover the cluster.
+
+{{< note >}}
+For cluster recovery in a Kubernetes deployment, see [Recover a Redis Enterprise cluster on Kubernetes]({{< relref "/operate/kubernetes/re-clusters/cluster-recovery" >}}).
+{{< /note >}}
+
+Cluster failure can be caused by:
+
+- A hardware or software failure that causes the cluster to be unresponsive to client requests or administrative actions.
+- More than half of the cluster nodes lose connection with the cluster, resulting in quorum loss.
+
+To recover a cluster and re-create it as it was before the failure,
+you must restore the cluster configuration `ccs-redis.rdb` to the cluster nodes.
+To recover databases in the new cluster, you must restore the databases from persistence files such as backup files, append-only files (AOF), or RDB snapshots.
+These files are stored in the [persistent storage location]({{< relref "/operate/rs/7.8/installing-upgrading/install/plan-deployment/persistent-ephemeral-storage" >}}).
+
+The cluster recovery process includes:
+
+1. Install Redis Enterprise Software on the nodes of the new cluster.
+1. Mount the persistent storage with the recovery files from the original cluster to the nodes of the new cluster.
+1. Recover the cluster configuration on the first node in the new cluster.
+1. Join the remaining nodes to the new cluster.
+1. [Recover the databases]({{< relref "/operate/rs/7.8/databases/recover.md" >}}).
+
+## Prerequisites
+
+- We recommend that you recover the cluster to clean nodes.
+    If you use the original nodes,
+    make sure there are no Redis processes running on any nodes in the new cluster.
+- We recommend that you use clean persistent storage drives for the new cluster.
+    If you use the original storage drives,
+    make sure you back up the files on the original storage drives to a safe location.
+- Identify the cluster configuration file that you want to use as the configuration for the recovered cluster.
+    The cluster configuration file is `/css/ccs-redis.rdb` on the persistent storage for each node.
+
+## Recover the cluster
+
+1. (Optional) If you want to recover the cluster to the original cluster nodes, uninstall Redis Enterprise Software from the nodes.
+
+1. [Install Redis Enterprise Software]({{< relref "/operate/rs/7.8/installing-upgrading/install/install-on-linux" >}}) on the new cluster nodes.
+
+    The new servers must have the same basic hardware and software configuration as the original servers, including:
+
+    - The same number of nodes
+    - At least the same amount of memory
+    - The same Redis Enterprise Software version
+    - The same installation user and paths
+
+    {{< note >}}
+The cluster recovery can fail if these requirements are not met.
+    {{< /note >}}
+
+1. Mount the persistent storage drives with the recovery files to the new nodes.
+    These drives must contain the cluster configuration backup files and database persistence files.
+
+    {{< note >}}
+Make sure that the user redislabs has permissions to access the storage location
+of the configuration and persistence files on each of the nodes.
+    {{< /note >}}
+
+    If you use local persistent storage, place all of the recovery files on each of the cluster nodes.
+
+1. To recover the original cluster configuration, run [`rladmin cluster recover`]({{< relref "/operate/rs/7.8/references/cli-utilities/rladmin/cluster/recover" >}}) on the first node in the new cluster:
+
+    ```sh
+    rladmin cluster recover filename [ <persistent_path> | <ephemeral_path> ]<filename> node_uid <node_uid> rack_id <rack_id>
+    ```
+
+    For example:
+
+    ```sh
+    rladmin cluster recover filename /tmp/persist/ccs/ccs-redis.rdb node_uid 1 rack_id 5
+    ```
+
+    When the recovery command succeeds,
+    this node is configured as the node from the old cluster that has ID 1.
+
+1. To join the remaining servers to the new cluster, run [`rladmin cluster join`]({{< relref "/operate/rs/7.8/references/cli-utilities/rladmin/cluster/join" >}}) from each new node:
+
+    ```sh
+    rladmin cluster join nodes <cluster_member_ip_address> username <username> password <password> replace_node <node_id>
+    ```
+
+    For example:
+
+    ```sh
+    rladmin cluster join nodes 10.142.0.4 username [email protected] password mysecret replace_node 2
+    ```
+
+1. Run [`rladmin status`]({{< relref "/operate/rs/7.8/references/cli-utilities/rladmin/status" >}}) to verify the recovered nodes are now active and the databases are pending recovery:
+
+    ```sh
+    rladmin status
+    ```
+
+    {{< note >}}
+Make sure that you update your [DNS records]({{< relref "/operate/rs/7.8/networking/cluster-dns" >}})
+with the IP addresses of the new nodes.
+    {{< /note >}}
+
+After the cluster is recovered, you must [recover the databases]({{< relref "/operate/rs/7.8/databases/recover.md" >}}).

content/operate/rs/7.8/clusters/configure/_index.md

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+---
+Title: Configure clusters
+alwaysopen: false
+categories:
+- docs
+- operate
+- rs
+description: Configuration options for your Redis Enterprise cluster.
+hideListLinks: false
+linktitle: Configure
+weight: 50
+url: '/operate/rs/7.8/clusters/configure/'
+---
+You can manage your Redis Enterprise Software clusters with several different tools:
+
+- Cluster Manager UI (the web-based user interface)
+- Command-line tools ([rladmin]({{< relref "/operate/rs/7.8/references/cli-utilities/rladmin" >}}), [redis-cli]({{< relref "/develop/tools/cli" >}}), [crdb-cli]({{< relref "/operate/rs/7.8/references/cli-utilities/crdb-cli" >}}))
+- [REST API]({{< relref "/operate/rs/7.8/references/rest-api/_index.md" >}})
+
+
+