update the redis cache documents (#534)

Author: SalimKainos

source/cloud-native-platform/new-component/Update-redis-with-zone-redundant.html.md.erb

@@ -9,110 +9,23 @@ weight: 10
 
 This guide explains how to update your Azure Cache for Redis to enable zone redundancy for improved availability and resilience.
 
-## Prerequisites
-
-- Azure Cache for Redis instance
-- Appropriate permissions to modify the Redis cache
-
-## Process Overview
-
-For enabling zone redundancy on Redis caches, follow this process:
-
-1. **Development team** creates a Jira ticket in **#platops-help** requesting zone redundancy enablement (example: [DTSPO-28087](https://tools.hmcts.net/jira/browse/DTSPO-28087))
-2. **Platops team** performs the manual update via Azure Portal
-3. **Development team** updates Terraform configuration after portal changes are complete
-
-## Upgrade from Basic to Standard SKU
-
-If your Redis cache is currently using the **Basic SKU**, you must first upgrade to **Standard** before enabling zone redundancy, as zone redundancy is not available on Basic tier.
-
-### Steps to Upgrade SKU:
-
-1. **Development team** creates a Jira ticket in **#platops-help** requesting upgrade to Standard tier
-2. **Platops team** will:
-   - **Navigate to your Redis cache** in the Azure Portal
-   - **Go to Settings** → **Scale** in the left navigation menu
-   - **Select Standard tier** from the available options
-   - **Choose the appropriate cache size** based on your requirements
-   - **Click Select** to apply the upgrade
-
-
-> **Note:** The upgrade process may take several minutes.
-
-## Enable Zone Redundancy
-
-Once Platops has upgraded the Redis cache to Standard tier, they will:
-
-1. Verify the upgrade was successful by checking the Overview page which will show "Running - Standard 1 GB" status
-2. Navigate to **Settings** → **Advanced settings** in the left navigation menu
-3. Scroll down to **Zone redundancy** section
-4. Check the **"Allocate zones automatically"** checkbox
-5. Click **Save** to apply the changes
-
-After receiving confirmation from Platops that zone redundancy has been enabled:
-
-## Update Terraform Configuration
-
-Once Platops has enabled zone redundancy via the portal, the development team should update their Terraform configuration:
-
-
-Update your Terraform configuration to reflect the Standard SKU:
-
-```hcl
-sku_name = "Standard"
-family   = "C"
-```
-
-When you run the Terraform plan, it shows nothing to add or destroy.
-
-
-This confirms that your Terraform configuration now matches the infrastructure state after the manual upgrade.
-
-## Upgrade from Standard to Premium (Optional)
-
-If you need Premium features, the process is similar:
-
-1. **Development team** creates a Jira ticket in **#platops-help** requesting upgrade to Premium tier
-2. **Platops team** will:
-   - **Navigate to Settings** → **Scale** in the left navigation menu
-   - **Select P1 Premium** from the Premium tier options
-   - **Review the features** including:
-     - 6 GB Cache
-     - All Standard features
-     - Data Persistence
-     - Virtual Network support
-     - Redis Cluster support
-   - **Click Select** to apply the Premium upgrade
-
-## Update Terraform Configuration to Premium
-
-After receiving confirmation from Platops that the Redis cache has been upgraded to Premium, the development team should update their Terraform configuration:
-
-
-Change the code to Premium as shown:
-
-```hcl
-sku_name = "Premium"
-family   = "P"
-rdb_backup_enabled = true
-```
-
-When you run the Terraform plan, it shows 1 to add for storage account creation, nothing to destroy.
 
 ## For Existing Premium Tier Redis Caches
 
+> **Main advice:** Please perform these changes out of hours, as there is a possibility of downtime.
+
 If you already have a Premium tier Redis cache instance:
 
-1. **Development team** creates a Jira ticket in **#platops-help** requesting zone redundancy enablement
-2. **Platops team** will:
-   - **Navigate to your Redis cache** in the Azure Portal
-   - **Go to Settings** → **Advanced settings** in the left navigation menu
-   - **Check the "Zone redundancy"** option
-   - **Click Save** to apply the changes
+1. **Go to Access Package and request Redis Cache Contributor Access (Production)**. Once activated, proceed to the next step.
+2. Go to the Azure Portal
+   - Navigate to your Redis cache
+   - Go to Settings → Advanced settings in the left navigation menu
+   - Check the "Zone redundancy" option
+   - Click Save
 
 ### Update Terraform Configuration
 
-After Platops has enabled zone redundancy in the portal, the development team should update their Terraform configuration:
+After zone redundancy has been enabled in the portal, the development team should update their Terraform configuration:
 
 ```hcl
 sku_name = "Premium"