Introduce min_instances parameter

Author: Yusuf-Uzun

docs/configuration-parameters-1830bca.md

@@ -382,7 +382,30 @@ Integer
 </td>
 <td valign="top">
 
-Specifies the maximum number of provisionable ingest instances, which are scaled automatically based on their overall CPU utilization. Must be between `2` and `10`. Defaults to `2`. This parameter impacts peak throughput and buffering. Scale-out happens when the overall CPU utilization exceeds 80%. Scale-in happens when the overall CPU utilization or configuration parameter decreases. This parameter has no effect on the *dev* plan, which is limited to a single instance.
+Specifies the maximum number of provisionable ingest instances, which are scaled automatically based on their overall CPU and memory utilization. Must be between `2` and `10`. Defaults to `2`. This parameter impacts peak throughput and buffering. Scale-out happens when the overall CPU utilization exceeds 80%. Scale-in happens when the overall CPU utilization or configuration parameter decreases. This parameter has no effect on the *dev* plan, which is limited to a single instance.
+
+</td>
+</tr>
+</tr>
+<tr>
+<td valign="top">
+
+min\_instances
+
+</td>
+<td valign="top">
+
+No
+
+</td>
+<td valign="top">
+
+Integer
+
+</td>
+<td valign="top">
+
+Specifies the minimum number Fluentd instances which are always provisioned regardless of auto-scaling. Utilized to guarantee a minimum number of running instances, support predictable workloads, and mitigate autoscaling lag during sudden ingestion bursts. Must be between `2` and `10` and less than or equals to `max_instances`. Default is `2`. This parameter has no effect on the *dev* plan, which is limited to a single instance. If `max_instances` is smaller than `min_instances`, both parameters will be set to the value of `max_instances` (= no autoscaling).
 
 </td>
 </tr>
@@ -722,7 +745,8 @@ The following snippet shows a sample payload that could be used for a `standard`
 >   },
 >   "feature_flags": [ "upgradeToOpenSearchV2" ],
 >   "ingest": {
->     "max_instances": 10
+>     "max_instances": 10,
+>     "min_instances": 2
 >   },
 >   "retention_period": 14
 > }

docs/create-an-sap-cloud-logging-instance-through-cloud-foundry-cli-3658d09.md

@@ -32,7 +32,8 @@ See [Prerequisites](prerequisites-41d8559.md).
                "api_enabled": false
             },
             "ingest": {
-               "max_instances":  10
+               "max_instances":  10,
+               "min_instances": 2
             }
          }'
         

docs/create-an-sap-cloud-logging-instance-through-sap-btp-service-operator-f6aa131.md

@@ -58,6 +58,7 @@
              retentionPeriod: 14
              ingest:
                 max_instances: 10
+                min_instances: 2
     
     ```