Document Seamless Source/Target Switchover

content/features/seamless-source-target-switchover.md

@@ -0,0 +1,21 @@
+---
+title: Seamless Source/Target Switchover
+description: Seamless source/target role switching with minimal performance impact.
+menu:
+  main:
+    parent: features
+    name: Seamless Source/Target Switchover
+    weight: 50
+---
+
+# Seamless Source/Target Switchover
+
+KubeStash supports seamless source/target role switching with minimal performance impact. Switching primary and secondary roles between DC and DR is a coordinated act across the data layer, the control plane, and the traffic plane. KubeDB owns intra-cluster failover for supported database engines. KubeStash provides the verified, restore-tested data layer underneath: `BackupVerifier` proves the DR copy is restorable before the switch, and a `RestoreSession` can promote DR data on demand. The result is a smooth, scripted switchover with minimal performance impact on either side.
+
+## Related concepts
+
+- [BackupConfiguration](/docs/latest/concepts/crds/backupconfiguration/)
+- [BackupBlueprint](/docs/latest/concepts/crds/backupblueprint/)
+- [RestoreSession](/docs/latest/concepts/crds/restoresession/)
+- [RetentionPolicy](/docs/latest/concepts/crds/retentionpolicy/)
+- [BackupVerifier](/docs/latest/concepts/crds/backupverifier/)

data/products/kubestash.json

@@ -168,6 +168,19 @@
       },
       "summary": "",
       "description": "Stash comes with native support for monitoring via Prometheus. You can use builtin Prometheus scrapper or CoreOS Prometheus Operator to monitor your database in Kubernetes. You can use the Grafana to view key operational metrics, including compute/memory/storage capacity utilization, I/O activity, and instance connections."
+    },
+    {
+      "title": "Seamless Source/Target Switchover",
+      "image": {
+        "src": "/assets/images/addons/illustrations/declarative-api.png",
+        "alt": "http"
+      },
+      "icon": {
+        "src": "/assets/images/products/stash/features/declarative-api.svg",
+        "alt": "http"
+      },
+      "summary": "Seamless source/target role switching with minimal performance impact.",
+      "description": "KubeStash supports seamless source/target role switching with minimal performance impact. Combined with KubeDB, primary and secondary roles can be switched between DC and DR without operator improvisation. BackupVerifier proves the target side is restore-tested before switchover."
     }
   ],
   "versions": [