Merge pull request #102881 from dolevshor/patch-1

VMSS Modify - Restart warnings

Author: Jak-MS

articles/virtual-machine-scale-sets/virtual-machine-scale-sets-upgrade-scale-set.md

@@ -301,6 +301,9 @@ To update existing VMs, you must do a "manual upgrade" of each existing VM. You
     az vmss update-instances --resource-group myResourceGroup --name myScaleSet --instance-ids {instanceIds}
     ```
 
+   > [!NOTE]
+   > The `az vmss update-instances` command will manually upgrade the selected instance to the latest model. While upgrading, the instance may be restarted.
+
 - You can also use the language-specific [Azure SDKs](https://azure.microsoft.com/downloads/).
 
 >[!NOTE]
@@ -326,8 +329,10 @@ There is one type of modification to global scale set properties that does not f
     az vmss reimage --resource-group myResourceGroup --name myScaleSet --instance-id instanceId
     ```
 
-- You can also use the language-specific [Azure SDKs](https://azure.microsoft.com/downloads/).
+   > [!NOTE]
+   > The `az vmss reimage` command will reimage the selected instance, restoing him to the initial state. The instance may be restarted, and any local data will be lost.
 
+- You can also use the language-specific [Azure SDKs](https://azure.microsoft.com/downloads/).
 
 ## Properties with restrictions on modification