Added a note for Disk attachment

Added a note for Disk attachment

Author: sreekzz

articles/hdinsight/hdinsight-hadoop-provision-linux-clusters.md

@@ -4,7 +4,7 @@ description: Set up Hadoop, Kafka, Spark, or HBase clusters for HDInsight from a
 ms.service: hdinsight
 ms.topic: conceptual
 ms.custom: hdinsightactive, hdiseo17may2017, seodec18
-ms.date: 08/17/2022
+ms.date: 03/16/2023
 ---
 
 # Set up clusters in HDInsight with Apache Hadoop, Apache Spark, Apache Kafka, and more
@@ -243,6 +243,10 @@ For more information, see [Sizes for virtual machines](../virtual-machines/sizes
 
 ### Disk attachment
 
+> [!NOTE]
+> The added disks are only configured for node manager local directories and **not for datanode directories**
+
+
 HDInsight cluster comes with pre-defined disk space based on SKU. Running some  large applications, can lead to insufficient disk space, (with disk full error -  ```LinkId=221672#ERROR_NOT_ENOUGH_DISK_SPACE```) and job failures. 
 
 More discs can be added to the cluster using the new feature **NodeManager**’s local directory. At the time of Hive and Spark cluster creation, the number of discs can be selected and added to the worker nodes. The selected disk, which will be of size 1TB each, would be part of **NodeManager**'s local directories.