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+[#]: subject: "How to find SAN LUN Mapped to VxVM Disk in Linux"
+[#]: via: "https://www.2daygeek.com/find-san-lun-mapping-with-vxvm-disk-veritas-linux/"
+[#]: author: "Prakash Subramanian https://www.2daygeek.com/author/prakash/"
+[#]: collector: "lujun9972"
+[#]: translator: " "
+[#]: reviewer: " "
+[#]: publisher: " "
+[#]: url: " "
+
+How to find SAN LUN Mapped to VxVM Disk in Linux
+======
+
+We’ve written several articles in the past to find LUN ID mapped to Block device/disk, but when you’re managing a **[VCS cluster][1]** there are some situations where you might want to map a LUN ID against a VxVM (Veritas Volume Manager ) disk for VxFS file system expansion.
+
+This short article describes how to find the LUN number associated with a VxVM disk in Linux
+
+**Recommended Read:**
+
+  * **[How to Find SAN disk LUN id in Linux][2]**
+  * **[How to map ASM disks to Physical disks in Linux][3]**
+  * **[How to map SAN LUN, Disk and FileSystem in Linux][4]**
+  * **[How to map LUN, Disk, LVM and File System in Linux][5]**
+
+
+
+### Shell Script to find LUN Number Mapped to VxVM Disk in Linux
+
+This handy shell script helps you to identify which storage LUN associated to which VxVM disk on Linux.
+
+#### How this script works
+
+This script follow the below steps to collect and print these information’s.
+
+  * It collects the list of active **‘Disk Group’ (DG)** on the system
+  * Find the **‘Device Names’** associated with the respective DGs.
+  * Next, it lists the **‘Block Devices’** mapped with the respective devices.
+  * Finally collects the **LUN IDs** associated with these block devices and prints them all together like DG name, block device name and LUN numbers.
+
+
+
+```
+
+    vi VxVM_disk_mapping_with_LUN_number.sh
+
+    #!/bin/bash
+    ###########################################################
+    # Purpose: Mapping LUN Number to VxVM Disk in Linux
+    # Author: 2DayGeek
+    # Version: v1.0
+    ###########################################################
+
+    echo "DG_Name           Block_Device            LUN_Number"
+    echo "-------------------------------------------------------------------"
+    for dg_name in `vxdg list | awk '{print $1}' | grep -v NAME`
+    do
+     for d_name in `vxdisk -e list | grep -i $dg_name | awk '{print $1}'
+      do
+        for b_device in `vxdisk list $d_name | grep -w state=enabled | awk '{print $1}' | head -1`
+        do
+         echo "$dg_name --> $b_device --> $(lsscsi --scsi | grep $b_device | awk '{print $NF}'"
+        done
+      done
+    done | column -t
+
+```
+
+Set an executable permission to shell script file.
+
+```
+
+    chmod +x VxVM_disk_mapping_with_LUN_number.sh
+
+```
+
+Finally execute the script to view the results.
+
+```
+
+    sh VxVM_disk_mapping_with_LUN_number.sh
+
+```
+
+Your output will resemble this. However, the DG name, Block devices and LUN would differ from this.
+
+![][6]
+
+If you would like to run the above script on the fly, use the following one liner script.
+
+```
+
+    # for dg_name in `vxdg list | awk '{print $1}' | grep -v NAME`; do for d_name in `vxdisk -e list | grep -i $dg_name | awk '{print $1}'; do for b_device in `vxdisk list $d_name | grep -w state=enabled | awk '{print $1}' | head -1`; do echo "$dg_name --> $b_device --> $(lsscsi --scsi | grep $b_device | awk '{print $NF}'"; done; done; done | column -t
+
+    apachedg   -->  sde -->  3600d0230000000000e11404639558823
+    apachedg   -->  sdf -->  3600d0230000000000e11404639558824
+    apachedg   -->  sdg -->  3600d0230000000000e11404639558825
+    sftpdg     -->  sdh -->  3600d0230000000000e11404639558826
+    sftpdg     -->  sdi -->  3600d0230000000000e11404639558827
+
+```
+
+##### Wrapping Up
+
+In this tutorial, we have shown you how to find the LUN number mapped with VxVM (Veritas Volume Manager) disk in Linux.
+
+If you have any questions or feedback, feel free to comment below.
+
+--------------------------------------------------------------------------------
+
+via: https://www.2daygeek.com/find-san-lun-mapping-with-vxvm-disk-veritas-linux/
+
+作者：[Prakash Subramanian][a]
+选题：[lujun9972][b]
+译者：[译者ID](https://github.com/译者ID)
+校对：[校对者ID](https://github.com/校对者ID)
+
+本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
+
+[a]: https://www.2daygeek.com/author/prakash/
+[b]: https://github.com/lujun9972
+[1]: https://www.2daygeek.com/category/veritas-cluster/
+[2]: https://www.2daygeek.com/find-san-disk-lun-id-linux/
+[3]: https://www.2daygeek.com/shell-script-map-oracle-asm-disks-physical-disk-lun-in-linux/
+[4]: https://www.2daygeek.com/map-san-lun-physical-disk-filesystem-linux/
+[5]: https://www.2daygeek.com/map-san-lun-physical-disk-filesystem-lvm-info-linux/
+[6]: https://www.2daygeek.com/wp-content/uploads/2023/07/find-san-lun-mapping-with-vxvm-disk-veritas-linux-1024x298.jpg