选题[tech]: 20230816 How to map SAN LUN, Disk and FileSystem in Linux

sources/tech/20230816 How to map SAN LUN, Disk and FileSystem in Linux.md
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+[#]: subject: "How to map SAN LUN, Disk and FileSystem in Linux"
+[#]: via: "https://www.2daygeek.com/map-san-lun-physical-disk-filesystem-linux/"
+[#]: author: "Rasool Cool https://www.2daygeek.com/author/rasool/"
+[#]: collector: "lujun9972"
+[#]: translator: " "
+[#]: reviewer: " "
+[#]: publisher: " "
+[#]: url: " "
+
+How to map SAN LUN, Disk and FileSystem in Linux
+======
+
+For some requirements, you may need to find a block device mapped against a logical unit number (LUNs) and filesystem (FS) for FS expansion or disaster recovery (DR) activity.
+
+Similar activity may happens frequently when you are managing the bigger infrastructure. Let’s say, more than 1000+ servers hosting various applications.
+
+**Refer the following articles similar to this:**
+
+  * **[How to Find SAN disk LUN id in Linux][1]**
+  * **[How to map ASM disks to Physical disks in Linux][2]**
+
+
+
+In this article, we will show you how to map physical disk, Storage LUN and FileSystem (FS) in Linux.
+
+### Shell Script to map Physical disks to Storage LUNs and FileSystem in Linux
+
+This small shell script helps you to identify which SAN disks are mapped to which Block devices and Filesystem on Linux.
+
+```
+
+    vi block_device_mapping_with_LUN_FS.sh
+
+    #!/bin/bash
+    for lunmap in `lsblk | grep disk | grep ^s | awk '{print $1}'`
+    do
+    for mpoint in `lsblk /dev/$lunmpa | grep lvm | awk '{print $NF}'`
+    do
+    echo "$lunmap --> $mpoint --> $(smartctl -a /dev/$lunmap | grep "Logical Unit id" | awk -F":" '{print $2}')"
+    done
+    done
+
+```
+
+Set an executable permission to ‘block_device_mapping_with_LUN_FS.sh’ file.
+
+```
+
+    chmod +x block_device_mapping_with_LUN_FS.sh
+
+```
+
+Finally run the script to view the results.
+
+```
+
+    sh block_device_mapping_with_LUN_FS.sh
+
+```
+
+![][3]
+
+**Make a Note:** In the above output, device sda won’t show any LUN info because it’s a virtual disk added from VMWare end, which doesn’t have any LUN. Other 3 disks are mapped from Storage that’s why we are able to see LUN info.
+
+If you would like to run the script on the fly, use the following one liner script.
+
+```
+
+    for lunmap in `lsblk | grep disk | grep ^s | awk '{print $1}'`; do for mpoint in `lsblk /dev/$lunmpa | grep lvm | awk '{print $NF}'`; do echo "$lunmap --> $mpoint --> $(smartctl -a /dev/$lunmap | grep "Logical Unit id" | awk -F":" '{print $2}')"; done; done
+
+    sda --> /
+    sda --> /usr
+    sda --> /opt
+    sda --> /tmp
+    sda --> /var
+    sda --> /home
+    sdb --> /data -->      0x3600d0230000000000e1140463955737c
+    sdc --> /app -->      0x3600d0230000000000e114046395577cd
+    sdd --> /backup -->      0x3600d0230000000000e11404639558cc5
+
+```
+
+##### Wrapping Up
+
+In this tutorial, we’ve shown you how to check LUN presented from SAN with underlying OS disk and associated Filesystem on Linux.
+
+If you have any questions or feedback, feel free to comment below.
+
+--------------------------------------------------------------------------------
+
+via: https://www.2daygeek.com/map-san-lun-physical-disk-filesystem-linux/
+
+作者：[Rasool Cool][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/rasool/
+[b]: https://github.com/lujun9972
+[1]: https://www.2daygeek.com/find-san-disk-lun-id-linux/
+[2]: https://www.2daygeek.com/shell-script-map-oracle-asm-disks-physical-disk-lun-in-linux/
+[3]: https://www.2daygeek.com/wp-content/uploads/2023/06/map-san-lun-physical-disk-filesystem-linux-1a-1024x364.jpg