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Article Number: 000202767

Dell VxRail: How to identify Unassociated vSAN objects.

Summary: Instructions on how to identify unassociated vSAN objects using RVC and ESXi objtool.

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Article Content

Instructions

Step 1. Identify the objects using RVC:
* ssh to the vcsa
  
# rvc administrator@vsphere.local@localhost
> cd /localhost/<datacenter-name>/computers/<cluster-name>
 vsan.obj_status_report . --print-uuids --print-table
* Will be working with the Unassociated objects section only 
+------------------------------------------+---------+---------------------------+
| Unassociated objects                     | 18      |                           |
|    a338b560-78bc-e6fa-f520-e4434b18d1d4  |         | 3/3                       |
|    7ac9ae60-b8d3-9711-b67d-e4434b18d264  |         | 3/3                       |
|    a23af760-da61-cc14-95e2-e4434b18cea0  |         | 4/4                       |
|    47227361-b0a5-c91a-a2bf-e4434b18d264  |         | 8/8                       |
|    9f1ca860-b2b8-5524-8168-e4434b18d1d4  |         | 4/4                       |
|    9f1ca860-5e29-1038-90e5-e4434b18d264  |         | 4/4                       |
|    4ae5d960-72f3-2d41-7a79-e4434b12dd68  |         | 3/3                       |
|    ef217361-c80c-8e5a-5b31-e4434b18d264  |         | 8/8                       |
|    4c463b62-02ab-af5f-ef70-e4434b18d1d4  |         | 3/3                       |
|    e113a460-ee57-b166-64bd-e4434b18d264  |         | 4/4                       |
|    0c628961-a8f6-dc67-3b02-e4434b18cea0  |         | 4/4                       |
|    48d29e60-428b-3879-6bc7-e4434b18d1d4  |         | 3/3                       |
|    5d227361-468d-21a2-a530-e4434b18d264  |         | 8/8                       |
|    783af760-a0cf-d2a9-9a7f-e4434b12dd68  |         | 4/4                       |
|    5de3de61-04c4-09b2-2a35-e4434b12dd68  |         | 3/3                       |
|    74227361-786a-43b9-edf6-e4434b18d264  |         | 8/8                       |
|    09e7de61-4a21-18da-e1b8-e4434b12dd68  |         | 5/5                       |
|    9639f760-584a-e5df-898f-e4434b18cea0  |         | 4/4                       |
+------------------------------------------+---------+---------------------------+

Step 2. Create an empty file on an ESXi host with the uuid info.
  
vi unassociated.txt

Then paste only this: 
|    a338b560-78bc-e6fa-f520-e4434b18d1d4  |         | 3/3                       |
|    7ac9ae60-b8d3-9711-b67d-e4434b18d264  |         | 3/3                       |
|    a23af760-da61-cc14-95e2-e4434b18cea0  |         | 4/4                       |
|    47227361-b0a5-c91a-a2bf-e4434b18d264  |         | 8/8                       |
|    9f1ca860-b2b8-5524-8168-e4434b18d1d4  |         | 4/4                       |
|    9f1ca860-5e29-1038-90e5-e4434b18d264  |         | 4/4                       |
|    4ae5d960-72f3-2d41-7a79-e4434b12dd68  |         | 3/3                       |
|    ef217361-c80c-8e5a-5b31-e4434b18d264  |         | 8/8                       |
|    4c463b62-02ab-af5f-ef70-e4434b18d1d4  |         | 3/3                       |
|    e113a460-ee57-b166-64bd-e4434b18d264  |         | 4/4                       |
|    0c628961-a8f6-dc67-3b02-e4434b18cea0  |         | 4/4                       |
|    48d29e60-428b-3879-6bc7-e4434b18d1d4  |         | 3/3                       |
|    5d227361-468d-21a2-a530-e4434b18d264  |         | 8/8                       |
|    783af760-a0cf-d2a9-9a7f-e4434b12dd68  |         | 4/4                       |
|    5de3de61-04c4-09b2-2a35-e4434b12dd68  |         | 3/3                       |
|    74227361-786a-43b9-edf6-e4434b18d264  |         | 8/8                       |
|    09e7de61-4a21-18da-e1b8-e4434b12dd68  |         | 5/5                       |
|    9639f760-584a-e5df-898f-e4434b18cea0  |         | 4/4                       |
NOTE: This is an example, you should use the values you get from the command execution described above.
Save the file.

Run this command to get the uuids only.

cat unassociated.txt | awk '{print $2}' > UUID.txt

* This is the content of UUID.txt 
a338b560-78bc-e6fa-f520-e4434b18d1d4
7ac9ae60-b8d3-9711-b67d-e4434b18d264
a23af760-da61-cc14-95e2-e4434b18cea0
47227361-b0a5-c91a-a2bf-e4434b18d264
9f1ca860-b2b8-5524-8168-e4434b18d1d4
9f1ca860-5e29-1038-90e5-e4434b18d264
4ae5d960-72f3-2d41-7a79-e4434b12dd68
ef217361-c80c-8e5a-5b31-e4434b18d264
4c463b62-02ab-af5f-ef70-e4434b18d1d4
e113a460-ee57-b166-64bd-e4434b18d264
0c628961-a8f6-dc67-3b02-e4434b18cea0
48d29e60-428b-3879-6bc7-e4434b18d1d4
5d227361-468d-21a2-a530-e4434b18d264
783af760-a0cf-d2a9-9a7f-e4434b12dd68
5de3de61-04c4-09b2-2a35-e4434b12dd68
74227361-786a-43b9-edf6-e4434b18d264
09e7de61-4a21-18da-e1b8-e4434b12dd68
9639f760-584a-e5df-898f-e4434b18cea0

Step 3. Obtain their association.
 
Run can run either this to get the list of files associated with these objects.
  
cat UUID.txt | while read UUID ; do echo -e "\nUUID: $UUID" ; /usr/lib/vmware/osfs/bin/objtool getAttr -u $UUID | grep -i 'friend\|class\|path'; done > uuid_status.txt
  
cat uuid_status.txt
UUID: a338b560-78bc-e6fa-f520-e4434b18d1d4
Object class:vmnamespace
Object path:/vmfs/volumes/vsan:52421672ff38ca9a-375c1dfd23d48f51/.vsan.stats
User friendly name:.vsan.stats

UUID: 7ac9ae60-b8d3-9711-b67d-e4434b18d264
Object class:vmnamespace
Object path:/vmfs/volumes/vsan:52421672ff38ca9a-375c1dfd23d48f51/upgradeBundles
User friendly name:upgradeBundles

UUID: a23af760-da61-cc14-95e2-e4434b18cea0
Object class:vdisk
Object path:/vmfs/volumes/vsan:52421672ff38ca9a-375c1dfd23d48f51/9f1ca860-b2b8-5524-8168-e4434b18d1d4/Some-file.vmdk
Or this to filter further:
  
awk '/UUID: /{if (x)print x;x="";}{x=(!x)?$0:x","$0;}END{print x;}' uuid_status.txt |sed 's/UUID: //g' |sed 's/User friendly name://g' |sed 's/Object class: //g' | sed 's/Object path: //g' | sed 's/,$//g' > uuid_status.csv
 
  
cat uuid_status.csv

a338b560-78bc-e6fa-f520-e4434b18d1d4,Object class:vmnamespace,Object path:/vmfs/volumes/vsan:52421672ff38ca9a-375c1dfd23d48f51/.vsan.stats,.vsan.stats
7ac9ae60-b8d3-9711-b67d-e4434b18d264,Object class:vmnamespace,Object path:/vmfs/volumes/vsan:52421672ff38ca9a-375c1dfd23d48f51/upgradeBundles,upgradeBundles
a23af760-da61-cc14-95e2-e4434b18cea0,Object class:vdisk,Object path:/vmfs/volumes/vsan:52421672ff38ca9a-375c1dfd23d48f51/9f1ca860-b2b8-5524-8168-e4434b18d1d4/Some-file.vmdk 
NOTE: Unassociated does not necessarily mean unused/unneeded - any vSAN object that is not associated with a registered Virtual Machine appears as 'Unassociated'.

Article Properties

Affected Product

VxRail Appliance Family, VxRail Appliance Series

Last Published Date

12 May 2023

Version

7

Article Type

How To

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