Forum Discussion

Brass Contributor

Dec 07, 2019

Solved

Unable to add the disk in Azure Scale set.

Hello Guys, I was unable to add a disk in scale Set. when I try to add a disk in scale set so it showing in the storage section in scale set, but when I try it into the VM using RDP so it not sho...

azure

hspinto
Dec 08, 2019
If your VMSS is in a state similar to what follows:

1. Data disk attached

2. VM instances updated to the latest model

Then you should see the disk in Disk Management

Are all the instances updated to the latest model? Did you scroll down the Disk Management window to see additional disks?

If all the above is true, can you re-image your instances (losing your current OS state, i.e., recreating the VMs)?

hspinto

Microsoft

Dec 07, 2019

Prashant Sharma, when you add a data disk to a scale set, you must update its instances. If your instances show as not having the latest model, you must update them. The "latest model" in a scale set refers not only to the reference image but also to other scale set properties, such as data disks.

Prashant Sharma
Brass Contributor
Dec 08, 2019
hspinto
Hello Hspinto,
Thank you for your reply,
but how to process it. I mean step by step process.?
- hspinto
  Microsoft
  Dec 08, 2019
  Prashant Sharma, it is a very easy process - one liner Powershell/CLI. Please, look at this document: https://docs.microsoft.com/en-us/azure/virtual-machine-scale-sets/virtual-machine-scale-sets-upgrade-scale-set#how-to-bring-vms-up-to-date-with-the-latest-scale-set-model
  
  You have to do repeat the operation for each one of the VM Scale Set instances (VMs).
  
  Make sure you are not using the "reimage" option, as it will recreate your VMs - which is not needed in your use-case.
  - Prashant Sharma
    Brass Contributor
    Dec 08, 2019
    hspinto
    
    Hello Hspinto,
    
    I already tried this before posting this query.
    but this is not working my friend, after this situation is same, the disk is not showing.