VM Size machine Standard_NC6s_v3 creates 30GB HDD instead of 700SSD

Question

VM Size machine Standard_NC6s_v3 creates 30GB HDD instead of 700SSD

Rani Mysore Guruswamy (MS/EMP-PS-PJ-MB) 5

Hi Team, Below configuration in RayCluster is creating only 30GB HDD instead of 700SSD for Standard_NC6s_v3 VM and not in-accordance to the standard defined. Any idea what could be missing please?

 node_config:
            azure_arm_parameters:
                vmSize: Standard_NC6s_v3
                # List images https://docs.microsoft.com/en-us/azure/virtual-machines/linux/cli-ps-findimage
                imagePublisher: Canonical
                imageOffer: 0001-com-ubuntu-server-jammy
                imageSku: 22_04-lts-gen2
                imageVersion: latest

2 answers

Your answer

Answer 1

TP 126.4K Volunteer Moderator

Hi,

Image default size for 0001-com-ubuntu-server-jammy for OS disk is 30GB, so that size would be expected. The Temp disk is different than the OS disk, and should be 736 GiB for Standard_NC6s_v3.

Are you saying it is creating OS disk as HDD instead of Premium SSD?

Please click Accept Answer and upvote if the above was useful.

Thanks.

-TP

Rani Mysore Guruswamy (MS/EMP-PS-PJ-MB) 5 Reputation points

2023-12-18T11:39:24.3833333+00:00

Hi , it has created the following and my software/package download takes more than 30 GB and says disk space error. Should i have to configure this explicitly the SSD ?
Rani Mysore Guruswamy (MS/EMP-PS-PJ-MB) 5 Reputation points

2023-12-18T11:41:30.8266667+00:00

Hi , it has created the following and my software/package download takes more than 30 GB and says disk space error. Should i have to configure this explicitly the SSD ?
Rani Mysore Guruswamy (MS/EMP-PS-PJ-MB) 5 Reputation points

2023-12-18T11:50:04.4066667+00:00

I see the storage is in /dev/sdb1 file system, how do i make use of this location for my software installation
TP 126.4K Reputation points Volunteer Moderator

2023-12-18T11:53:27.7866667+00:00

Yes, I believe you need to specify that you want it to use Premium_LRS instead. Different tools may use different defaults. For example, if you just create a VM using CLI az vm create and don't specify, it will use Premium_LRS. In your case it appears it is using Standard_LRS as default.

If you need the OS disk to be larger size you will need to specify that as well.

One option you could consider is to download to the temp disk instead, but that isn't permanent storage so may not fit your needs.
Rani Mysore Guruswamy (MS/EMP-PS-PJ-MB) 5 Reputation points

2023-12-21T02:36:57.4333333+00:00

Thank you very much Vipul. I will check this out, as my software packages are python packages and for time being had used pip with --target attribute. However, I was looking for a generic solution and i would like to use the method mentioned by you.
Rani Mysore Guruswamy (MS/EMP-PS-PJ-MB) 5 Reputation points

2023-12-21T02:37:24.8833333+00:00

Thank you very much Vipul. I will check this out, as my software packages are python packages and for time being had used pip with --target attribute. However, I was looking for a generic solution and i would like to use the method mentioned by you.

Answer 2

vipullag-MSFT 26,492 Moderator

Hello Rani Mysore Guruswamy (MS/EMP-PS-PJ-MB)

As you have mounted the /dev/sdb1 file system to the /mnt directory, you can use the /mnt directory to download and install your software/package.

Here are the steps to download and install your software/package to the /mnt directory:
-Go to /mnt directory
cd /mnt

-Download your software/package to the /mnt directory. For example, if your software/package is available as a tar archive on a remote server, you can use the wget command to download it:
wget http://example.com/software.tar.gz

-Extract the contents of the archive to the /mnt directory:
tar -xzf software.tar.gz

-Install your software/package as you normally would, but specify the /mnt directory as the installation directory. For example, if your software/package has an installation script named install.sh, you can run it with the following command:

sudo ./install.sh --prefix=/mnt

After completing these steps, your software/package should be installed in the /mnt directory on the /dev/sdb1 file system.

Hope this helps.

Rani Mysore Guruswamy (MS/EMP-PS-PJ-MB) 5 Reputation points

2023-12-19T12:59:07.81+00:00

Hi @vipullag-MSFT

Yes i did this already. i have downloaded to /mnt location as it was already mounted.

Could you share the steps i will verify. I'm looking for one time configuration

Regards

Rani
vipullag-MSFT 26,492 Reputation points Moderator

2023-12-19T13:58:27.96+00:00

Hello Rani Mysore Guruswamy (MS/EMP-PS-PJ-MB)

Just checking in to see if you got a chance to see previous response.
Rani Mysore Guruswamy (MS/EMP-PS-PJ-MB) 5 Reputation points

2023-12-21T02:38:21.5033333+00:00

Thank you very much Vipul. I will check this out, as my software packages are python packages and for time being had used pip with --target attribute. However, I was looking for a generic solution and i would like to use the method mentioned by you.
Rani Mysore Guruswamy (MS/EMP-PS-PJ-MB) 5 Reputation points

2023-12-21T05:40:08.43+00:00

Hi @vipullag-MSFT

What if i want to intall these packages within /mnt/<specific_dir> ? So in install.sh i create this specific_dir and specify in prefix?

-Rani
vipullag-MSFT 26,492 Reputation points Moderator

2023-12-27T06:40:04.5766667+00:00

Hello Rani Mysore Guruswamy (MS/EMP-PS-PJ-MB)

You can install the software packages using the prefix option to specify the installation directory. For example, if you are installing a package using pip, you can use the following command:
sudo pip install <package_name> --prefix=/mnt/<specific_dir>

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VM Size machine Standard_NC6s_v3 creates 30GB HDD instead of 700SSD

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