Google Cloud - NetApp Volume performance

[Tacoma]

I am not sure if this is the correct forum, but I did see other posts about NetApp volumes here. Please advise of the correct forum if needed.

On the Google Cloud Platform, I deployed  a STANDARD service level 2048gb NetApp storagepool in uscentral1.

Then I created a 100gb volume also in uscentral1.

I have a question about this volume's performance. When I use the FIND command to traverse through a directory, the performance is noticeably slower on the Netapp volume versus the same data on the local drive.

At first I was thinking I needed to increase my throughput performance by increasing my service level or making the volume bigger(which increases throughput performance). But after thinking about it, my FIND command is not moving data, it's just traversing through the directory. So it seems this is not a throughput issue?

Does anyone have insight as to the performance issue here:

root@server1:~# time find /data_local/cache/4c71-4cb6-bd50-d80aa7/ -type f | wc -l
4995
real 0m0.119s
user 0m0.058s
sys 0m0.059s

root@server1:~# time find /data_NetappVol/cache/4c71-4cb6-bd50-d80aa7/ -type f | wc -l
4995
real 0m3.968s
user 0m0.078s
sys 0m0.219s

[Adithya_Kameswaran]

Hello, 

While trying to use the find command to traverse through the content of the volume, would it be possible to collect the output of the below command from the storage end: 

::>  qos statistics volume latency show -vserver <SVM_name> -volume <volume_name>

The above output will give us the latency breakdown for the volume and shows the contribution from each ONTAP subsystem. 

[Tacoma]

Hi @Adithya_Kameswaran 
Unfortunately since this is a Google Cloud NetApp Volume,  the  "qos statistics volume latency"  command is not available to me:
     tacoma@server1:$ qos
     -bash: qos: command not found

Do you have another way I could collect the latency data?

I tried posting this same issue on the Google Cloud forum, but no one replied. There is no Netapp support from google, so Netapp is my only option left for support.

https://www.googlecloudcommunity.com/gc/Infrastructure-Compute-Storage/Google-Cloud-NetApp-Volume-performance/td-p/869349 

https://www.netapp.com/google-cloud/netapp-volumes/
https://cloud.google.com/netapp/volumes/docs/discover/overview 

[Tacoma]

nudge..

[Adithya_Kameswaran]

Hello @Tacoma , 

Thank you for your response. I am currently discussing about the issue in your GCNV environment with my internal escalation team and shall get back to you with further updates by EOD, 28 March 2025 on how to proceed further with collecting the latency metrics and also in terms of the process to get appropriate support from Google Cloud as well as from NetApp end. 


I truly appreciate your patience and would like to apologize for the inconvenience. 

Regards
Adithya K

[Tacoma]

Hi @Adithya_Kameswaran 
Thank you.
We are waiting to resolve our Netapp performance issue before we go production with it.
If we can't get the performance issue fixed or at least have a better understanding of what the issue is, then we might have to move to another product or solution.
We are hoping that we can resolve this issue because the Netapp volume meets all our other architecture needs including the ease of using it on google's cloud platform.

[Adithya_Kameswaran]

Hello @Tacoma 

Thank you for your response, and firstly apologies for delay from my side. 

I did have a discussion with the internal team and have the below pointers on the issue that we are observing: 

• From the description of the issue, the team would like to understand the difference in terms of the latency observed on the NetApp volume in comparison to the local drive. 
• Additionally, with respect to changing the service level; the team mentioned that it will not be possible to change the service level from standard and received the below feedback:  

I will not be possible to change the service level from standard to premium or extreme to get better throughput. Service level change is possible only between premium and extreme.

I also had a word with the team to understand the procedure to officially reach NetApp Team that supports GCNV and they have asked to go ahead with opening a case with Google Cloud by leveraging the option in the link below: 

Google Cloud NetApp Volumes support

Once Google Cloud receives your request, the same will be routed to the team at NetApp to assist you further. 

[Tacoma]

Great thank you!
I created a support ticket as you instructed. The ticket info is: 
    b/409083367 : Google Cloud - NetApp Volume performance