Downlong Zip taking too long

Hi everybody

I have an orthanc with 2TB of studies, approx. File system is a NFS share connected to AWS S3
When I go to a study and click on the “Download Zip” it takes like 30 minutes to return the download.

Has anyone experienced this kind of slow performance?
How can I trace the origin of this?

Thanks in advance.
Diego

The creation and download of a ZIP file depends on many factors: Study size, network speed, CPU…

If you expect performance, S3 is certainly the worse choice: S3 is there for space. Use a plain GNU/Linux virtual machine, with proper CPU and RAM, and a large hard disk instead:
http://book.orthanc-server.com/faq/scalability.html

In either case, your issue is not related to Orthanc, but to the infrastructure you run Orthanc on.

Just to add one information,
The biggest factor I found influencing the speed of Orthanc operation is the Hard Disk technology.

I have one computer with M2 hard disk and one another with a conventional hard disk.
Just to give an idea, the anonymization of a study that could took up to 10 min with conventional hard disk is made on less than 30 secs with the M2 hard disk.
Same difference for ZIP generation etc …

Just have to wait to get affordable 2TB + M2 Nmve …

Thanks Salim.
I have experienced these behaviors, more than once.
It’s weird the difference in performance between storage technology.
I would expect differences but no so big…

Thanks again.
Diego