Disk space counting

Google Groups archive
1

Hello all!

I need to calculate how much disk space an orthanc takes per week, month, year
are there any tools for this to see by tags, something like “Orthanc Tools”?

2

Hi,

Disk space use depends on the amount and size of stored studies…
We have observed that Orthanc database will needs about 1% of disk space used by studies (coarse estimate).
HTH,

3

Thanks for the answer, but I meant how to calculate how much the files will take, that is, to analyze in practice how much the files themselves will take in a week \ month

4

Can't you simply monitor the size of the storage folder in your operating system ?

I'm rewriting Orthanc Tool to a Javascript version, It is somehow possible to extend the dicom tag monitoring for this kind a purpose but don't have enough bandwith for now.

5

You can install a monitoring tool such as PRTG to monitor disk usage, after time it will give usage reports which you can use to trend storage used and future growth.

6

Hello,

As a complement to Bryan’s answer, Orthanc implements a route in its REST API that publishes its metrics in the OpenMetrics’ format. Example on the demo server:

$ curl https://demo.orthanc-server.com/tools/metrics-prometheus
orthanc_count_instances 2352 1585806784744
orthanc_count_patients 7 1585806784744
orthanc_count_series 23 1585806784744
orthanc_count_studies 7 1585806784744
orthanc_disk_size_mb 870.907837 1585806784744
orthanc_jobs_completed 5 1585806784744
orthanc_jobs_failed 0 1585806784744
orthanc_jobs_pending 0 1585806784744
orthanc_jobs_running 0 1585806784744
orthanc_jobs_success 5 1585806784744
orthanc_rest_api_active_requests 1 1585806784743
orthanc_rest_api_duration_ms 0 1585806776939
orthanc_storage_read_duration_ms 0 1585788016312
orthanc_uncompressed_size_mb 870.907837 1585806784744

You can use this information to fill monitoring tools such as Prometheus:
https://book.orthanc-server.com/users/advanced-rest.html#instrumentation-with-prometheus

https://en.wikipedia.org/wiki/Prometheus_(software)

HTH,
Sébastien-

7

Thank you all for the answers! I found a solution thanks to Sébastien. The 1st option is to use metrics in prometheus and the 2nd option is to use the zabbix user parameter, with a script for the zabbix agent that reads the metric and extracts the desired value. here is my example:

`

@Echo Off
for /f "tokens=1,2 delims=. " %%a in (‘curl.exe -s http://admin:admin@127.0.0.1:8042/tools/metrics-prometheus’) do if “%%a”==“orthanc_disk_size_mb” Set value=%%b
echo %value%

`

as far as I know from version 4.4, zabbix supports prometheus metrics, this is for earlier versions =)