TAGS

earth-observation

configuration

linux

HOW TO ACCESS EARTH OBSERVATION DATA (EODATA)?

To access EODATA you have to operate from a VM created from a project with EODATA access (project_with_eo). If you want to create an additional project with EODATA access - you may create it and then submit a ticket to our support so that we connect it to the EODATA network - currently there is no automatic procedure to connect projects to the EODATA.

Primary way of accessing Earth Observation data is using object interface to the CREODIAS EODATA repository.

Access S3 object interface using command line tools, development libraries or file system emulation.

In Linux:

You may access the EODATA repository using s3cmd tool which is available in most of our standard VM images.

How to use Object Storage?

Linux images in CloudFerro cloud come with additional tool which emulates filesystem storage using S3 object interface: s3fs.

s3fs is used to mount the repository under /eodata mount point.

When you are at the VM with EODATA access you should be able to see the full EODATA directory tree under the catalogue: /eodata. Please try ls /eodata or df -h .

If /eodata is empty it means that the EODATA storage was not mounted yet. You then have to execute sudo mount /eodata. Please remember that default images allow running sudo from eouser account.

In Windows:

Windows environment does not provide open source tool to emulate filesystem using object interface, therefore NFS proxy has to be used.

Double click the "mount_nfs" icon on the Desktop. The EODATA repository will be mounted to disk Z:

Please note that the NFS interface has some limitations including very slow listing of directories which have thousands of objects in their tree (for example ls on daily production of Sentinel-2 may take substantial amount of time or even not complete due to protocol defined timeouts). Therefore it is recommended to go directly to product path which can be discovered using the product search tool: https://finder.creodias.eu