Unity Catalog Volumes

Let's list the volumes.

bin/uc volume list --catalog unity --schema default

You should see a few volumes. Let's get the metadata of one of those volumes.

bin/uc volume get --full_name unity.default.json_files

Now let's list the directories/files in this volume.

bin/uc volume read --full_name unity.default.json_files

You should see two text files listed and one directory. Let's read the content of one of those files.

bin/uc volume read --full_name unity.default.json_files --path c.json

Voila! You have read the content of a file stored in a volume. We can also list the contents of any subdirectory. For example:

bin/uc volume read --full_name unity.default.json_files --path dir1

Now let's try creating a new external volume. First physically create a directory with some files in it. For example, create a directory /tmp/myVolume and put some files in it. Then create the volume in UC.

bin/uc volume create --full_name unity.default.myVolume --storage_location /tmp/myVolume

Now you can see the contents of this volume.

bin/uc volume read --full_name unity.default.myVolume