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You can also use the CLU to create an empty collection.
The character limit for each metadata value is 2700.
The following table compares the functionality available with each command:
Command | Data Type | Source | Presigned | Multipart | Command Allows You To | File SizeUpdate Metadata | Metadata Extraction1 |
---|---|---|---|---|---|---|---|
dm_register_dataobject (Using dm_register_dataobject and Updating Data File Metadata via the CLU) | 1 file and metadata | Register a new file with metadata. or Update metadata of an existing file. | Up to 2 TB from File system (up to 10 GB),Globus, AWS S3, or Google Cloud storage | No | Yes, if the file is 50 MB or largerYesUp to 10 GB from local system | Yes, for file local system | |
dm_register_dataobject_presigned | 1 Register a new file and with metadata. | File system (up Up to 2 GB (recommendation) )from local system | Yes | No | No | No | |
dm_register_dataobject_multipart | 1 Register a new file and with metadata | File system | Yes | Yes, if the file is 50 MB or larger | . | Up to 2 TB from local systemNo | No |
dm_register_collection (Creating an Empty Collection via the CLU and Updating Collection Metadata via the CLU) | Metadata | NA | Register a new collection with metadata. or Update metadata for an existing collection. NA | NA | Yes | NA | |
dm_register_directory (Registering Directory Contents from Your File Local System via the CLU) | 1 collection Register a new collection from a specified directory (including subcollections subdirectories and files) and with metadata. | Up to 2 TB from local File system | Yes | Yes, if the file is 50 MB or larger | Yes | Yes
Footnote 1: In the Metadata Extraction column, a "Yes" indicates you can extract metadata from the header of TIFF or BMP image files.