Contains a row for each data space that is a filegroup.
For a list of columns that this view inherits, see sys.data_spaces (Transact-SQL).
GUID for the filegroup.
NULL = PRIMARY filegroup
Identified for informational purposes only. Not supported. Future compatibility is not guaranteed. In SQL Server, the value is NULL.
1 = Filegroup is read-only.
0 = Filegroup is read/write.
Requires membership in the public role. For more information, see Metadata Visibility Configuration.