Understanding returned metadata

The Search Results page shows metadata for each listed object. You can see some metadata initially. You can view the remaining metadata by showing result details.

The metadata shown varies depending on namespace type and object type. The Search Results page shows as much of this metadata as is available:

For all objects

  • Size

    The object size, in bytes.

  • Version ID

    The version ID of the object.

  • Retention

    The retention setting for the object, shown as one of these:

    • A specific date and time in the future.
    • Deletion Prohibited.
    • Initial Unspecified.
    • A retention class.
    • Expired. This includes objects whose retention setting is either a specific date and time in the past or Deletion Allowed.
    NoteHCP cannot represent dates later than February 18, 2038, at 22:14:07. Later dates appear as 2/18/2038 22:14:07 (overflow).

  • Hold

    An indication of whether the object is on hold. While an object is on hold, it cannot be deleted under any circumstances until it is explicitly released, nor can its retention setting be changed.

    While the metadata query engine is active, for an object that’s on hold, the retention setting is followed by | HOLD.

    While the Data Discovery Suite search facility is active, this setting is shown as either Held or Not Held.

  • Custom metadata annotations

    (metadata query engine only)

    If the object has one or more custom metadata annotations, a list of the annotation names. You can click any annotation name to view the content of that annotation. You can right-click the link to copy the URL for the annotation.

  • Access control list URL

    (metadata query engine only)

    If the object has an ACL, the URL for that ACL. You can click this URL to view the content.

    The access control list URL consists of the object path followed by a type=acl query parameter. For example, this URL specifies the ACL for an object named Q1_2012.ppt:

    https://finance.europe.hcp.example.com/rest/presentations/
    Q1_2012.ppt?type=acl

  • Ingest time

    The date and time the object was created (that is, when the data was added to the namespace).

  • Access time

    The POSIX atime for the object. Users and applications can change this metadata.

    While the metadata query engine is active, this metadata is shown for all objects. While the Data Discovery Suite search facility is active, this metadata is shown only for objects in the default namespace.

  • Modify time

    The POSIX mtime for the object. Users and applications can change this metadata.

    While the metadata query engine is active, this metadata is shown for all objects. While the Data Discovery Suite search facility is active, this metadata is shown only for objects in the default namespace.

  • Change time

    The POSIX ctime for the object. This is the last time the object metadata changed.

    While the metadata query engine is active, this metadata is shown for all objects. While the Data Discovery Suite search facility is active, this metadata is shown only for objects in the default namespace.

  • Hash value

    The cryptographic hash value for the object. The label for this value is the name of the cryptographic hash algorithm used to calculate the value.

  • DPL

    The number of copies of the object data HCP must maintain, as dictated by the service plan that applies to the namespace. DPL stands for data protection level.

  • Shredding

    The shred setting for the object, which indicates whether the object will be shredded when it’s deleted. Shredding is the process of deleting an object and overwriting the place where it was stored in such a way that none of its data or metadata can be reconstructed.

  • Replication

    An indication of whether the object has been replicated to another HCP system.

  • MIME type

    (Data Discovery Suite search facility only)

    The MIME type of the object content.

  • Format

    (Data Discovery Suite facility only)

    The format of the object content.

  • Language

    (Data Discovery Suite facility only)

    The language of the object content.

  • User ID

    The POSIX user ID of the object owner.

    While the metadata query engine is active, this metadata is shown for all objects. While the Data Discovery Suite search facility is active, this metadata is shown only for objects in the default namespace.

  • Group ID

    The POSIX ID of the owning group.

    While the metadata query engine is active, this metadata is shown for all objects. While the Data Discovery Suite search facility is active, this metadata is shown only for objects in the default namespace.

  • Permissions

    The object permissions in POSIX format and as an octal value.

    While the metadata query engine is active, this metadata is shown for all objects. While the Data Discovery Suite search facility is active, this metadata is shown only for objects in the default namespace.

  • Owner

    (metadata query engine only)

    For objects in HCP namespaces, the user that owns the object. The owner is an HCP-specific metadata property and does not correspond to the POSIX UID of an object. This value has this format:

    USER,location,username

    For objects with no owner, this value has this format:

    GROUP,location,all_users

    In these formats:

    • location

      The location in which the user account of the object owner is defined. For objects with no owner, this is the tenant that owns the namespace that contains the object.

      This value can be the name of an HCP tenant or the name of an Active Directory domain preceded by an at sign (@).

    • username

      The user name of the object owner. This value can be the username of a user account that’s defined in HCP or the username of an Active Directory user account. The username for an AD user account can be either the user principal name or the Security Accounts Manager (SAM) account name.

    For objects in the default namespace, the value for owner is an empty string.

    For objects in HCP namespaces that existed before the HCP system was upgraded from a pre-5.0 release and that have not subsequently had their owner changed, the value for owner is nobody. These objects effectively have no owner.

With the Data Discovery Suite search facility, for many document formats, such as Word documents and PDFs

  • Author

    The author of the object content

  • Title

    The title of the object content

  • Subject

    The subject of the object content

  • Category

    The category of the object content

With the Data Discovery Suite search facility, for email objects

The text in the email subject field

The message ID

  • From

    The email address of the sender

  • To

    The email addresses of the recipients

  • Attachments

    The names of any files attached to the email

  • CC

    The exposed email addresses of additional recipients

  • BCC

    The hidden email addresses of additional recipients

  • Send date

    The date and time the email was sent