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Hitachi Vantara Knowledge

Monitoring a namespace

While the namespace Overview panel in the Tenant Management Console gives you a view of a namespace as a whole, these namespace views of the tenant log let you monitor namespace activity on a more detailed level:

  • The namespace-level all-events view shows all log messages for a given namespace.
  • The namespace-level compliance view shows all log messages about events that require the compliance role for a given namespace.

Although unlikely, if HCP finds a broken object it cannot repair, it reports the event in the tenant log. In the Tenant Management Console, you can see a list of the irreparable, unavailable, and nonreplicating objects in any given namespace.

Viewing the complete namespace event log

The namespace All Events panel lists all namespace-specific log messages. By default, the panel displays ten messages at a time in reverse chronological order.

Before you begin

To view the namespace All Events panel, you need the monitor, administrator, or compliance role. However, only users with the compliance role can see messages about events that require the compliance role.

Procedure

  1. In the top-level menu of the Tenant Management Console, click Namespaces.

  2. In the list of namespaces, click the name of the namespace you want.

  3. In the row of tabs below the namespace name, click Monitoring.

  4. On the left side of the Monitoring panel, click All Events.

Viewing the namespace compliance log

The namespace Compliance Events panel lists all namespace-specific log messages about events that require the compliance role. This includes all retention class activity and privileged delete operations. By default, the panel displays ten messages at a time in reverse chronological order.

Before you begin

To view the namespace Compliance panel, you need the compliance role.

Procedure

  1. In the top-level menu of the Tenant Management Console, click Namespaces.

  2. In the list of namespaces, click the name of the namespace you want.

  3. In the row of tabs below the namespace name, click Monitoring.

  4. On the left side of the Monitoring panel, click Compliance Events.

Working with unavailable objects

HCP keeps track of objects that are unavailable. You can view a list of these objects for any given namespace in the Tenant Management Console.

Before you begin

To view the Unavailable Objects panel, you need the monitor or administrator role.

Procedure

  1. In the top-level menu of the Tenant Management Console, click Namespaces.

  2. In the list of namespaces, click the name of the namespace you want.

  3. In the row of tabs below the namespace name, click Monitoring.

  4. On the left side of the Monitoring panel, click Unavailable Objects.

    For each object it lists, the Unavailable Objects panel shows the date that the HCP system discovered the unavailable object, the name of the object, and the reason why it is unavailable.

    If an object subsequently becomes available again, the object is removed from the list.

    By default, the objects in the Unavailable Objects panel are listed ten at a time in reverse chronological order by discovery time:

    • To view a different number of objects, select the number of objects you want in the Items per page field. The options are 10, 20, 50, and 100.
    • To page forward or backward, click the next (GUID-9985BDFB-A69D-467E-855C-5831560412AF-low.png) or back (GUID-D920B78F-D7BD-4C72-BD58-15EF00BFF121-low.png) control, respectively.

Working with irreparable objects

To view the Irreparable Objects panel, you need the monitor or administrator role. To acknowledge irreparable objects, you need the administrator role.

Displaying irreparable objects

The HCP system keeps track of the irreparable objects it finds. You can view a list of these objects for any given namespace in the Tenant Management Console.

Procedure

  1. In the top-level menu of the Tenant Management Console, click Namespaces.

  2. In the list of namespaces, click the name of the namespace you want.

  3. In the row of tabs below the namespace name, click Monitoring.

  4. On the left side of the Monitoring panel, click Irreparable Objects.

About irreparable objects

For each object it lists, the Irreparable Objects panel shows the full path to the object (starting after rest or data) and the date and time at which HCP discovered that the object was irreparable. If the namespace has ever had versioning enabled, the list also shows the version ID of each object.

If HCP subsequently repairs a listed object, the object is removed from the list.

You can acknowledge irreparable objects in the Irreparable Objects panel. Acknowledging an object leaves a checkmark in the object row. You can use this option to distinguish objects you’ve already seen from objects that have recently become irreparable.

You can delete irreparable objects from a namespace through normal delete operations as long as the objects are not under retention (or by using privileged delete if the objects are under retention). When you delete an object, HCP removes it from the list of irreparable objects.

NoteAcknowledging that an object is irreparable does not delete the object from the namespace.

By default, the objects in the Irreparable Objects panel are listed ten at a time in reverse chronological order by discovery time:

  • To view a different number of objects, select the number of objects you want in the Items per page field. The options are 10, 20, 50, and 100.
  • To page forward or backward, click the next (GUID-9985BDFB-A69D-467E-855C-5831560412AF-low.png) or back (GUID-D920B78F-D7BD-4C72-BD58-15EF00BFF121-low.png) control, respectively.

Acknowledge irreparable objects

To acknowledge all objects, whether selected or not, on all pages in a single operation, click Acknowledge All.

Procedure

  1. In the Irreparable Objects panel, individually select the objects you want to acknowledge, or click select all to select all the unacknowledged objects on the current page.

  2. Click Acknowledge Selected.

Working with nonreplicating objects

To view the Nonreplicating Objects panel, you need the monitor or administrator role.

Displaying nonreplicating objects

HCP keeps track of objects and parts of multipart objects that cannot be replicated. You can view a list of these objects and object parts for any given namespace in the Tenant Management Console.

Procedure

  1. In the top-level menu of the Tenant Management Console, click Namespaces.

  2. In the list of namespaces, click the name of the namespace you want.

  3. In the row of tabs below the namespace name, click Monitoring.

  4. On the left side of the Monitoring panel, click Nonreplicating Objects.

About nonreplicating objects

For each listed object or object part, the Nonreplicating Objects panel shows the date and time when HCP discovered the nonreplicating object or object part, the version number of the object or object part, the reason why the object or object part was not replicated, and the name of the object or object part.

The possible reasons why an object or object part is nonreplicating are:

  • Object is not completely written

    The object or object part is nonreplicating because the write operation used to create the object was never completed.

  • Object is temporarily nonreplicating

    The object or object part is nonreplicating, but the situation that's causing it to be nonreplicating is most likely temporary. This state is typically due to a system-level issue such as a node becoming unavailable. HCP usually resolves these issues on its own within 24 to 48 hours. If the object or object part remains in this state for more than 48 hours, contact your HCP system administrator.

  • Object is unavailable or irreparable

    The object or object part is nonreplicating because it is unavailable or irreparable.

If HCP subsequently replicates a listed object or object part, the object or object part is removed from the list.

By default, the objects and object parts in the Nonreplicating Objects panel are listed ten at a time in reverse chronological order by discovery time:

  • To view a different number of objects, select the number of objects you want in the Items per page field. The options are 10, 20, 50, and 100.
  • To page forward or backward, click the next (GUID-9985BDFB-A69D-467E-855C-5831560412AF-low.png) or back (GUID-D920B78F-D7BD-4C72-BD58-15EF00BFF121-low.png) control, respectively.

Deleting a namespace

You can delete a namespace that does not contain any objects.

If a namespace is being replicated, you may not be able to delete it directly on all the HCP systems in the replication topology. However, if you delete it on one system, the deletion is replicated to the other systems.

ImportantIf the namespace you want to delete is being replicated, do not clear it from replication before deleting it. If you clear it first, the deletion is not replicated and the namespace remains on the other systems where it was replicated. Depending on the replication topology, you may not be able to delete the namespace on one or more of those other systems.

To empty a namespace, use HCP Data Migrator. With HCP Data Migrator, you can delete multiple directories and objects in a single job.

When a namespace is deleted, the chargeback statistics for it become unavailable. Therefore, before deleting a namespace for which you need these statistics, generate a chargeback report.

Procedure

  1. In the top-level menu of the Tenant Management Console, click Namespaces.

  2. In the list of namespaces, click the delete control (GUID-11785CEF-F744-432A-8841-A3B9C0F08596-low.png) for the namespace you want to delete.

  3. In response to the confirming message, click Delete.

 

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