Gatekeeper is already configured, simply add it to your storage subsystem's configuration. 
However, if it is not yet configured, it will be necessary to wait until Section 4.2. 3.4: Assign a
Gatekeeper if Required on page 80 to add the Gatekeeper.
6. Set the metadata space thresholds and the update interval. Typical values are  75 for warning, 90 
for critical and 300 to have the metadata space usage checked every 300 seconds.
7. Set the DB Log Monitor Interval.  Minimum value is 300 seconds, typical value is 1800 seconds.
8. Press the Add button to store the configuration.
4.2.3.3.  Create Storage Subs ystem ServersThe new storage subsystem must contain a single Core Server. If migration and purge services will be 
needed then a Migration Purge Server is also required.  See the following sections for  instructions on 
configuring these new servers:
•Section 5.1: Server Configuration on page 87
•Section 5.1.1: Core Server Specific Configuration on page 96
•Section 5.1.2: Migration/Purge Server (MPS) Specific Configuration on page 101
On each server's basic configuration window, be sure to assign the server to the new storage subsystem.
4.2.3.4.  Assign a Gatekeep er if RequiredIf gatekeeping or account validation are needed and an appropriate Gatekeeper is not already configured,  
a new Gatekeeper will be required. See the HPSS Installation Guide, Section 3.7.3:  Gatekeeper, Section 
5.1.2:  Gatekeeper Specific Configuration on page 98 for instructions on configur ing the Gatekeeper.
Be sure to assign this Gatekeeper to the appropriate storage subsystem by choosing it from the 
Gatekeeper selection list on the appropriate Storage Subsystem Configuration window.
4.2.3.5.  Assign Storage Re sources to the Storage Sub systemStorage resources are tied to a storage subsystem through storage classes. To determine which  storage 
classes belong to a particular subsystem, look up the configuration for each Class of Servi ce available to 
the storage subsystem. Each Class of Service is tied to one storage hierarchy which is in turn  tied to some 
number of storage classes. Storage resources must then be assigned to the storage classes which  are used 
in the referenced hierarchies. See Section 8.1.2: Creating Storage  Resources on page 234 for details.
4.2.3.6.  Create Storage Subs ystem Fileset and Juncti onThe HPSS namespace consists of filesets that are connected by junctions.  The top (root directory) of the 
HPSS namespace is the RootOfRoots fileset managed by the Root Core Server. The rest of the 
namespace is built by pasting filesets together using junctions.
Since each subsystem has its own Core Server, it also has its own root fileset. This  fileset needs to be 
connected to the HPSS namespace in order for files to be stored in the new subsystem. This  is 
accomplished by creating a junction from the HPSS namespace to the root fileset of the new  subsystem.
See Chapter 10: Filesets and Junctions for more information.
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