Installation manual

Adapting Storage to User Demands
2-6 CLI Storage-Management Guide
1. Chapter 6, Adding an External Filer, contains instructions for adding an external
(NAS or DAS-enhanced) filer to the configuration.
2. Chapter 7, Configuring a Namespace, contains instructions for aggregating
external-filer storage into a namespace.
Once the namespace is configured, you must configure the server for clients to access
the namespace:
1. configure a global server that clients can use to access the namespace over IP
(see Chapter 10, Configuring a Global Server), and
2. create one or more front-end services, such as NFS or CIFS, to offer the
namespace storage through the global server. See Chapter 11, Configuring
Front-End Services.
Adapting Storage to User Demands
The ARX’s position between clients and back-end servers presents a unique
opportunity for adapting to changes in usage. The ARX processes every client request
and server response, so it can
• classify information as it is generated,
• monitor client-access patterns and back-end-resource usage, and
• adapt the back-end resources to meet client demands in real time.
The ARX adapts by migrating files from one filer to another. You use namespace
policy to set rules and thresholds for migration.