HP StorageWorks File Migration Agent V2.1 administrator guide (T4274-96105, October 2006)

File Migration Agent administrator guide 19
Figure 3 Hierarchical storage management in heterogeneous networks
Important terms
Archive
Backend archive like an FSE Archive, any other NAS storage device, or the RISS.
Backend datastore
Device that stores the data moved from the local system.
File Policy
A set of rules that determines which files are to be migrated whenever the policy process runs. The rules
can be any combination of file age, file size and file name. Rules may also include or exclude files from
migration by name or attribute. Wildcards may be used for the file name.
File Policies may be defined per directory and are applied to all files of that directory and its
subdirectories, unless a subdirectory has its own file policy defined.
HSM metadata
Additional information that the HSM system needs for data management.
Inactive files (old data)
Files that have not been touched for a particular period of time and, therefore, are considered inactive.
Managed volumes
Volumes that are managed by the FMA. The file system of these drives must be NTFS. System drives are not
supported.
Migration
Creating a copy of the local file in the backend archive.
Policy Process
The engine that interprets the file policies and triggers migrations and releases of files according to the
policies. The policy process can be scheduled to run at any desired schedule, as often as seems
appropriate.
Recall
This process retrieves data from the backend archive.
Release
Process that deletes the local file content after a successful migration and marks the file OFFLINE.
Remote Storage Adapter (RSA)
Implements the FMA Storage interface and acts like a “driver” for different “flavors” of archive storage.
Stubfile
Local “substitution file” for a file that has been released; also called “shortcut.” The stubfile is marked as a