Function

Click on the items below for information about the functions of ADSM.

USER
FUNCTION
ADMINISTRATOR
FUNCTION
Backup/Restore
Function
Automation
Function
Administration
Function
Archive/Retrieve
Function
Disaster
Recovery
Function
Security
Function
Client Hierarchical
Storage Manager
(HSM) Function
Server Hierarchical
Storage Manager
(HSM) Function
 

 
 
 
 
 

Backup and Restore

Backup and Restore functions allow backup-archive clients to make backup copies of data at specified intervals and restore the data from those copies when required. These functions provide protection from workstation or file server media failure, accidental file deletion, data corruption, data vandalism, and site wide disasters.

Click on the picture for more information about backup and restore functions.

ASHHX003.GIF


 
 
 
 
 

Archive and Retrieve

Archive and retrieve functions provide backup-archive clients with point-in-time copies of data for long-term storage.

Click on the picture for more information about archive and retrieve functions.

ASHHX004.GIF


 
 
 
 
 

Migrate and Recall

Client hierarchical storage management (HSM), also known as space management, can prevent out-of-space conditions on HSM clients by migrating files from the clients to server storage.

Click on the picture for more information about migrate and recall functions.

ASHHX005.GIF


 
 
 
 
 

Backup

A backup stores copies of files, subdirectories, and directories on storage media. To provide maximum automation, backups can be based on defined policies and can be centrally scheduled. Client file systems are typically backed up at intervals so copies can quickly accumulate. ADSM automatically tracks backup versions and deletes them when they are no longer current.

ADSM provides two types of backup:

The backup function provides backup-archive clients with the following:

Restore

A restore identifies backed up copies of files, subdirectories, and directories and returns them to the client file system. The restore function provides backup-archive clients with the following:

Archive

Archive stores copies of files, subdirectories, and directories for long-term storage. For example, some hospital records, audit reports, and legal records require storage for a long time. The archive function provides backup-archive clients with the following:

Retrieve

A retrieval identifies archived files, subdirectories, and directories and returns the data to a client workstation. The retrieve function provides backup-archive clients with the following:

Migrate

Migration frees storage space on workstations and file servers by moving large, seldom used, or aging files form workstations and file servers to server storage. Administrators can set policies that migrate files only when a valid backup of the file exists in ADSM server storage. This ensures the recoverability of migrated data if the original copy is damaged.

Users can define capacity thresholds for HSM client file systems. When a threshold is reached, client files are automatically moved from client storage to server storage.

ADSM provides three types of migration for HSM clients:

Recall

The HSM function recalls files to the HSM client automatically if they are referenced.

ADSM provides two types of recall:

Server Hierarchical Storage Management

Server storage is composed of storage pools. A storage pool is a named set of storage volumes that is used as the destination for client files. ADSM provides three default storage pools on disk:

When you configured a tape device to ADSM using the ADSM Manual Device Configuration Wizard, the wizard automatically created a tape storage pool for tape volumes. You can arrange your storage pools into a hierarchy. Server hierarchical storage management optimizes server storage by migrating client files from storage pools of more expensive media (disk, for example) to storage pools of less expensive media (tape, for example). Migration is started and stopped based on high and low thresholds that the administrator sets for each storage pool. Migration applies to all client files (backup, archive, and client HSM).

Hint: Whenever you configure a device for ADSM to use, you must associate a storage pool with the device.

Click here ASHHX903.GIF for an example of threshold-based migration.


 
 
 
 
 

Automation

ADSM administrators can increase productivity by automating many day-to-day storage administration tasks.


 
 
 

Policy Controlled Backup Options


 
 
 

Scheduling Examples


 
 
 
 
 

Administration

Administration functions provide ADSM administrators with support for day-to-day monitoring, administration, and accounting of ADSM.


 
 
 
 
 

Security

Security functions prevent unauthorized access to ADSM-managed data, storage, policy definitions, and administrative commands. These security options allow the security administrator to control the limit or extent of a persons access to these resources.


 
 
 
 
 

Disaster Recovery

Disaster recovery functions assist the administrator with the implementation of a comprehensive backup and recovery procedure for important business applications, data, and records.

The ADSM database contains information about client files. Database availability is improved with mirroring; however, after a site-wide disaster, mirrored copies could also be damaged or unavailable.