V11 Service Pack 11
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Overview - File Archiver for UNIX Agent

Deprecated:

See End-of-Life, Deprecated and Extended Support - Products for information about deprecated products.
Note: If you want to continue to use the UNIX File Archiver for archiving and recovery operations, you cannot upgrade the client.

Introduction

File Archiver for UNIX Agent is installed as a stand alone archiving agent, and is not dependent on the UNIX File System iDataAgent.

The Archived data allows preservation, transparent retrieval, and discovery of information held within file system environment. It reduces the size of data on the primary storage and decreases the duration of backup operations by the corresponding iDataAgent. Migrating data from file systems to secondary, tiered-storage maximizes storage utilization across the enterprise.

The File Archiver for UNIX can optionally create stubs that contain information about the archived data to facilitate end-users with non-browse recovery operations from third-party applications. Migrated data can also be recovered from the CommCell Console using the browse recovery operation whether the stubbing feature is enabled or disabled. Additionally, it employs centralized, policy-based storage to reduce costs and simplify management.

Key Features

The UNIX File Archiver involves the following key features:

Recall Throttling

You can configure the stub recovery parameters, such that, you can set the Maximum Number of Stubs in a Recall Job, Time between recalls and Time to wait after maximum successive recalls limit is reached.

Point-in-Time Restore

You can restore the system state of a client, backed up on a specific date and time.

Stub Pruning

In the archive phase, File Archiver for UNIX will archive files meeting the pre-set archive criteria and, if applicable, put them into a list for the stubbing phase and prune the expired stubs. This helps in secondary storage space reclamation.

Terminology

The UNIX File Archiver documentation uses the following terminology:

Migration Archiving

Migration archiving is a process of periodically moving unused or infrequently used UNIX File System data on a host computer to secondary storage, thereby reducing the size of data on the primary storage.

Stubbing

The stubbing phase starts after the archive phase succeeds. Stubs are placeholders of the original data after it has been migrated to the secondary storage. Stubs replace the archived files in the location selected by the user during the archive.  However, stubs will only be created if the subclient properties were configured to create them during archive.

Data Recovery

 

The archived and migrated data can be recovered in any of the following three methods:

  • Recovery of archived files per file paths provided using the CommCell Console.
  • Browse and Recovery of archived files using the CommCell Console.
  • Recall of archived files from stubs using third-party applications like: UNIX Terminal or Console window.

Stub Recovery

If the subclient is configured to create stubs, you can perform a recall operation from a UNIX workstation for recovering the stubs. A recall is any action that causes an open and read to be executed on the stub, which automatically initiates a recovery operation.

Last modified: 1/12/2018 11:47:08 AM