File Archiver: Agents
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The File Archiver for Unix Agent is a software module that is responsible for 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. File Archiver Agents reduce the duration of backup windows by reducing the amount of data to be backed up by an iDataAgent.
The File Archiver for Unix Agent provides data protection support for all data types, except for those listed below.
The following file types/objects are not recommended for archiving. Although it is possible to archive them, doing so could cause applications or the operating system to not function properly.
The following file types/objects are automatically filtered out of archive operations by the system, and cannot be archived.
On AIX, Journal File System 2 (JFS2), IBM General Parallel File System (GPFS), VERITAS File System (VxFS) and VERITAS Cluster File System (VxCFS) are supported.
On HP-UX, VERITAS File System (VxFS) is supported.
On Linux, 'X' File System (XFS) is supported. Also supported are Extent 3 File System (ext3), IBM General Parallel File System (GPFS), PolyServe Matrix Server, VERITAS File System (VxFS) and VERITAS Cluster File System (VxCFS).
GFS2 (Clustered File System) is supported on Red Hat Linux 5.
| The default Extent 2 File System (ext2) supplied with Red hat 5 will not support File Archiver for Unix Agent. It should be complied as a module. |
On Novell OES2 Linux, the NSS file system is supported.
On Solaris, Unix File System (UFS), VERITAS File System (VxFS) and Zettabyte File System (ZFS on Solaris 10 6/06) are supported.
On a single client in an AIX cluster, Journal File System 2 (JFS2), IBM General Parallel File System (GPFS) and VERITAS Cluster File System (VxCFS) are supported.
On a single client in a Linux cluster, IBM General Parallel File System (GPFS), PolyServe Matrix Server and VERITAS Cluster File System (VxCFS) are supported.
When the File Archiver for Unix Agent is installed, the following levels are automatically created in the CommCell Browser.
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defaultArchiveSet: Archive Sets |
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Before performing a Migration Archiving Operation using a File Archiver Agent, create a user-defined subclient. See Subclients - File Archiver for Unix for more information. |
To perform a data protection operation using this Agent a specific Product License must be available in the CommServe® Server.
Review general license requirements included in License Administration. Also, View All Licenses provides step-by-step instructions on how to view the license information.
Besides the CommServe and MediaAgent, there is one component to be installed for File Archiver for Unix:
For the procedures on installing this component, refer to Deployment - File Archiver for Unix.
The archive operation is based on subclients, so the following configuration is per subclient basis. The following options are located in the subclient Properties (Rules) tab.
The configuration of the archiving rules is central to customizing migration archiving operations to meet the needs of your organization. For more information, see Overview.
| Archiving Rules are initially disabled by default. After creating a subclient, you must clear the Disable All Rules option and configure archiving rules before Archive Operations are possible. Otherwise, the system will ignore all archiving rules (except for the Do Not Create Stub rule) for the subclient. |
To keep the index within a manageable size, a new index will be created every certain number of archive operations. This value can be entered in the “Create Index every n Archives” field on the subclient Properties (Rules) tab.
Data can be recovered from Network File System (NFS) mount points when properly configured. See Recover Data through NFS Clients for configuration information.
After configuration is completed, the recovery administrator can schedule archive jobs, similar to scheduling backup jobs for iDataAgents. To ensure that only successfully archived files will be changed into stubs, the archive operation is divided into two phases: archive and stubbing. The stubbing phase starts after the archive phase succeeds. However, stubs will only be created if the subclient properties were configured to create them during archive.
In the archive phase, File Archiver for Unix will archive the files meeting the pre-set archive criteria and, if applicable, put them into a list for the stubbing phase and prune expired stubs.
Refer to Migration Archiving for more information on archiving.
File Archiver for Unix provides two ways to recover a archived file: from the CommCell Console (stand-alone application) or from a Terminal Window.
From the CommCell Console, the browse of File Archiver for Unix data is forced to be a non-image browse to view all the archived files in this archive cycle (i.e., since last creation of new index). The recovery administrator can browse and find the file to recover. To find files archived earlier than the last creation of new index, the administrator can provide a point-in-time in the Browse Options dialog box.
The second method of recovery, is recovering archived file(s) from a Terminal Window by entering either vi or cat followed by the path and filename of the archived file.
Refer to Recover Archived Data for more information on Recovery operations.
The File Archiver for Unix product does not provide the ability to restore the entire system in the event of a disaster. Systems using an Archiver Agent should also be protected using the corresponding backup and recovery agent. File Archiver for Unix relies upon the Unix File System iDataAgent to perform a full system restore of client data. For more information, see Disaster Recovery for the appropriate Unix File System iDataAgent.