Create a New Subclient

Before You Begin

• Review Subclients.
• Do not create a subclient while the parent node or any sibling subclient has a data protection or archive operation currently running on it.
• In cases where a new subclient is created with the same name as a deleted subclient, the system will append a Unix time stamp to the deleted subclient's name in data protection job history reports and views to distinguish the two subclients. For example, subclientname_1104257351.
• Informix iDataAgents: If you will be using the Informix ONBAR utility to create backup and restore scripts, you need not create subclients. Otherwise, if you will be using the CommCell Console to back up and restore Informix database objects (subsets/dbspaces), then you will need to create a subclient.
• ProxyHost iDataAgents: If you are using a BCV, you must prepare a batch file or a shell script file on the backup host containing commands to synchronize and split the BCV. The Resource Pack includes information on configurations for these batch files or shell scripts, as well as examples that apply to specific applications and hardware (e.g., Exchange databases in an EMC Symmetrix environment). See Resource Pack for more information on the Resource Pack.

  The ProxyHost iDataAgent also requires that you set permissions for the batch/shell script file on the backup host.

• SQL Server Database iDataAgents: When running on Windows Server 2003 and VSS is enabled, the New Subclient command is not available.
• PostgreSQL iDataAgents: Once you configure the PostgreSQL instance, the system automatically generates the default backup sets and default subclients. However, you can use the CommCell Console to create user-defined subclients for dump backup sets to distribute some of the database content. You cannot create user-defined subclients for FS backup sets.

Required Capability: See Capabilities and Permitted Actions

To create a new subclient:

1. From the CommCell Browser, right-click the node (agent/backup set/archive set/instance) for which you want to create a new subclient, click All Tasks (if applicable), and then simply click New Subclient for most agents.
   • For the SQL Server iDataAgent, expand New Subclient and click either Database to include individual databases or File/File Group to include database elements.
2. Click the General tab or General (Quick Recovery Agent) tab of the Subclient Properties dialog box and type the name (up to 32 characters) of the subclient that you want to create.
   • For supported agents identified in Support Information - Snapshot Engines, you can select a QSnap option to snap data and then perform a data protection operation on the data.
   • For Image Level on Unix and Image Level ProxyHost on Unix, use the Incremental Support Using field to configure either a CXBF subclient or a checksum subclient and to enable incremental support for either subclient type.
   • For QR Agents, you must also select a QR Policy from the QR Policy list.
   • For the Windows iDataAgents that support VSS, you can optionally Enable VSS on a Subclient.
3. Select other options from the General tab as appropriate for the agent.
4. Click the Content or Databases tab of the Subclient Properties dialog box and Configure Subclient Content as appropriate for your agent.
5. For all agents (except QR), click the Storage Device (Data Storage Policy) tab of the Subclient Properties dialog box, then select a data storage policy to associate with this subclient from the storage policy list.
   • For the DB2 and DB2 DPF iDataAgents, you can also change the number of data backup streams. For the DB2 DPF iDataAgent, the default stream threshold should be equal to the total number of database partitions for the subclient.
   • For SQL Server iDataAgents, you can also click the Storage Device (Log Storage Policy) tab of the Subclient Properties dialog box, then select a log storage policy to associate with this subclient from the storage policy list and select the number of backup streams for transaction log backup jobs.
   • For 1-Touch for Unix, it is strongly recommended that the storage policy that you select for the subclient configured for 1-Touch use a MediaAgent on a different computer. If you do this, and if the system crashes, the media will not have to be exported to another MediaAgent in order to recover the system.
6. For Oracle and DB2 iDataAgents, click the Backup Arguments (Oracle) or Backup Arguments (DB2, DB2 DPF) tab of the Subclient Properties dialog box and Configure Backup Arguments as appropriate for your agent. Note that the backup arguments for Informix are located on the Content tab.
7. For Migration Archiver Agents, click the Archiving Rules or Rules tab of the Subclient Properties dialog box and configure archiving rules as appropriate for your agent. In order to perform rules-based migration archiving operations, the Disable All Rules checkbox must be cleared.

   If the File Archiver for Windows supports Data Classification, several filter-like configuration fields are defined as archiving rules and are available from the Subclient Properties (Rules) tab. If you want to define content and archiving rules based on file attributes other than volumes, size, and modified time (i.e., if you want to customize your rules), click the Advanced tab and configure as appropriate. Also, stub management options can be configured from the Stub Rule tab. See Configure Archiving Rules - File Archiver Agents for step-by-step instructions.

8. For ProxyHost and Image Level ProxyHost iDataAgents, click the Pre/Post Process tab of the Subclient Properties dialog box. In the PreScan field, type the path to the batch file/shell script file that contains those commands that are to run before each backup of the subclient, or click Browse to locate and select this file. For ProxyHost and Image Level ProxyHost, the file must reside on the backup host or primary host.
9. Optionally (if supported for your agent) you can:
   • Add a Data Protection or Discovery Filter for a Subclient on the Filters tab.
   • Configure a Subclient for Pre/Post Processing of Data Protection/Archive Operations on the Pre/Post Process tab.
   • Enable Software Compression for a Subclient on the Software Compression tab of the Storage Device tab.
   • Configure the Subclient for Data Encryption on the Encryption tab.
   • Enable or Disable Operations for this subclient on the Activity Control tab.
   • Configure Mailbox Stores for Auto-Discovery on the Auto-discovery tab.
   • Configure the Subclient for 1-Touch on the 1-Touch Recovery tab.
   • View or change the user group security associations for this subclient from the Security tab.
   • Determine location from where archive logs will be backed up or deleted from the Log Destinations tab.
10. Click OK to save the subclient configuration. For QR Agents, this procedure is now complete. For all other agents, continue on to the next step.
11. The Backup Schedule dialog box advises you to schedule data protection operations for your new subclient. It is recommended you elect to set a schedule now. You can also associate this subclient with an All Agent Types schedule policy (which is automatically created by the system, or can be a user defined Data Protection schedule policy). If you have already associated a schedule policy at a previous level (Backup Set/Instance, Agent, Client, or Client Computer Group) the schedules defined in the Schedule Policy will be automatically applied to the new subclient. See Schedule Policy for more information.
    • If you want to associate this subclient with an All Agent Types schedule policy, click Associate with Generic Schedule Policy, and then select that schedule policy from the drop-down list box. Click OK.
    • If you want to associate this subclient with a specific schedule policy, click Associate to schedule policy, and then select the schedule policy from the drop-down list box. Click OK.
    • If you have selected to define a schedule for this subclient:
      • Click Schedule.
      • From the Backup/Archive Options dialog box, select the type of data protection operation that you want to schedule.
      • If you want to set Advanced Backup/Archive Options, click Advanced.
      • After selecting the data protection type and any advanced options, click OK. The Schedule Details dialog box appears.
      • From the Schedule Details tab, select the scheduling options that you want to apply, then click OK.
    • If you don't want to create a data protection schedule at this time, click Do Not Schedule, and then click OK.

This task is now complete.