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Administering
Learn how to configure settings in HCL Launch elements and communication between the elements.
Releasing VC LOB space
After you upgrade to HCL Launch 7.0.5 and later, you can compress the amount of large object (LOB) storage space that HCL Launch uses in the vc_persistent_record database table.

Administering
Learn how to configure settings in HCL Launch elements and communication between the elements.
- High availability and failover
  You can configure clustered HCL Launch servers, blueprint design servers, and agents for high availability. You can also configure agents and agent relays for failover.
- Setting up high-availability clusters
  To configure a high-availability cluster, you store shared files on network storage. Then, you configure multiple servers, set each server to access the same files and database, and configure a load balancer to distribute the traffic between the servers.
- Configuring agents for failover
  To configure agents for failover, you specify two or more target servers for the agent to use. If one of the servers fails, the agent switches to another server from the list.
- Configuring agent relays for failover
  To configure agent relays for failover, you specify two or more target servers for the agent relay to use. If one of the servers fails, the agent relay switches to another server from the list.
- Server settings and configuration
  After you install HCL Launch, you can modify the server configuration and configure more options.
- Setting user preferences
  Each user can specify display options for the server, including the language for the server and how the server shows times and dates.
- Agents and agent relay configuration
  After you install an agent for HCL Launch, you can modify its configuration or create an agent relay to facilitate communication to remote relays.
- License management
  HCL Launch provides a 60-day license-free evaluation period. To use all product features after the evaluation period, you must have a license.
- Setting up the wizard for new users
  HCL Launch includes a wizard to help users become familiar with the procedures and steps in creating a deployment. Some configuration is required before the wizard can be used.
- Customizing the table views
  Customize a table view in the HCL Launch application by hiding or showing, and reordering of the table columns.
- Releasing VC LOB space
  After you upgrade to HCL Launch 7.0.5 and later, you can compress the amount of large object (LOB) storage space that HCL Launch uses in the vc_persistent_record database table.
  - Releasing LOB space in Oracle databases
    You can release the large object (LOB) storage in the Oracle databases.
  - Releasing LOB space in MySQL or Maria databases
    You can release the large object (LOB) storage in the MySQL or Maria databases.
  - Releasing LOB space in Microsoft SQL Server databases
    You can release the large object (LOB) storage in the Microsoft SQL Server database.
  - Releasing LOB space in DB2 databases
    You can release the large object (LOB) storage in the DB2 database.

Releasing VC LOB space

After you upgrade to HCL Launch 7.0.5 and later, you can compress the amount of large object (LOB) storage space that HCL Launch uses in the vc_persistent_record database table.

Before you begin

Releasing the LOB storage space is optional. If you don't release the space, it is reused when new records are added. You can decide whether you want to release the LOB storage space for the following reasons:

You can reduce storage space by 75%.
Reduce the size of one of the largest tables in HCL Launch where the text data decreases by 50-75%.
- A 2-byte character to an average of 1-byte per UTF-8 character which is up to 50% reduction.
- XML might compress by 87% or more because XML data contains many repeated keywords.

You can achieve up to a 50% reduction in read time.