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AdministeringIn addition to administering the database server, you can tune performance, replicate data, and archive data.
System administrationThese topics contain concepts, procedures, and reference information for database and database server administrators to use for managing and tuning HCL OneDB™ database servers.
Performance GuideThe HCL OneDB™ Performance Guide describes how to configure and operate your HCL OneDB™ database server to improve overall system throughput and to improve the performance of SQL queries.
Effect of configuration on I/O activityThe configuration of your database server affects I/O activity.
Factors that affect I/O for smart large objectsAn sbspace is a logical storage unit, composed of one or more chunks, in which you can store smart large objects (such as BLOB, CLOB, or multi representational data). Disk layout for sbspaces, the settings of certain configuration parameters, and some onspaces utility options affect I/O for smart large objects.
Disk layout for sbspacesYou create sbspaces on separate disks from the table with which the data is associated. You can store smart large objects associated with different tables within the same sbspace. When you store smart large objects in an sbspace on a separate disk from the table with which it is associated, the database server provides some performance advantages.

Disk layout for sbspaces

You create sbspaces on separate disks from the table with which the data is associated. You can store smart large objects associated with different tables within the same sbspace. When you store smart large objects in an sbspace on a separate disk from the table with which it is associated, the database server provides some performance advantages.

These performance advantages are:

You have parallel access to the table and smart large objects.
When you choose not to log the data in an sbspace, you reduce logging I/O activity for logged databases.

To create an sbspace, use the onspaces utility. You assign smart large objects to an sbspace when you use the CREATE TABLE statement to create the tables with which the smart large objects are associated.