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9.3. Disk Usage Considerations
Although, you can find information about all JBoss Data Virtualization settings using the Management CLI (see Section 10.1, “JBoss Data Virtualization Settings”), this section provides some additional information about those settings related to disk usage.
buffer-service-max-buffer-space- Default is 51200. For table page and result batches, the buffer manager will limit the number of files that are dedicated to a particular storage size. However, creation of Large Object (LOB) values (for example through SQL/XML) will typically create one file per LOB once the LOB exceeds the allowable in memory size of 8KB. In heavy usage scenarios, consider pointing the buffer directory on a partition that is routinely defragmented. By default, JBoss Data Virtualization will use up to 50GB of disk space. This is tracked in terms of the number of bytes written by JBoss Data Virtualization. For large data sets, you may need to increase the
buffer-service-max-buffer-spaceproperty.
