Performance considerations for directly attached optical media libraries

Read about the performance considerations that are specific to directly attached optical libraries.

When a file has extended attributes, they are stored separately from the data. When the data is written or copied, the attributes must also be written or copied. If file attributes are not required, attribute copying can be suppressed when copying between the QOPT and QDLS files systems by using the Change Optical (CHGOPTA) command. Setting the copy attributes (CPYATR) value on the CHGOPTA command to *NO suppresses the copying of attributes between the QOPT and QDLS file systems.