StorageClass (MQCHAR8)

This is a user-defined name that defines the physical storage used to hold the queue. In practice, a message is written to disk only if it needs to be paged out of its memory buffer.

Table 1. Queue types to which this attribute applies
Local	Model	Alias	Remote	Cluster
X	X

To determine the value of this attribute, use the MQCA_STORAGE_CLASS selector with the MQINQ call. The length of this attribute is given by MQ_STORAGE_CLASS_LENGTH.

[z/OS] This attribute is supported only on z/OS®.