This command is used to trigger transmission requests to a local, owning subsystem for Virtual Volumes it created with the ExhangeMetaDataOnly=D attribute setting. These Virtual Volumes are normally deferred for transmission until the remote subsystem attempts to Externalize them.
The DEFEREXMT command provides a manual method for concurrently transmitting these Remote Virtual Volumes prior to Externalization to prevent the transmission from delaying Externalization.
DEFERXMT [GROUP=nn, SUBGROUP=S|M|L, CONCURRENCY=nn, DELAY=nnn, EXPIRE=nnnn]
Where GROUP, SUBGROUP, or both are used to filter and serialize the scan of the Externalization Queue while looking for Remote Virtual Volumes that require deferred transmission. The program defaults to all Groups and Subgroups.
CONCURRENCY allows you to control the number of concurrent transmission requests to control the increase in network traffic. The value can be from 1 to 32. The default is 5.
DELAY is used to specify the amount of time in seconds that the program will wait between progress checks on the transmissions requested. When a progress check determines that a transmission request has completed, the next request in the job’s list is submitted. The value can be from 1 to 120. The default is 15.
EXPIRE is used to specify the maximum amount of time in minutes that the job should perform progress checks on submitted transmission requests. When a transmission request reaches the coded time limit, it is assumed complete and the next request in the job’s list is submitted. The value can be from 1 to 1440. The default is 10.
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