Restarting stopped channels

When a channel goes into STOPPED state, you have to restart the channel manually.

You can restart the channel in the following ways:
  • By using the START CHANNEL MQSC command.
  • By using the Start Channel PCF command.
  • By using the MQ Explorer.
  • [z/OS]On z/OS®, by using the Start a channel panel.
  • [IBMi]On IBM® i, by using the STRMQMCHL CL command or the START option on the WRKMQMCHL panel.

For sender or server channels, when the channel entered the STOPPED state, the associated transmission queue was set to GET(DISABLED) and triggering was set off. When the start request is received, these attributes are reset automatically.

[z/OS]If the channel initiator stops while a channel is in RETRYING or STOPPED status, the channel status is remembered when the channel initiator is restarted. However, the channel status for the SVRCONN channel type is reset if the channel initiator stops while the channel is in STOPPED status.

Distributed[IBMi]If the queue manager stops while a channel is in RETRYING or STOPPED status, the channel status is remembered when the queue manager is restarted. From IBM MQ Version 8.0 onwards, this applies to SVRCONN channels as well. Previously, the channel status for the SVRCONN channel type was reset if the channel initiator stopped while the channel was in STOPPED status.