A VARY command was issued for a switch device. The device support code attempted to validate that the correct control unit model and type are indicated in the data returned by the SENSE-ID command.
The VARY command fails. If VARY ddd,ONLINE was issued, the devices remain offline. If VARY PATH(dddd,cc),ONLINE was issued, the device path remains offline.
Make sure that the operating system and channel subsystem are using the correct I/O configuration definition. DISPLAY IOS,CONFIG displays the currently active IODF (I/O definition file) and currently active I/O configuration for the channel subsystem. The MVS™ ACTIVATE command can be used to dynamically switch to the correct I/O configuration definition. Then the VARY command should be retried.
Correct the configuration error and retry the VARY command. Configuration errors can be corrected dynamically by updating the I/O configuration definition with the HCD (hardware configuration definition) and issuing the MVS ACTIVATE command.
ESCON® Director Device Support (EDDS)
IRDVDSE