The CHANNEL-IO monitoring program provides precise information on the channel load. For each channel to be monitored, it returns the number of I/O operations for PAM block transfer, byte transfer, and without data transfer (NODATA). In addition, it indicates the volume of data transferred for PAM block and byte transfer.
The monitoring program is started for all channels when the SM2 subsystem is started.
/390 servers
Channels are always output as type FC (FibreChannel).x86 servers
The FibreChannel peripherals with BS2000 are operated by emulating the devices in X2000 as bus peripherals. The bus periphery is specified as type BUS in SM2.The real, physical FibreChannels can be different from the channels that are visible for the BS2000 operating system (and for SM2).
The SM2 channel-specific measurement data is not meaningful. If summation values are formed for all channels, valid values are still obtained.
Further information to the measurement values is in section "CHANNEL report".