Hitachi TrueCopy for z/OS user guide (December 2005)
TrueCopy for z/OS user guide 105
3. Click OK.
Other methods of closing the graph:
• Select another tab.
• Select another program product or exit Command View XP or XP Remote Web Console.
• Select Stop in the Operation box of the Usage Monitor window and click Apply.
The following table lists and describes the I/O statistics that can be selected on the Monitor Data box of
the Display Item window.
Table 20 I/O statistics
Statistic Description
RIO count
All RIO count Total number of remote I/Os
All read count Total number of remote read I/Os
All write count Total number of remote write I/Os
Initial Copy
Initial copy RIO count Number of initial copy remote I/Os
Initial copy hit count Number of initial copy hits
Average transfer rate (KB/S) Average transfer rate (KB/sec) for initial copy remote I/Os
Average response (ms) Average response time (msec) for initial copy remote I/Os
Migration Copy
Migration copy RIO count Number of migration copy remote I/Os
Migration copy hit count Number of migration copy hits
Update Copy
Update copy RIO count Number of update copy remote I/Os
Update copy hit count Number of update copy hits
Average transfer rate (KB/S) Average transfer rate (KB/sec) for update copy remote I/Os
Average response (ms) Average response time (msec) for update copy remote I/Os
Restore Copy
Restore copy RIO count Number of restore copy remote I/Os
Restore copy hit count Number of restore copy hits
Async. Copy
Async. RIO count Number of asynchronous update copy remote I/Os
Total number of recordsets Number of TC390A recordsets
RCU command retries Number of command retries due to RCU channel-command-retry
messages.
MCU command retries Number of command retries due to MCU SCP messages.
Average transfer rate (kB/sec) Average transfer rate (kB/sec) for TC390/TC async update copy remote
I/Os
Average RIO response (ms) (Total RIO process time on a subsystem or selected volume for a certain
interval period) / (Asynchronous RIO count); where RIO process time =
time between the asynchronous data transfer request and the actual
transfer of the recordset(s) to the RCU.