HP XP P9500 Storage - Manual (Page 101)

Remote copy by Cnt Ac-J and Cnt Ac-J Z (at volumes controlled by a particular CU)
The following table shows the file names and types of information in the Usage Monitor tab in the
Cnt Ac-J and Cnt Ac-J Z window that can be exported to files using the Export Tool. These files
contain statistics about remote copy operations (at volumes controlled by a particular CU) by
Continuous Access Journal and Continuous Access Journal Z.
Table 23 Files with statistics about remote copy operations by Cnt Ac-J and Cnt Ac-J Z (at Volumes
controlled by a particular CU)
Data saved in the file CSV file ZIP file
The number of read I/Os per second URLDEV_Read_Record_xx.csv URLDEV_Read_Record.zip
The number of read hit records per
second URLDEV_Read_Hit_xx.csv URLDEV_Read_Hit.zip
The number of write I/Os per second URLDEV_Write_Record_xx.csv URLDEV_Write_Record.zip
The number of write hit records per
second URLDEV_Write_Hit_xx.csv URLDEV_Write_Hit.zip
The amount of data that are read per
second (KB/sec) URLDEV_Read_Transfer_xx.csv URLDEV_Read_Transfer.zip
The amount of data that are written per
second (KB/sec) URLDEV_Write_Transfer_xx.csv URLDEV_Write_Transfer.zip
The initial copy hit rate (percent) URLDEV_Initial_Copy_Hit_xx.csv URLDEV_Initial_Copy_Hit.zip
The average transfer rate (KB/sec) for
initial copy operations URLDEV_Initial_Copy_Transfer_xx.csv URLDEV_Initial_Copy_Transfer.zip
Note: The letters "xx" in CSV filenames indicate a CU image number. For example, if the filename is
URLDEV_Read_Record_10.csv
, the file contains the number of read I/Os (per second) of the volumes controlled
by the CU whose image number is 10.
Causes of Invalid Monitoring Data
If the value of monitoring data in CSV files is less than 0 (zero), consider the following causes:
Probable causes Invalid values of monitoring
data
The value "-1" indicates that Performance Monitor failed to obtain monitoring data.
Probable reasons are: The monitoring data in the CSV
file includes "-1."
•
Performance Monitor attempted to obtain statistics when an operation for rebooting
the disk array is in progress.
• Performance Monitor attempted to obtain statistics when a heavy workload is
imposed on the disk array.
•
There is no volume in a parity group.
•
Just after the CUs to be monitored were added, the Export Tool failed to save files
that contain monitoring data for all volumes or journal volumes used by remote
copy software (i.e., Continuous Access Synchronous, Continuous Access
Synchronous Z, Continuous Access Journal, or Continuous Access Journal Z). For
details about the files, see
Table 17 (page 96) , Table 20 (page 99) , and
Table 21 (page 99) .
•
If Disable is selected to stop monitoring in the Monitoring Switch field on the
Monitoring Options window and longrange is specified as the gathering interval,
Causes of Invalid Monitoring Data 101