Appendix A. Performance data and statistics gathering 745
2       node2     cloud_down_mb      0            0         181101214226
2       node2     cloud_down_ms      0            0         181101214226
2       node2     iser_mb            0            0         181101214226
2       node2     iser_io            0            0         181101214226
Example A-4 on page 744 shows statistics for the two nodes members of system ITSO-V7k. 
For each node, the following columns are displayed:
/SM590000stat_name: The name of the statistic field
/SM590000stat_current: The current value of the statistic field
/SM590000stat_peak: The peak value of the statistic field in the last 5 minutes
/SM590000stat_peak_time: The time that the peak occurred
The lsnodecanisterstats command can also be used with a node canister name or ID as an 
argument. For example, you can enter the command lsnodecanisterstats node1 to display 
the statistics of node name node1 only.
The lssystemstats command lists the same set of statistics that is listed with the 
lsnodecanisterstats command, but representing all nodes in the cluster. The values for 
these statistics are calculated from the node statistics values in the following way:
/SM590000Bandwidth: Sum of bandwidth of all nodes
/SM590000Latency: Average latency for the cluster, which is calculated by using data from the whole 
cluster, not an average of the single node values
/SM590000IOPS: Total IOPS of all nodes
/SM590000CPU percentage: Average CPU percentage of all nodes
Example A-5 shows the resulting output of the lssystemstats command. 
Example A-5   The lssystemstats command output
IBM_Storwize:ITSO-V7k:superuser>lssystemstats
stat_name          stat_current stat_peak stat_peak_time
compression_cpu_pc 14           14        181101215930
cpu_pc             2            2         181101215930
fc_mb              0            0         181101215930
fc_io              10           10        181101215930
sas_mb             726          778       181101215445
sas_io             2879         3080      181101215845
iscsi_mb           0            0         181101215930
iscsi_io           0            0         181101215930
write_cache_pc     13           14        181101215745
total_cache_pc     79           80        181101215925
vdisk_mb           0            0         181101215930
vdisk_io           0            0         181101215930
vdisk_ms           0            0         181101215930
mdisk_mb           1            2         181101215920
mdisk_io           2            4         181101215900
mdisk_ms           6            7         181101215720
drive_mb           727          778       181101215445
drive_io           2877         3075      181101215445
drive_ms           11           13        181101215855
vdisk_r_mb         0            0         181101215930
vdisk_r_io         0            0         181101215930
vdisk_r_ms         0            0         181101215930
vdisk_w_mb         0            0         181101215930