Monitoring data
The following table lists the objects that can be monitored and specifies the data that is collected for each monitoring object. You can specify the objects that are displayed in the graphs in the Performance Objects in the Monitor Performance window. When the resource group feature is installed, you can specify the objects to be displayed in the graphs only when the resources that are shown in the necessary resources in the following table are allocated.
The monitoring data for each sampling interval is the average value of the data over the data sampling interval. The sampling interval is as follows:
- The sampling interval is 1 to 15 minutes.
The monitoring data shows the information by each resource ID even when the volume is in a virtual storage machine (not by virtual ID). For instructions on viewing the monitoring data, see Using the Performance Monitor data graphs.
|
Object of monitoring |
Monitoring data |
Necessary resources |
|
Controller |
Usage rates of MPs (%) |
None |
|
Cache |
Usage rates of cache (%) |
None |
|
Write pending rates (%) | ||
|
Fibre port |
Throughput (IOPS) |
Port |
|
Data transfer (Mbps) | ||
|
Response time (ms) | ||
|
iSCSI Port |
Throughput (IOPS) |
Port |
|
Data transfer (Mbps) | ||
|
Response time (ms) | ||
|
NAS platform (User LU) |
Throughput (IOPS) |
Port |
|
Data transfer (Mbps) | ||
|
Response time (ms) | ||
|
NAS platform (System LU) |
Throughput (IOPS) |
Port |
|
Data transfer (Mbps) | ||
|
Response time (ms) | ||
|
WWN |
Throughput of WWN (IOPS) |
Port |
|
Data transfer of WWN (Mbps) | ||
|
Response time of WWN (ms) | ||
|
Throughput of port (IOPS) | ||
|
Data transfer of port (Mbps) | ||
|
Response time of port (ms) | ||
|
LDEV (base) |
Total throughput (IOPS) |
LDEV |
|
Read throughput (IOPS) | ||
|
Write throughput (IOPS) | ||
|
Cache hit (%) | ||
|
Data transfer (Mbps) | ||
|
Response time (ms) | ||
|
Back transfer (count/sec) | ||
|
Drive usage rate (%)1 | ||
|
Drive access rate (%)1 | ||
|
ShadowImage usage rates (%)1,2 | ||
|
LDEV (UR) |
Write host I/O throughput (IOPS) |
LDEV |
|
Write host I/O data transfer (Mbps) | ||
|
Initial copy cache hit (%) | ||
|
Initial copy data transfer (Mbps) | ||
|
LDEV (TC/GAD) |
RIO (count) |
LDEV |
|
Pair Synchronized (%) | ||
|
Differential track (count) | ||
|
Initial copy throughput (count) | ||
|
Initial copy data transfer (Mbps) | ||
|
Initial copy response time (ms) | ||
|
Update copy throughput (count) | ||
|
Update copy data transfer (Mbps) | ||
|
Update copy response time (ms) | ||
|
Parity group |
Total throughput (IOPS) |
Parity group |
|
Read throughput (IOPS) | ||
|
Write throughput (IOPS) | ||
|
Cache hit (%) | ||
|
Data transfer (Mbps) | ||
|
Response time (ms) | ||
|
Back transfer (count/sec) | ||
|
Drive usage rate (%)1 | ||
|
LUN (base) |
Total throughput (IOPS) |
|
|
Read throughput (IOPS) | ||
|
Write throughput (IOPS) | ||
|
Cache hit (%) | ||
|
Data transfer (Mbps) | ||
|
Response time (ms) | ||
|
Back transfer (count/sec) | ||
|
LUN (UR)3 |
Write host I/O throughput (IOPS) |
|
|
Write host I/O data transfer (Mbps) | ||
|
Initial copy cache hit (%) | ||
|
Initial copy data transfer (Mbps) | ||
|
LUN (TC/GAD)3 |
RIO (count) |
|
|
Pair Synchronized (%) | ||
|
Differential track (count) | ||
|
Initial copy throughput (count) | ||
|
Initial copy data transfer (Mbps) | ||
|
Initial copy response time (ms) | ||
|
Update copy throughput (count) | ||
|
Update copy data transfer (Mbps) | ||
|
Update copy response time (ms) | ||
|
External storage |
Data transfer between the storage system and external storage per logical device (Mbps) |
LDEV |
|
Response time between the storage system and external storage per logical device (ms) | ||
|
Data transfer between the storage system and external storage per external volume group (Mbps) |
Parity group | |
|
Response time between the storage system and external storage per external volume group (ms) | ||
|
Entire storage system (TC/GAD) |
RIO (count) |
None |
|
Pair Synchronized (%) | ||
|
Differential track (count) | ||
|
Initial copy throughput (count) | ||
|
Initial copy data transfer (Mbps) | ||
|
Initial copy response time (ms) | ||
|
Update copy throughput (count) | ||
|
Update copy data transfer (Mbps) | ||
|
Update copy response time (ms) | ||
|
Journal (UR) |
Write host I/O throughput (IOPS) |
None |
|
Write host I/O data transfer (Mbps) | ||
|
Initial copy cache hit (%) | ||
|
Initial copy data transfer (Mbps) | ||
|
Master journal throughput (IOPS) | ||
|
Master journal journal (count/sec) | ||
|
Master journal data transfer (Mbps) | ||
|
Master journal response time (ms) | ||
|
Master journal usage data (%) | ||
|
Master journal metadata usage rate (%) | ||
|
Restore journal throughput (IOPS) | ||
|
Restore journal journal (count/sec) | ||
|
Restore journal data transfer (Mbps) | ||
|
Restore journal response time (ms) | ||
|
Restore journal usage data (%) | ||
|
Restore journal metadata usage rate (%) | ||
|
Entire storage system (UR/URz) |
Write host I/O throughput (IOPS) |
None |
|
Write host I/O data transfer (Mbps) | ||
|
Initial copy cache hit (%) | ||
|
Initial copy data transfer (Mbps) | ||
|
Master journal throughput (IOPS) | ||
|
Master journal journal (count/sec) | ||
|
Master journal data transfer (Mbps) | ||
|
Master journal response time (ms) | ||
|
Restore journal throughput (IOPS) | ||
|
Restore journal journal (count/sec) | ||
|
Restore journal data transfer (Mbps) | ||
|
Restore journal response time (ms) | ||
|
Note:
| ||