Response times
Function
Time (in milliseconds) for replying from an external volume group when I/O accesses are made from the Hitachi Virtual Storage Platform G200, G400, G600 to the external volume group. The average response time in the period specified at Monitoring Term is displayed.
Items that can be monitored response times are ports, WWNs, LDEVs, parity groups, LUNs, and external storages (parity groups and LDEVs).
Storing period
Sample Interval can be specified from 1 to 15 minutes.
Selection of monitoring objects
Select the desired monitoring objects in the Performance Objects field.
|
Item on left side of Object field |
Item on right side of Object field |
Item on left side of Monitor Data field |
Item on right side of Monitor Data field |
|---|---|---|---|
|
Fibre Port* |
Target |
Response Time (ms) |
None |
|
Initiator |
Response Time (ms) |
None |
|
|
iSCSI Port* |
Target |
Response Time (ms) |
None |
|
WWN* |
WWN |
Response Time (ms) |
None |
|
Port |
Response Time (ms) |
None |
|
|
Logical Device* |
Base |
Response Time (ms) |
Total |
|
Read |
|||
|
Write |
|||
|
TC |
Initial Copy |
Response Time (ms) |
|
|
Update Copy |
Response Time (ms) |
||
|
Parity Group* |
None |
Response Time (ms) |
Total |
|
Read |
|||
|
Write |
|||
|
LUN* |
Base |
Response Time (ms) |
Total |
|
Read |
|||
|
Write |
|||
|
TC |
Initial Copy |
Response Time (ms) |
|
|
Update Copy |
Response Time (ms) |
||
|
External Storage |
Logical Device |
Response Time (ms) |
Total |
|
Read |
|||
|
Write |
|||
|
Parity Group |
Response Time (ms) |
Total |
|
|
Read |
|||
|
Write |
|||
|
Journal |
UR |
Master Journal |
Response Time (ms) |
|
Restore Journal |
Response Time (ms) |
||
|
Entire Storage System |
TC |
Initial Copy |
Response Time (ms) |
|
Update Copy |
Response Time (ms) |
||
|
UR |
Master Journal |
Response Time (ms) |
|
|
Restore Journal |
Response Time (ms) |
||
|
* Volumes that do not accept I/O from the host, such as pool-VOLs, are not monitored. |
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