The volumes subject to automatic tuning are the FTVs that satisfy all of the following conditions. With respect to FTVs that fall under the following, bandwidths will be adjusted according to whether target values have been configured and the achievement status thereof.
The performance management function is in a started state
The FTV is a volume subject to the performance management function
The license for this function (refer to "6.2 License Registration") has been registered
The FTV is a volume displayed in the correlation management
The FTV is a volume that belongs to a storage device with which the Automated QoS is "Active"
The above status can be confirmed with the Web Console. Refer to the following sections in the ETERNUS SF Web Console Guide for information on how to confirm each item.
Confirmation of the registration status of the subject device:
"Display ETERNUS Disk Storage System"
Confirmation of whether the performance administration function is in a started state:
"Display Performance Monitoring Status" listed under "Operations for Performance Management of Storage Device"
Confirmation of the registration status of the license:
"Display License"
Confirmation of host affinity settings:
"Display Host Affinity"
Confirmation of activation of Automated QoS:
From the list of storages that are displayed after clicking Storage on the global navigation tab, the Main pane that is displayed when clicking a storage name
Furthermore, when the performance management function of the switches connecting the subject volumes and the servers are not in a started state, although the automatic performance adjustment of the subject volumes will be executed, only the contending volumes in regard to the CM and pool will be subject to the performance adjustment.
Refer to "Display FC Switch List" in the ETERNUS SF Web Console Guide for information on how to confirm the status of the performance management function of switches.
A example of the affected range of automatic tuning is as follows (corresponding to the numbers in the figure):
Only the FTV of the volumes subject to performance management will be subject to bandwidth adjustment.
The volumes other than those subject to performance management will not be subject to bandwidth adjustment.
Figure 6.2 Example of Subject Volumes
