IOPS on a device using Automated Storage Tiering can be checked from an access status chart. The access status data is displayed as a graph of FTRPE where the IOPS values are sorted in descending order.
Refer to "Operations for Automated Storage Tiering" in "Operations for Dashboard" in the ETERNUS SF Web Console Guide for information on how to display access status chart.
Note
Graph data of the access status chart is created at the following moments:
For one layer Tier pools
At 2:00 after Automated Storage Tiering starts. (The time listed on the left or later is an interval of IOPS calculation period.)
For multiple layer Tier pools
Upon completion of the evaluation of Automated Storage Tiering.
However, no data of the access status chart is displayed for the following cases:
If data has never been created.
If no access status data exists in the IOPS calculation period or evaluation period.
Since the access status chart displays only the data of an I/O generated area, the maximum capacity value on the horizontal axis may not agree with the used capacity in a pool or FTV.
