HP XP Racks - Manual (Page 368)

Recent Tier Utilization (monitoring period) table
Description Item
If a error occurs, a message appears. Header area
Displays the tier names: Tier1, Tier2, Tier3, and Total. Each column displays
information about the tier. Tier name
Displays the average number of I/Os on an hourly basis.* Average Number of I/O (per Hour)
* This field is updated when performance monitoring information is collected, asynchronously with Used Capacity
(Used %). If ? is displayed, take the actions displayed in the header area of the Recent Tier Utilization table. If an error
message and countermeasure are not shown in the header area of the Recent Tier Utilization table, refresh the window.
If ? continues to display, call the HP Technical Support.
Performance Graph
Description Item
Displays the performance graph of the entire pool or tiering policy. Performance graph
If the period mode of the monitoring mode is specified, this item appears. When
this check box is selected, the performance graph appears. The vertical scale Volume
of the performance graph indicates the average number of I/Os on an hourly
basis. The horizontal scale of the performance graph indicates the capacity.
If there is no monitor data, this item does not appear.
If the continuous mode of the monitoring mode is specified, this item appears.
When this check box is selected, the performance graph appears. The vertical Volume(Weighted average)
scale indicates the average number of I/Os on an hourly basis. The number of
I/Os is a weighted, averaged with the monitoring data from the past cycle
weighted against the monitoring data from the current cycle. The horizontal
scale indicates the capacity.
If there is no monitor data, this item does not appear.
Displays the performance graph of tier1. The vertical scale indicates the average
number of I/Os on an hourly basis. The horizontal scale indicates the capacity. Tier1
If there is no monitor data in tier1, this item does not appear.
Displays the performance graph of tier2. The vertical scale indicates the average
number of I/Os on an hourly basis. The horizontal scale indicates the capacity. Tier2
If there is no monitor data in tier2, this item does not appear.
Displays the performance graph of tier3. The vertical scale indicates the average
number of I/Os on an hourly basis. The horizontal scale indicates the capacity. Tier3
If there is no monitor data in tier3, this item does not appear.
Displays the range in tier1. Tier1 range
If there is no monitor data in tier1, this item does not appear.
Displays the range in tier2. Tier2 range
If there is no monitor data in tier2, this item does not appear.
The following describes how to read the performance graph when LDEV information is presented.
The vertical scale of the graph indicates an average number of I/Os by each hour and the horizontal
scale indicates a capacity, in GB, of the area where the I/Os are performed.
The two lines in the graph indicate tier 1 range and tier 2 range. These ranges are calculated
when the collection of performance monitoring data is complete (monitoring period is completed).
They show the boundary of each tier.
368 Thin Provisioning and Smart Tiers GUI reference