HP XP P9500 Storage - Manual (Page 286)

Description Item
• Performance Utilization: Displays rate of the average used capacity while
the performance information is being collected.
3
•
Buffer Space (New page assignment/Tier relocation): Displays buffer spaces
for new page assignment and tier relocation of tier 3.
Notes:
1. If multiple types exist in a tier, Mixed is displayed. When the volume is the external volume, Drive Type displays
External Storage and the value of the external LDEV tier rank.
2. Capacity (Used/Total) is updated asynchronously with Performance Utilization. It is updated whenever the View
Tier Properties window is opened.
3. Performance Utilization is updated when the performance monitoring information is collected. It is updated
asynchronously with Capacity (Used/Total). If ? is displayed, take actions according to the instruction shown in
the footer of the performance graph. If an error message and the countermeasure are not shown in the footer of
the performance graph, refresh the window. If ? still appears, call HP Technical Support.
The following table describes the details of the performance graph when pool information is present.
Description Item
Displays the pool name and ID. Performance Graph (pool
name
(pool ID))
Select the object to display a graph. Object
Entire Pool: Displays the graph of the entire pool.
Tiering Policy: Displays the graph per tiering policy. Select the policy from the
tiering policy.
Select the level of the tier of which is displayed in the graph. If Entire Pool is
selected in the Object, this option appears dimmed. You can select All(0) or
from Level1(1) to Level31(31). Tiering Policy
Displays the performance graph. Performance Graph
Period Mode: The vertical scale indicates the average number of I/Os per hour.
The horizontal scale indicates the capacity.
Continuous Mode: The vertical scale indicates the average number of I/Os per
hour. The number of I/Os is calculated with the past cycle monitoring data
weighted to the current cycle monitoring data. The horizontal scale indicates the
capacity.
Displays the Tier1 range. Tier1 Range
Displays the Tier2 range. Tier2 Range
Used capacity of the each tiering
policy •
Tier 1: Displays the used capacity of the each tiering policy in the tier 1.
• Tier 2: Displays the used capacity of the each tiering policy in the tier 2.
•
Tier 3: Displays the used capacity of the each tiering policy in the tier 3
• Total: Displays the total used capacity of the each tiering policy in the tier 1,
tier 2 and tier 3.
Displays the start time and end time of the performance monitoring. Footer area
When acquisition of the performance graph fails, the Warning icon is
displayed along with an error message and solution. In the parentheses, an
error code is displayed.
286 Thin Provisioning Z and Smart Tiers Z GUI reference