Tier properties table, Recent tier utilization (monitoring period) table, Performance graph – HP XP Racks User Manual

Page 365

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Tier Properties table

Description

Item

Displays the pool name and ID.

Pool Name(ID)

Displays the tier names: Tier1, Tier2, Tier3, and Total. Each column displays
information about the tier.

Tier name

Displays the data drive type and RPM of tier.

Drive Type/RPM

If multiple types exist in a tier, Mixed is displayed. For an external volume, Drive
Type displays External Storage with the value of the external LDEV tier rank.

Displays the following buffer spaces.

Buffer Space

New page assignment: Buffer spaces for new page assignment.

Tier relocation: Buffer spaces for tier relocation.

Displays the total capacity of each tier and total capacity of the pool.

Total Capacity

Displays the percentage of the used capacity for the pool and each tier. The
field is updated asynchronously with the Recent Tier Utilization table and when

Used Capacity (Used %)

the View Tier Properties window is opened. The Used Capacity of each tier may
differ from the Total value.

Displays the used capacity size and percentage related to the tiering-policy of
the pool and each tier. This item displays when you make a Tiering Policy
selection.

Tiering Policy: tiering policy name

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 percentage of progress in performance utilization processing.

Performance Utilization

Displays the average number of I/Os on an hourly basis.*

Average Number of I/O (per Hour)

Displays the average number of I/Os for the pool and each tier that are related
to the tiering-policy. This item displays when you make a Tiering Policy selection.*

Tiering Policy: tiering policy name

* 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 Entire Pool and the period mode of the monitoring mode are specified, this
item appears. When this check box is selected, the performance graph appears.

Pool

The vertical scale 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 Entire Pool and the continuous mode of the monitoring mode are specified,
this item appears. When this check box is selected, the performance graph

Pool(Weighted average)

View Tier Properties window 365

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