HP StorageWorks Reference Information Storage System V1.0 Administrator Guide (May 2004)

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Chapter 2: Persist Control Center PCC Views, Detailed Descriptions
2-16 HP StorageWorks Reference Information Storage System Administrator Guide, April 2004
Graph
Information
• Other graphs – a link to custom performance graphs of selectable
components
• 24-hour time bar – selectable time periods for the graph that is
displayed at the bottom of the window. You can select the Last 24
Hours or hourly periods expressed in 24-hour (military) format. The
selected period has a gray background. (All times are in the time
zone where the system is installed.)
• Select box – type of data that is displayed in the graph at the
bottom of the window.
– Appliance Rates shows the store rate (messages stored per
second), index rate (messages indexed per second) and indexer
latency growth (the store rate minus the index rate) over the
selected time period.
– Saved Queries shows the average wait time (after the query is
submitted until processing starts) and completion time (after
processing starts until all results are retrieved) of saved queries.
– Unsaved Queries shows the average wait time (after the query is
submitted until processing starts), first-page time (after the
query is submitted until the first page is displayed), and
completion time (after processing starts until the first batch, 500
or less, of results is retrieved) of unsaved queries.
• graph – a line graph showing the selected performance data for the
selected time period.
In a properly operating system, indexer latency growth is
zero on
average over time: zero means that stored data is being indexed as
fast as new data is being stored. A
positive value means indexing is
slower than storage. Even a small positive value that is maintained
over several days means that indexing is falling further and further
behind storage.
Negative values generally indicate indexing is
catching up on a backlog of documents: more stored messages are
being indexed than new messages are being stored.
Click another time period in the 24-hour time bar to update the
graph accordingly. For example, select 16 to display store and index
rates from 16:00 to 17:00, which is 4:00 pm to 5:00 pm.
Click the arrow in the Select box to select another data type and
update the graph accordingly.
Click Other Graphs to select and view detailed graphs of system and
component performance. You select the component, the metric, and
the time period. For example, you can choose to display the
minimum, maximum, and average performance of the TSC-NAT
machine from 5:00 pm to 6:00 pm on Jan. 26, 2003.
Table 2-11: System Status View Features (Continued)
Feature Description