Buffer details – H3C Technologies H3C Intelligent Management Center User Manual

Page 251

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thresholds or custom thresholds. For information about setting the thresholds, see "

6

Configuration management

."

{

History Record—Click the History Record icon

to view the history graph of the connection

time trend. Point to a spot on the curve to view the connection time at the specific time point.
Authorized users can view the connection time statistics over the last 1 hour, last 6 hours, today,

yesterday, this week, this month, and this year by clicking the corresponding icons on the upper

right of the graph.

Buffer Details

The Buffer Details area layout is shown in

Figure 187

.

Figure 187 Buffer Details area layout

Buffer Details area fields:

Cache Hit Ratio trend graph—Shows the changes of the cache hit ratio over the last 1 hour in a line
chart. Point to a spot on the curve to view the cache hit ratio at the specific time point. To change
the report period, click the Last 1 Hour icon

on the upper right of the graph, and then select an

icon from the list. Available options include Last 6 Hours

, Today

, Yesterday

, This Week

,

This Month

, and This Year

.

Attribute/Value—Monitor index name and data that was obtained when APM last polled the SQL
Server.

{

Cache Hit Ratio—How often the required data has been found in the cache.

{

Cache Objects in use—Number of cache objects that were in use.

{

Cache Object Counts—Number of cache objects in the cache.

{

Cache Pages—Number of the pages that the cache objects were using. The size of each page
is 8K.

{

Set Threshold—Click the Set Threshold icon

to set alarm thresholds for the cache hit ratio.

The specified alarm thresholds appear on the Cache Hit Ratio trend graph as dotted lines. The
data is highlighted in orange when the cache hit ratio reaches the level-1 threshold, and is

highlighted in red when the cache hit ratio reaches the level-2 threshold. Use the global

thresholds or custom thresholds. For information about setting the thresholds, see "

6

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