HP LH4r HP NetServer FCArray Assistant - Installation and User Guide - Page 115

Performance Monitoring

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Chapter 5 Monitoring • Indicates the logical and physical size of the logical drive. • Indicates the stripe size and cache line size in use by the logical drive. • Indicates if the write back cache is enabled or disabled. • Indicates the operational status of the logical drive. • Indicates the amount of capacity held by this logical drive (shown in a bar graph) out of the total amount of capacity configured on the controller. 1. If write back cache is disabled, click the Enable Write Cache button to enable the cache. 2. If write back cache is enabled, click the Disable Write Cache button to disable the cache (and use write-through caching). 3. If the Consistency Check button is enabled, you may manually run a consistency check on this logical drive (as described in the Chapter 6). 4. Click Show Bad Data Blocks to display a window of all bad data blocks found on this logical drive. 5. Click the Close button to close the dialog box. Performance Monitoring Performance is monitored using the Statistics View dialog box. This measures RAID controller performance using operations such as Reads, Writes, % Reads, % Writes, Cache Hits, etc. A flexible settings page lets you choose which controllers, targets, and operations to monitor. Past and present data can be viewed as a line graph, pie graph, or bar graph. Settings can be saved and opened, and statistical data can be captured, saved, and displayed. Statistics View The Statistics View dialog box is opened from the View menu or its icon as shown in Figure 5-14. 109

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Chapter 5
Monitoring
109
•
Indicates the logical and physical size of the logical drive.
•
Indicates the stripe size and cache line size in use by the logical drive.
•
Indicates if the write back cache is enabled or disabled.
•
Indicates the operational status of the logical drive.
•
Indicates the amount of capacity held by this logical drive (shown in a bar
graph) out of the total amount of capacity configured on the controller.
1.
If write back cache is disabled, click the
Enable Write Cache
button to
enable the cache.
2.
If write back cache is enabled, click the
Disable Write Cache
button to
disable the cache (and use write-through caching).
3.
If the
Consistency Check
button is enabled, you may manually run a
consistency check on this logical drive (as described in the Chapter 6).
4.
Click
Show Bad Data Blocks
to display a window of all bad data blocks
found on this logical drive.
5.
Click the
Close
button to close the dialog box.
Performance Monitoring
Performance is monitored using the Statistics View dialog box. This measures
RAID controller performance using operations such as Reads, Writes, % Reads,
% Writes, Cache Hits, etc. A flexible settings page lets you choose which
controllers, targets, and operations to monitor. Past and present data can be
viewed as a line graph, pie graph, or bar graph. Settings can be saved and opened,
and statistical data can be captured, saved, and displayed.
Statistics View
The Statistics View dialog box is opened from the View menu or its icon as
shown in Figure 5-14.