HP XPWatch and HP XPSketch Reference Guide
P-VOL S-VOL LDEV performance metrics............................................................................41
P-VOL S-VOL RAID Group performance metrics..................................................................41
P-VOL S-VOL CLPR performance metrics............................................................................42
P-VOL S-VOL Port performance metrics..............................................................................42
CA Journal Metrics.............................................................................................................43
JNL (Journal Group) metrics............................................................................................44
Journal LDEV metrics......................................................................................................45
Journal RAID Group metrics............................................................................................45
Journal CLPR metrics......................................................................................................45
Host Group metrics............................................................................................................45
Array Performance Metrics.............................................................................................47
Host Group performance metrics.....................................................................................47
Port performance metrics................................................................................................48
LDEV performance metrics..............................................................................................48
RAID group performance metrics.....................................................................................49
CPU performance metrics...............................................................................................50
DKC performance metrics...............................................................................................51
5 Introduction to HP XPSketch........................................................................52
Overview..............................................................................................................................52
6 Installing HP XPSketch...............................................................................53
Supported Windows platforms.................................................................................................53
Installing HP XPSketch.............................................................................................................53
7 Viewing performance metrics in HP XPSketch...............................................55
Loading the Comma separated file...........................................................................................55
Setting the Java heap size value...............................................................................................55
Viewing performance metrics in HP XPSketch..............................................................................56
Understanding performance metrics in HP XPSketch....................................................................58
8 Working with charts in HP XPSketch............................................................62
Viewing charts.......................................................................................................................62
Modifying chart properties.......................................................................................................62
Restoring auto range settings on the chart..................................................................................63
Saving and printing the chart...................................................................................................63
A HP XPWatch use case scenarios.................................................................64
Scenario 1: Port I/O spike.......................................................................................................64
Business case....................................................................................................................64
Objective..........................................................................................................................64
Resolution.........................................................................................................................64
Results..............................................................................................................................64
Scenario 2: Poor application response.......................................................................................64
Business case....................................................................................................................64
Objective..........................................................................................................................64
Resolution.........................................................................................................................64
Results..............................................................................................................................65
B Understanding write ratio in HP XPWatch....................................................66
C Relationship between LDEV I/O response time and Write ratio.......................67
D Comparing LDEV response time metrics in HP XP7 Performance Advisor and HP
XPWatch....................................................................................................68
Maximum values of LDEV response time in HP XP7 Performance Advisor and HP XPWatch...............68
Average values of LDEV response time in HP XP7 Performance Advisor and HP XPWatch.................68
Average read response time................................................................................................68
Average write response time................................................................................................68
4 Contents