Viewing 10 busiest ldevs and raid groups, 10 busiest ldevs/raid – HP XP Performance Advisor Software User Manual
Page 209
Related Topics
•
“Viewing performance summary” (page 177)
•
“Viewing CHIP/CHA data” (page 185)
•
“Viewing ACP/DKA data” (page 189)
•
“Utilization Summary” (page 183)
•
“10 busiest LDEVs/RAID groups” (page 209)
•
“RAID Group summary” (page 210)
•
•
“Viewing LDEV data” (page 214)
Viewing 10 busiest LDEVs and RAID groups
To
view the 10 busiest LDEVs and RAID groups associated with an XP or an XP7 disk array's
backend
activities, click BackEndIO in the component selection tree for the XP/XP7 disk array.
The
top 10 busiest LDEVs are displayed under the LDEV tab and the top 10 busiest RAID groups
are
displayed under the RG (RAID Group) tab. This data is also displayed when you click the
Backend
Total Avg group box under the Performance View tab.
If the number of busiest LDEVs or RAID groups are less than ten or if their utilization is zero, only
the busiest components are displayed. The 10 busiest LDEVs selected is based on the backend
transfer rate and the 10 busiest RAID groups selected is based on the Overall % RAID Group
Utilization.
IMPORTANT:
•
If the LDEV is a LUSE Master, the details of individual LDEVs are considered for the busiest
components and not the sum of all the individual LDEVs.
The LDEV response time components, AVERAGE READ RESPONSE, MAXIMUM READ RESPONSE,
AVERAGE WRITE RESPONSE, and MAXIMUM WRITE RESPONSE, are measured in milliseconds.
Click an LDEV ID or RAID group name to view the performance graphs for all the associated metrics
in a chart window. To know more about charts, see
Figure 23 10 busiest backend LDEVs
Viewing 10 busiest LDEVs and RAID groups 209