Viewing port summary – HP XP Performance Advisor Software User Manual
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Description
Screen elements
The sequential write utilization percentage for a RAID group.
% RGUtil SeqWrite
The sequential write parity utilization percentage for a RAID
group.
% RGUtil Seq Write Parity
The overall percentage utilization of a RAID group, which
is the sum of the random reads, random writes, random
Overall % RGUTIL
write parity, sequential reads, sequential writes, and the
sequential write parity.
Viewing port summary
To
view the summary of overall utilization of ports for an XP or an XP7 disk array, click Port
Summary
in the component selection tree for that XP or XP7 disk array. This feature totals the
LDEV
I/Os, LDEV MB/s, cache fast write, disk fast write, cache bypass, and backend transfer
values
for all of the LDEVs on a given port.
IMPORTANT:
When you request a port summary report, the total I/Os displayed may not be
equal to the sum of the I/Os across each of the ports. This can occur if multiple paths to an LDEV
exist. The port IO summary indicates the IO ceiling values across the ports. It does not indicate the
absolute or accurate I/O rates across the ports.
Click a CHP Port ID to view the associated performance graphs in the Chart Work Area. The port
type for the selected port ID is also displayed in the chart legends. For more information, see
.
Click Refresh when you want to view the updated port summary.
Figure 26 Port summary
Description
Screen elements
Displays the port ID for the CHP port. Provides the option
to view information associated with a particular port or with
all ports.
CHP Port ID
Displays the SLPR with which the RAID group is associated.
NOTE:
SLPR
does not exist in the XP7 disk arrays. So, the
SLPR-related
data is displayed only for the XP disk arrays.
SLPR
212
Viewing XP and XP7 disk array components