HP XP P9000 Performance Advisor v6.0 Software Troubleshooting and FAQs Guide
performance data collection is initiated at 9:47 AM for a frequency of 5 minutes, the last collection
time stamp is updated only after the 5 minutes completes.
I have added a command device from SLPR1. Can I collect information through that command
device for LUNs presented through other SLPRs?
No. If you add a command device from SLPR1, that command device collects information only for
the LUNs presented through SLPR1. However, if you add a command device from SLPR0, it collects
data from all the LUNs presented through SLPR0. In addition, the command device also collects
data from LUNs presented through associated SLPRs, such as SLPR1, and SLPR2.
I've set the frequency of collection as 5, 10, and 15 minutes for DKC, port, and RAID groups. The
DKC time stamp is getting updated while I am observing that the port time stamp is not getting
updated. Why?
The last collection time stamp get updated based on the performance data collection frequency
set for each individual resource. Since the frequency set for DKC is 5 minutes, it appears first. The
last collection time stamp for port data collection gets updated only after 10 minutes duration.
Why did the Windows GUID on my management station change after I rebooted the management
station?
When the management station is rebooted, the command device configured as the Windows GUID
automatically stops collecting data, as it is no longer considered as the GUID that can interact with
HP XP P9000 Performance Advisor. In such a case, configure another command device as the
GUID or recreate the same command device that previously changed, and configure it as the
GUID. The Event Log and the PerformanceAdvisor.log contain similar messages as follows:
-----------------------------------------------------------------------------------------------------
PerformanceAdvisor: ERROR: Can't attach to command device: \\.\PHYSICALDRIVE65
One of the following may be the reasons:
*The device with GUID is formatted using Windows
*The command device switch is turned off accidentally
*Host cannot access the command device (Either security settings in the array allow the host to see the command
device or the SAN connectivity is lost)
In HP XP P9000 Performance Advisor, if the data collection interval is set to 5 minutes, will the
data point received be the average value in 5 minutes or just the value at the point of time, such
as the 10:00?
All the values in HP XP P9000 Performance Advisor that do not require any calculation are values
in point of time, such as the maximum and minium values. The average value will be over a
collection period.
HP XP P9000 Performance Advisor real-time charting
NOTE: The real-time charting feature is available in HP XP P9000 Performance Advisor from
v4.5 onwards. Therefore, the following FAQs are not applicable to HP XP P9000 Performance
Advisor versions prior to v4.5.
How is HP XP P9000 Performance Advisor real time charting different from HP XP P9000Watch?
Real-time chartingHP XP P9000Watch
Real-time data charting is integrated into HP XP P9000
Performance Advisor and applicable for the P9000 disk
HP XP P9000Watch can be installed and used only on a
HP XP P9000 Performance Advisor host agent. HP XP
arrays, such as the P9500 and for the following XP diskP9000Watch provides the metrics related to one or many
WWNs, each of which can be selected. array models: XP24000 and XP12000. It enables HP XP
The metrics display information related to CPU, RAID group,
port, Ldev and DKC without giving any direct association
P9000 Performance Advisor to collect performance data
for the above-mentioned array types through the associated
host agents. The collection frequency depends on the
between them. The minimum collection frequency is 10
number of components selected and the load on the XP or
seconds. HP XP P9000Watch allows you to monitor any
the P9000 disk array. For a minimum XP or P9000 disk
number of components and is applicable for all XP and
array configuration, the collection frequency can be as low
as five seconds.
P9000 disk arrays. You can use HP XP P9000Sketch to
view and also graphical representation of the data
obtained from HP XP P9000Watch.
62 Frequently Asked Questions