HP Storage Essentials SRM 6.0 User Guide for Enterprise Edition and Standard Edition SRM Software (July 2008)

HP Storage Essentials SRM 6.0 User Guide 411
Managing Late Data or Errors
If you are performing real time data collection, and the element is not returning the information in
time, you are shown a message in red resembling the following:
Data is late or an error occurred...
The software cannot obtain the information in a timely manner because of one or more of the
following:
• The element might be inherently slow.
• The element might be busy with other tasks.
• You are trying to collect too much information at once from the element.
• The specific element is already being monitored in real time on another chart.
If you think you might be trying to collect too much information from the element, you might want to
narrow down the collection. For example, if you are trying to collect monitoring information for three
disk drives on a server, you might want to try collecting information for one disk drive.
Performance Manager will continue to attempt to retrieve data from the element until the chart is
closed.
Monitoring with Direct Attached Storage
A port on a storage system that is directly attached to a host does not appear in the left panel for
monitoring. If you want to monitor the port, connect the port to a switch.
Supported Host Configurations for Monitoring
Table 57 on page 412 describes which host configurations the management server can monitor.
The management server supports configurations that have a Y next to them. Unsupported
configurations have an N next to them.
NOTE: If a configuration listed in the following table is not supported, you can still obtain
processor and memory statistics from the host. The exception, however, is Windows NT 4, which
does not provide any monitoring information to the management server.
If the host has several configurations listed in the following table and one of them cannot be
monitored, monitoring is not supported for any of the configurations on the host. For example,
assume you have a host with Solaris 9 Sun Foundation Suite Leadville with MPXIO and Solstice
Disksuite/Volume Manager. Even though the management server supports monitoring for Solstice
Disksuite/Volume Manager, neither of those devices can be monitored, because Solaris 9 Sun
Foundation Suite Leadville with MPXIO is not supported, as shown with the following formula:
A monitorable configuration (Y) + an unmonitorable configuration (N)=
unmonitorable configuration (N)
Keep in mind the following:
• In all configurations, you cannot monitor a VCM database device.