Viewing The Event Log; Viewing Statistics - HP 2000fc Reference Manual

Viewing the Event Log

The system's event log contains important information about the status of the
system, virtual disks, and disk drives. Check it regularly to monitor the status of
your system. For information about viewing the event log and about specific events
and errors, see "Using Event Logs" on page 218.

Viewing Statistics

Viewing statistics can help you interpret performance based on configuration of an
individual element of your storage solution, such as FC HBA, iSCSI Ethernet
adapter, driver, SAN, or host operating system. The statistical information is useful
to profile applications and their usage of a virtual disk, which can be used to
determine if additional virtual disks would increase performance and what RAID
level fits your needs. You can analyze the performance of the same application
using different RAID levels to determine which level has the best performance. See
Appendix B for more details on RAID levels.
Note –
analyzing system performance. They are not intended for benchmarking purposes
but more so to accurately track your testing and to compare with benchmark testing.
The rate statistics and cumulative statistics pages update at 60-second intervals and
sampled rates become valid after two minutes. The real-time statistics page updates
at 2-second intervals. Thus, real-time statistics give you an instant look at system
performance, while rate and cumulative statistics average the performance numbers
over a longer period.
Statistics might not be accurate across events that alter virtual disks and volumes,
including additions, deletions, and component failures. After such events, or if you
are monitoring performance or changing how you are using volumes, you should
reset the statistics; see "Resetting Statistics" on page 177.
The statistics are provided as general information for your use when
Chapter 5 Monitoring System Status 171