8x00 Enterprise Virtual Array Updating Product Software Guide XCS 6.110 (5697-6782, June 2007)

Displaying EVA p

erformance data using Windows Performance Monitor

An alternative

for capturing and d isplaying EVA performance metrics is Windows Performance Monitor.

This tools prov

ides a graphical presentation that you may ﬁnd more useful for analyzing EVA performance

data. See the HP

StorageWorks Comma nd View EVA user guide for more information about using

Windows Perfo

rmance Monitor.

Figure 8 Windows Performance Monitor dis p lay

Managing host I/O timeouts for an online upgrade

The default values for host operating parameters such as LUN timeout and queue depth are typically set

to values that ensure proper operation with the storage system. These values are appropriate for most

storage system operations, including online ﬁrmware upgrades. In general, host LUN tim eouts of 60

seconds or more are adequate to accommodate an online upgrade. In m ost situations it will not be

necessary to alter these settings to perform an online ﬁrmwar e upgrade.

If any host tim eout values have been decreased to less than 60 seconds, it will be necessary to reset

them to their original default value. The following section provide a summar y of the steps and commands

involved in checking and changing timeout values for each supported operating system. See the

operating system documentation for more information.

NOTE:

Unless otherwise noted, cluster testing with online controller ﬁrmware upgrades has not been completed.

Cluster information will be added to this document when the testing is complete.

Microsoft Windows

NOTE:

• Ensure that MPIO is installed and both paths are active and have access to the array.

• Boot devices are supported with online controller ﬁrmware upgrades.

Pre-upgrade tasks