User guide

146 Troubleshooting
Symptom Reason Solution
Consistently occurring
time out errors when the
browser window is open.
Host HBA parameter
settings are not config-
ured for best perform-
ance optimization.
Access your Host HBA settings and make the
following changes:
Execution Throttle
Improve general I/O performance by allowing
more commands on the fibre bus. Do this by
changing your host bus adapter’s execution
throttle parameter to 256.
Scatter/Gather (Microsoft Windows)
Increase the general I/O performance by
allowing larger data transfers. Do this by
editing the “MaximumSGList” parameter in
the register.
The recommended hexadecimal value is “ff”.
The path is: HKEY_LOCAL_MACHINE/System/
CurrentControlSet/Services/<name of HBA
driver>/Parameters/Device/.
Shared Memory Error is
displayed.
The CGI script manager
may have not released
a segment of shared
memory.
This may occur when heavy I/O is happening
at the same time you are accessing StorView.
If this occurs you will need to stop and then
restart the StorView Server service.
After switching drives
and/or controllers from
one storage solution
enclosure to another, one
of the solutions reports
that the storage solution
is being monitored by
another host.
Multiple Configuration
WWNs being used.
If you have been interchanging config
-
ured drives or controllers between storage
solutions you may have a situation where
multiple solutions are now sharing the same
Configuration WWN. This can be corrected
by changing the Configuration WWN value
found in the Controller Parameters on either
of the storage solutions. After making this
change, all participating host systems will
require a reboot, see ”Controller Environ
-
mentals” beginning on page 71.