HP Storage Essentials V5.1 Installation Guide First Edition (T4283-96025, August 2006)

Troubleshooting294
Unable to Find Elements on the Network
NOTE: This section only applies to Discovery from SE.
The management server uses ping to find the devices on the network enabled for IP. Ping is a
program that lets you verify that a particular IP address exists. Ping is not guaranteed to return a
response from all devices. If Discovery is not able to find a device automatically, enter the IP
address for the device on the Discovery Targets tab, which can be accessed by clicking the
Discovery button at the top of the screen in the management server. Sometimes ping cannot find the
device if one of the following conditions occur:
• Network configuration does not support ping, including data center security (firewalls).
• Device has the ping responder turned off.
• Device does not support ping.
Device Locking Mechanism for Brocade Element
Manager Query/Reconfiguration
Please keep in mind that the configuration for Brocade switches is locked while getting all details
for elements in a zones. The software ensures that each CIM query locks out any reconfiguration.
For example, if you are getting details for elements in all zones, you cannot add a new Brocade
switch while you are doing it (the discovery or configuration process waits until the collection of
details is finished before proceeding). However, simultaneous CIM queries do not lock each other
out.
A Discovered Sun StorEdge A5000 JBOD Does
Not Display Its WWN Properly
Although full monitoring and management support is available only to those devices for which
there is a provider, the software's topology displays other devices found on your storage area
network (SAN) to give you a more complete view. However, because these devices do not have a
provider, only basic information is returned. In some cases, as with the Sun StorEdge A5000 JBOD
(Just a Bunch of Disks), the Worldwide Name (WWN) presented and reported to the management
server may be different from the official WWN of the device, as the management server reports the
WWN of the port connected to the fabric.
Unable to Monitor McDATA Switches
McDATA switches use the Fibre Channel Switch Application Programming Interface (SWAPI) to
communicate with devices on the network. The McDATA switches allow only one SWAPI
connection at a time. For example, if the management server discovers the IP address of the
McDATA switch, other management servers and third-party software are not able to communicate
with the switch using SWAPI.
Use Enterprise Fabric Connectivity (EFC) Manager to communicate with the McDATA switch. EFC
Manager versions 7.0 and later can communicate with the management server and the switch. This
configuration lets multiple instances of the management server or other clients contact EFC
Manager, which in turn provides information about the switch. To communicate with the EFC