Xian NMS and Data Server components are in charge of receiving and
processing all the rule’s alerts and performance data information. The
NMS obtains all the data from the devices, then processes it and finally
sends the information to the data server, which receives the
information from all the NMS associated to it and store the information
in the Xian database.
In Xian 2005 Network Manager build 2.1.20.104 and previous, when
there is a lot of information arriving to the data server, such as
performance data from many rules applied to many interfaces. In this
case the data server creates a queue in memory because it can not
handle the information as fast as it arrives, so depending on the
amount of data, the queue consumes large amounts of memory
causing eventually the whole system to collapse due to a memory
leak.
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Jalasoft Xian Network Manager 2005 SP1 has the possibility to add new plugins
to its environment allowing users to monitor other devices such as
NetScaler switches, 3Com switches, Solaris servers and new plug-ins that are
not included in this release version of Xian Network Manager. This document
will cover the plug-in requirements, installation and un-installation process.
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When you launch rules configured to collect performance data over
any device on the Xian console, this data is never shown on the MOM
2005 operator console under the performance view.
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Xian Network Manager can not execute queries to the database
because the DB manager is configured in a case sensitive mode, which
means that it makes a difference between lowercase and uppercase
sentences. This causes the queries performed on it to refer to the
database objects exactly as they are named. The problem which is
created is then that the Xian Data Server executes queries to the
database in a non sensitive mode and some tables and table elements
are not reached. Finally, the Xian console can not be opened because
it depends on the Data Server.
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If you have installed Xian 2005 Network Manager build 2.1.13.97 or
earlier, and then you migrate this environment to Xian SP1, the migrated
Network Scan Tasks do not discover any Linux agent.
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The Xian 2005 Network Manager SMP for UNIX Server (Linux and Solaris) monitors
the most critical components from the computer such as the CPU load, system
uptime, file system usage and interface traffic among other features. Additionally, it
is critical to monitor the state and performance of the most critical and important
processes running on the UNIX Server. To provide a solution for this, Xian 2005
Network Manager SP2 implements the UNIX Server process monitoring feature.
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Jalasoft Xian Network Manager 2005 provides a stable architecture and
functionality for network devices and UNIX Servers monitoring. However, the
success of the product is based on the capability of monitoring the network
infrastructure 24 hours, 7 days a week. Even if a Xian component goes down,
Xian must still work and monitor properly the network. It is for this reason
that Xian Network Manager 2005 implements the NMS failover mechanism
feature.
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The Cisco Router 4700 sub interfaces have problems with the Xian
rules that obtain information from these interfaces; this causes Xian to
give error messages in MOM.
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When you open the Xian console you see that all the rules are on the
‘pending to start’ state and never change from that state. Additionally, if you
launch another rule, this rule also goes to the ‘pending to start’ state.
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After installing Xian Network Manager, on a machine under a single
installation or on different servers under a distributed installation, you
start discovering devices and launching rules over them, but there are
no alerts or performance counters which arrive to MOM 2005.
Additionally, no exception is generated indicating an error.
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After several tries the Linux box can not be discovered by Xian Network Manager Io.
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When an add device rule is executed in order to discover a Cisco Catalyst 2950G
or 2970G switch, the rule abruptly stops and no device is added to the console.
Additionally, an error message is shown on the alerts tab on the Xian console
indicating an unknown exception occurred.
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When an add device rule is executed in order to discover a Cisco
Catalyst 3750 switch, it stops and no device is recognized.
Additionally, an error message is shown on the alerts tab on the Xian
console indicating an unknown exception occurred.
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There is no information showing up in Xian Network Manager from the
APC UPS. After running the add device rule it raises an alerts that
says:
If it is not possible to retrieve device information, please verify:
- That the device is up.
- SNMP is enabled.
- That SNMP connectivity exists to the device.
- The provided community string is correct.
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The ‘Device Availability’ rule monitors if a certain device is available or
not, e.g. if it is possible to obtain SNMP information or if there is ICMP
connectivity to the device. When the device is not accessible, this rule
disables all the rules that are monitoring the device until the device is
available again. By default, this rule is disabled on the Xian 2005
Network Manager console.
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