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Proactive
Monitoring of Your Network
Technology
by Trey James,
President/CEO of Xcentric (November 20, 2004)
Overview
With the ever increasing pace of technology
advancements and requirements, it is important that we identify failure
symptoms on the network before they develop into mature issues
that create downtime and lost productivity. The average network today
involves three or more servers, multiple switches and printers, and at
least one firewall. Without automated monitoring and management systems,
it is nearly impossible for an IT manager to have global insight into
all that is occurring on their network.
Event logs
On a regular basis, the IT manager should review
the event logs on all servers. The event logs are designed to catch all
of the errors that show up on the screen when something goes wrong, but
they also catch all of the errors that never get displayed to the user.
Each server has its own logs for security, applications, and system.
The Security log records audited logins and permissions related events.
It can be configured to monitor successful and/or failed attempts and
provides basic info such as username, domain name, and login type. The
Application log provides insight into application related events that
point to file locations, failed services, and program start-ups and
shut-downs. The System log deals more with network and OS level event
reporting. DHCP, WINS, DNS, and TCPIP related errors are all logged.
Each of these logs should be reviewed to identify the ongoing issues on
the network. To view a workstation or server Event Viewer,
right-click on My Computer and select Manage.
Internet Security log
Internet security has become a primary concern of
most firms today. With the threat of autonomous hacking systems and
vulnerabilities in all of the various systems that are deployed within a
firm, proactively monitoring and eliminating threats is critical.
Security management requires special competencies and experience.
Identifying that attacks have been made on your system is fairly
straight forward – knowing how to mitigate those vulnerabilities is
where specialized knowledge of protocols and firewall management is
required.
Resource management
Often times the discovery of low drive-space comes
from receiving system errors that state that there is not enough free
space to perform a certain action. Ideally, we would be able to trend
drive space utilization so that we can budget time for maintenance and
funds for drive additions. Manually trending drive, memory, and
processor utilization is very difficult and is rarely done well. This is
because IT managers have limited time to be proactive and the volume of
information that must be recorded to properly report trending can be
overwhelming.
Asset management
Most accounting firms have difficulty keeping an
accurate inventory of their technologies. Keeping metrics on workstation
models/types, operating system versions, hard drive sizes, amount of
RAM, etc. is very hard to track manually. All of this information must
be considered when preparing IT budgets or when allocating equipment to
new staff.
Proactive management and monitoring
Effectively monitoring all event logs, managing
firewall security configurations, managing the availability of resources
and assets is a key component of any firm’s overall IT management plan.
Utilizing automated systems to assist in performing the actions will
minimize the amount of time IT managers must spend to stay on top of
these areas. Below is a list of features that should be evaluated when
selecting a monitoring product.
Support for IP
enabled devices
Most monitoring products can gather metrics on and
IP-enabled device on the network; however, some systems are built with
manufacturer biases and dependencies. As an example, Dell OpenManage
works best with Dell servers due to the fact that Dell builds
Dell-specific drivers for their servers to facilitate management and
monitoring of their server hardware. When used with non-Dell systems,
functionality is limited. The same is true for HP OpenView and other
products released by server manufacturers.
Alert
notification
The ability to set and measure thresholds for free
drive-space, RAM, processor utilization and bandwidth is a key component
to most monitoring systems. The monitoring system should alert IT staff
when any system goes off-line unexpectedly or when it meets or exceeds
any defined threshold. With alerts, we have the ability to know before a
server runs out of disk space or when a tape backup fails. Alerts should
be available via email, pager, and /or text message.
Service
monitoring
On Microsoft Windows servers, applications that run
at the operating system level are called “services.” Such services are
designed to run databases, handle email, and provide workstation
connectivity, among other things. When these services fail or take an
extraordinary amount of time to respond, proactively restarting the
service can often times resolve issues before users on the network are
affected.
Asset inventory
Inventory can be collected at regular user-defined
intervals to ensure that the firm always has access to up-to-date asset
inventory information. When evaluating monitoring systems, the inventory
features include the following: auto-discovery and updating, detailed
asset reports with listing for all hardware (including CPUs, memory, and
drives). It should also include reporting of installed software and
patch information, as well as OS info with version number and service
pack build.
Reporting
Performance reports should be available that depict
graphical trending charts for all measurable aspects of a server or
device. Some systems allow for web-based performance charts and
executive summary reports that are delivered automatically on a
scheduled basis.
Remote control
Various systems incorporate features that allow IT
staff to quickly and easily control the desktop of computers and servers
on the local and wide-area network. Remote control functions enable the
ability for the IT manager to see the application and related error
message(s) just as the end-user sees it. Remote control of the mouse and
keyboard is also an option for most systems.
Ticketing system
The ability for the IT staff to track issues on the
network is critical. Having a working list of issues with the
associated statuses of each ticket can provide valuable insight into
staff productivity or lack thereof. For instance, knowing that several
users are having application reliability or performance related problems
may point to a common issue that will eventually affect all of the users
on the network.
Secure
connectivity
We prefer a secure communication process that
requires limited configuration of the firm’s firewall security profile.
For multi-office firms or in the case of outsourced monitoring, secure
outbound web messages should use current web services SOAP/XML through
HTTP/HTTPS rather than via the less secure SNMP protocol. Monitoring
traffic should require very low bandwidth consumption and offer the
option for dial-up Internet connections from remote sites where
high-speed Internet connections are not available or cannot be
cost-justified.
Outsourced model
Many of the monitoring services on the market can
be installed and managed on the firm’s local network. Separate servers
are generally required to host the monitoring system so that they are
discrete from the rest of the network infrastructure. For firms with
less than two FTEs on the IT management and administration team, we find
that using an outsourced monitoring service is most beneficial due to
the fact that hosting the system internally requires additional hardware
and software licensing that must also be maintained. Along with the
recommendation that the firm outsource all security-related management
and administration, it is also advisable to outsource the system
management technology so that the additional computing requirements and
skill-sets can be maintained without any extra expertise on behalf of
the firm’s IT personnel.
Monitoring systems
There are several systems available in the market
that can be used to assist the firm with system monitoring. Below is a
chart that outlines the general functions of each monitoring system.
|
Product |
Dell OpenManage™ |
HP OpenView™ |
IBM Director™ |
Xcentric Halo™ |
|
Primary device support |
Dell PowerEdge servers |
HP/Compaq servers |
IBM servers |
Manufacturer neutral |
|
Support
for IP enabled devices |
Y |
Y |
Y |
Y |
|
Alert notification |
Y |
Y |
Y |
Y |
|
Service monitoring |
Y |
Y |
Y |
Y |
|
Asset inventory (HW/SW) |
Y |
Y |
Y |
Y |
|
Reporting |
limited |
Y |
limited |
Y |
|
Remote control |
Y |
Y |
Y |
add-in required |
|
Graphical trending reports |
Y |
Y |
Y |
Y |
|
Ticketing system |
Y |
Y |
Y |
Y |
|
Secure connectivity |
Y |
Y |
Y |
Y |
|
Outsourced model |
N |
N |
N |
Y |
|
Automatic service restarts |
Y |
Y |
Y |
Y |
|
Comments |
Single server license included
with any new Dell server. |
Single server license included
with any new HP/Compaq server. |
Single server license included
with any new IBM server. |
100% managed service with
automatic reporting and issue resolution. |
|
Information valid as of 11/2004 |
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For more information on several of the industry’s
leading monitoring systems, please visit the following links:
Dell OpenManage --
http://www1.us.dell.com/content/topics/global.aspx/solutions/en/opmng_monitoring
HP/Compaq OpenView --
http://www.openview.hp.com/news/about/index.html
IBM Director --
http://www-1.ibm.com/servers/eserver/xseries/systems_management/director_4.html
Xcentric Halo --
http://www.xcentricgroup.com/solutions/maintain/managedservices/halo.aspx
Trey James is the
President and CEO of
Xcentric, LLC, a
technology consulting group that provides “Certified Networks for
CPAs”. With offices in Tulsa, Oklahoma; Birmingham, Alabama and
headquarters in Atlanta, Georgia, Xcentric is the only technology firm
that specializes in the accounting industry. You can reach this author
or any member of Xcentric by calling 866-XCENTRIC or by email at info@xcentricgroup.com.
We’re online at
www.xcentricgroup.com.
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2004 InfoTech Partners North America, Inc....your technology partner
(480) 706-1728
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InfoTech Partners North America, Inc.
13656 South 37th Place
Phoenix, AZ 85044-4531
Phone: (480) 706-1728
Fax/Voicemail: (480) 718-8880
Email: roman@itpna.com
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