| GSM | KVM | Console
Access |
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Data centers are the lifeblood of businesses.
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Global Site Management, a uniquely
designed logical and complete power management solution
enables you to monitor and manage global networks, systems
and IT equipment from anywhere, at any time.
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NORLINX now brings together another
series of solutions of console and KVM management promising
to deliver the world's most effective and secure line
of remote enterprise management solutions.
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Secure console management
has become an essential requirement for operating today's
complex data centers and managing assets across distributed
environments. IT organizations need to give their core
team of Skilled sysadmins, ready access to critical
business computing resources on an anywhere/anytime
basis. If that access is not adequately provisioned,
core systems may under-perform or fail leading to potentially
disastrous consequences for the business.
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| What is
a Console Access Server? |
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When the number of servers and boxes
in the network grow above a few nodes, it becomes unpractical
to have one management console per box. Customers need
to access all the console ports without moving from
one terminal to another. A Console Access Server is
the equipment that allows the system administrator to
conveniently access all console ports in a computer
network or server farm from one single station.
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Another reason to use a Console access
server is the need to access the console ports
remotely. A console management solution should
enable console access from anywhere, anytime, locally
through the LAN or remotely through the Internet or
dialup connections.
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A Console Access Server has multiple
RS-232 serial lines for connection to the console ports
and at least one Ethernet LAN port for connection to
the network. It provides connectivity so that access
is easy, fast and convenient and security so that intruders
are kept out.
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With more mission critical applications
being implemented on server farms rather than on a single
large mainframe, Console Access Servers become indispensable
elements in any large computer installation.
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| Selecting
the right Console Access Server |
| Here is a
list of features to look for in a Console Access Server. |
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Scalability and Port Density
- Because rack space in a data center is expensive,
having the maximum number of ports in the minimum space
is essential. Products in the market offer a maximum
number of ports ranging from 16 or 64 ports per chassis.
Some products allow stacking multiple boxes to create
larger virtual boxes. Typical port densities range from
8 to 16 ports per 1U of rack space, with the highest
densities being of 32 ports per 1U (1U equals 1.75 inches
of height in a standard 17-inch rack).
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Mechanical Characteristics
- The console access server should integrate well
with your rack and cable management systems. Built-in
connectors, minimum external cabling, absence of moving
parts, high-level of integration, front panel LED status
indications, integrated power supply, are examples of
desirable features. Some products offer clumsy external
cables or won't easily fit in a rack.
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Security and Connectivity - anyone
who gains access to the console port of servers and
routers can potentially take control of the entire network.
Security features such as IP Packet and Service Filtering,
RADIUS Socket Authentication, and Secure Shell (SSH)
are essential. A CAS should allow easy, fast and convenient
access for the system managers, but must be able to
keep intruders out. It should have full support to Internet,
LAN and dialup connectivity. Older products from the
pre-Internet era lack the security or the Internet connectivity
required by today's networks.
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Functionality and Flexibility -
Some generic terminal server products marketed as
CAS lack the features for good console port management.
A CAS should support direct telnet or SSH to a serial
port and support multiple port addressing methods (IP
address, TCP port number, or manual selection in a menu)..
It should allow logging of messages. Depending on the
product selected, you may be able to customize the functionality
to your own needs.
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Cost and Service - Depending
on the vendor's focus and knowledge on console management,
there may be significant variation on the cost of the
equipment and the quality of service offered with the
product. Before purchasing, make sure the vendor understands
networking in general and console access in particular
and that the product has a modern design is cost-effective
and can be updated though a software download.
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NORLINX now presents scalable, secure,
flexible and cost-effective console management solutions
for today's enterprise computing environments that are
fairly large, complex and geographically distributed.
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