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High Availability
Solutions
IMPORTANT NOTICE 26th October 2006:
Please be aware that Prior IT Solutions (August 1998 to August 2006) has been
closed down and no longer operates as a Limited company and is therefore no longer
doing business under the name of Prior IT Solutions Ltd. This web site will remain
active for the time being to inform customers of this situation, and for purposes
of
continuity
because it also has links to personal web sites.
As you will see from our previous
customers section,
Prior IT has provided mission critical high availability
solutions to several prestigious customers utilising
the
Hewlett Packard product MC/ServiceGuard,
and Digital Unix ASE (Available Server Environment);
Vodafone
Cable & Wireless
Walkers
Snacks
Swire
Blanch Financials
NOKIA
Telecommunications
Barclays
Life Assurance
ICI
Performance Chemicals
Glaxo
Wellcome
The most exciting
and challenging
was for the Vodafone
mobile phone
network UNIBILL
Project, incorporating 16 HP Servers, 4 dedicated failover servers with multiple
failure scenarios, transaction processing software, cutting-edge fibre-channel
technology, EMC disk arrays and plans for a complete disaster recovery system.
Due to the nature of high-availability systems which require many methods of
monitoring software and hardware states, these projects required close liaison
with multiple teams
to ensure correct communication and transfer of control whenever any critical
item failed.
In such a failure situation its redundant counterpart would
take over control and the monitoring software alerts support staff so that
remedial action can be taken.
Designing such systems requires careful analysis, and a broad overview of the
many aspects of potential system failures, at whatever level - software, hardware
or network. |
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