TT CME Gateway System Administration Manual - Trading ...
TT CME Gateway System Administration Manual - Trading ...
TT CME Gateway System Administration Manual - Trading ...
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Example 3:<br />
Unsuccessful Failover<br />
6 Disaster Recovery<br />
When Jim logs into gateway B, none of his fills or orders refresh. He does not have<br />
access to his historical fills. He resumes trading.<br />
The IT staff at QFS restarts gateway A. Traders can begin logging into gateway A,<br />
and trading continues as normal. However, if a trader submits orders on gateway<br />
B, then logs off B and into gateway A, that trader does not have access to trading<br />
activity (orders and fills) managed by gateway B.<br />
QFS has two <strong>TT</strong> <strong>Gateway</strong>s (called A and B) with 40 traders – 20 traders on each<br />
gateway. During trading hours, software on gateway A fails. All 20 traders using<br />
that gateway begin logging into gateway B. However, trading is particularly heavy<br />
that day and the software on gateway B begins experiencing noticeable latency.<br />
To resolve this situation (latency caused by heavy volume) from occurring in the<br />
future, QFS calls <strong>CME</strong> Group and orders three more SLE configuration<br />
connections. QFS also calls <strong>TT</strong> for installation of three additional <strong>TT</strong> <strong>Gateway</strong>s.<br />
This provides better failover and supports future growth of the company.<br />
116 <strong>CME</strong> <strong>Gateway</strong> <strong>System</strong> <strong>Administration</strong> <strong>Manual</strong><br />
<strong>Trading</strong> Technologies International, Inc.
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