<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">In performing database maintenance on PDL, I plan to purge all tracking messages from the PDL tracker on Monday 5 November, 2012 at approximately 8:00 AM MST. Expected tracker downtime will be approximately 10 minutes. <b>This downtime should not affect real-time products flowing through PDL</b>. During this downtime however, tracker messages will not be logged. If we are experiencing a significant event or sequence of events (or recently experienced such an event), I will postpone this downtime so as not to miss potentially important tracking messages.<div><br></div><div>The product tracker database is used to determine arrival times for products and has generally been used to build "timelines" for events after a significant event or sequence.</div><div><br></div><div>I will archive the current data in the tracker so, if required, this data can still be made available; however it will be much more difficult to build a timeline from this archived data. Please let me know if you require access to this archived data.</div><div><br></div><div>If this periodic data archival becomes problematic, we can work towards a better solution in the future. However, for the time being this is the best possible solution in order to ensure real-time products continue to flow through PDL in a timely manner.</div><div><br></div><div>Thanks,</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>~Eric.</div><div><br></div></body></html>