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This Network Update was distributed via the Exchange Network email alerts list on March 14, 2007. |
Weekend Exchange Network and CDX Availability This is a reminder that EPA's Central Data Exchange (CDX) will continue to undergo maintenance this weekend. This maintenance is part of an ongoing effort to upgrade the servers that process data coming into EPA and provide core services on the Exchange Network such as authentication and quality assurance services. Exchange Network partners may experience communication errors with EPA's production CDX Node and the Network Authentication and Authorization Service (NAAS) during the following dates and times: Between 9:00 PM EDT on Friday March 16, 2007 and 12:00 AM on Sunday March 18, 2007 EPA will be scheduling other outages in the coming weeks with several more weekend outages tentatively scheduled in April and May. Exchange Network Partners may experience periods of unavailability during these times. If you intend to conduct data exchanges over the weekends, please consider following up with your exchange partners to confirm successful transactions during these times. CDX Normal Production Operational hours are 24 hours a day 7 days a week, which includes a standard system maintenance time window between Friday 6pm - Monday 8am. Realistically it is understood that many Exchange Network partners continue to rely on CDX servers on weekends, so CDX provides system level Systems Administration and Operational support 7 days a week to minimize down-time for CDX as much as possible. EPA apologizes for these inconveniences and looks forward to the More specific information will be provided as soon as it is available. EPA will also be posting notices and updates on CDX at: https://cdx.epa.gov/recent.asp
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