Sunday, March 2, 1997

Migrate Mail Services to Temporary Machine While Mail Service Machine is Upgraded.

Starting time of service interruption: 8:00 AM
Ending time of service interruption: 5:00 PM

What is the Reason for this Service Interruption?

 The Mail Service Machine will be upgraded to increase its throughput. Specifically it is scheduled to have both hardware and software upgrades applied. These upgrades include

Because of these upgrades, and the down time required to perform them, Mail Services will be moved to a temporary site for several weeks.

Who is Affected by this Service Interruption?

 All users who use mail or POPmail will be affected.

What Services will be Unavailable?

 The following services will be unavailable:

What will Users See as a Result of this Service Interruption?

 There should be no lost mail as a result of this outage! However, incoming mail will be delayed on Sunday, March 2. A new machine name may show up as part of the local address.

Mail which cannot be delivered from other systems during the service interruption period will be queued by the sending machine. Most machines queue their outgoing mail for at least three days, trying every half-hour or so to deliver to the target address. If the target address remains unavailable for longer than this time period, mail is then bounced back to the sending user (not likely during this outage because of its limited duration). Some machines also send a warning message to the sender indicating that the mail is delayed and that the sending system will continue trying until its maximum waiting period is over.

Users may notice a new machine name as part of the local address. There is no need to worry about this name as it is temporary and several measures are being taken to make sure that all cluster mail is delivered correctly. The official mail address for the cluster is "polymail.calpoly.edu", which will continue to work during this time period.

Revised by: George Westlund (gwestlun@calpoly.edu)
Revised: February 6, 1997

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