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Spring Break Outages

daemon@ATHENA.MIT.EDU (Matt Braun)
Thu Mar 17 18:56:33 1994

To: athena-outage@MIT.EDU
Date: Thu, 17 Mar 94 18:56:15 EST
From: Matt Braun <mhbraun@MIT.EDU>


We are planning the following outages for software upgrades during Spring Break
(next week).  Please feel free to mail me if you have any questions.


Saturday (3/19):
		Scylla (AFS)

Sunday:
		Hydra (AFS)

Monday:
		Charybdis (AFS)
		Neskaya (Zephyr) 
		Menelaus (Discuss) 

Tuesday:
		Chimera (AFS)
		Clio (Hesiod) 
		
Wednesday: 	
		Maeander (AFS)
		Apollo (Hesiod)
Thursday:
		Orf (AFS)
		Suomi (Hesiod) 

Friday:
		Prill (AFS)
		Neskaya, Arilinn, B11zephyr (All three zephyr servers) 

All work will be started ridiculously early in the morning ( 7:30  am ) 


The Scope of the outages is: 


AFS: This should not affect users at all.  In the worst case, their
workstations will hang for a short timeout and give them a 'lost contact'
message.

Hesiod: This outages also should be completely transparent.

Zephyr: The outage on Monday will be fairly transparent (zephyr service may
slow down a little, but everything should work.  The outage on Friday, however
will be very visible.  All 3 servers will be going down simultaneously,
therefore all subscription and location information will be lost.  The outage
should not be more than 1/2 hour.  Users will need to 'renew' as well as 'zctl
load ; zctl unhide' to receive zephyr messages afterwards.

Discuss: all meetings on menelaus will be inaccessible for the duration.  Mail
to archives however will get queued up so no data will be lost.  I estimate
that the update should not take more than 45 minutes.




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