[1345] in SIPB-AFS-requests
Re: When will the cutover happen
daemon@ATHENA.MIT.EDU (Derek Atkins)
Wed Apr 27 20:35:23 1994
To: "Richard Basch" <basch@MIT.EDU>
Cc: sipb-afsreq@MIT.EDU
In-Reply-To: Your message of Wed, 27 Apr 94 20:15:22 -0400.
<9404280015.AA24092@tardis.MIT.EDU>
Date: Wed, 27 Apr 94 20:32:53 EDT
From: Derek Atkins <warlord@MIT.EDU>
I doubt the cutover will happen until after finals. And *I* don't
want to move *ALL* the servers at one time! I want at least one of
the old IP-addresses to have a DB server, even if it isn't advertized,
for at least 2-4 weeks after we tell transarc!!!
Basically, the way I see it happening:
1) We send out mail telling people that on such-and-such a date we
plan to move our database servers to these addresses:
18.181.0.22
18.181.0.23
(or whatever)
2) On that date, we *do* move the servers to those addresses, and
start advertising *only* the 18.181 addresses, however we also leave
one of 18.70.0.21{0,9} active as a DB server, so that sites that are
slow in updating don't lose totally.
3) After about 2-4 weeks, we bring down the 18.70 machine, and let
people who haven't changed by *then* lose.
If people do not think this is reasonable, speak up now or forever
hold your peace!
-derek (a person who thinks changing the IP addresses of DB servers is
a *BAD IDEA*)
