How to roll back Ex2k3 Forest/Domain Prep?

jim · Joined: 05 Aug 2007 Posts: 15

Does anyone know of an MS article that describes how to roll back the
changes made in AD from running Ex2k3 forestprep and domainprep? Unless i'm
mistaken, there are versions of forestprep and domainprep specifically for
Ex2k3 to prepare the directory for the first Exchange 2003 server
installation.

We're currently in Ex2k and Win2k native mode. I'm going to run Ex2k3
"preps" this weekend, but i need to know how to undo the preps work in case
something goes wrong.

Any help is appreciated!

Archived from group: microsoft>public>exchange>admin

Arlo Clizer [MVP] · Joined: 05 Aug 2007 Posts: 1

"jim" wrote in#Z5GcpcFHA.3880@tk2msftngp13.phx.gbl:

> We're currently in Ex2k and Win2k native mode. I'm going to run Ex2k3
> "preps" this weekend, but i need to know how to undo the preps work in
> case something goes wrong.

There isn't really a "rollback" for the procedure. A system state backup is
a good idea. It is highly unlikely anything will go wrong.

Regards,

--
Arlo Clizer
Exchange MVP
FAQ: http://www.exchangefaq.org
Archives: http://groups.google.com

jim · Joined: 05 Aug 2007 Posts: 15

Do i backup the system state on all the DC's, or just the GC?

"Arlo Clizer [MVP]" wrote in message @207.46.248.16...
> "jim" wrote in
> #Z5GcpcFHA.3880@tk2msftngp13.phx.gbl:
>
>> We're currently in Ex2k and Win2k native mode. I'm going to run Ex2k3
>> "preps" this weekend, but i need to know how to undo the preps work in
>> case something goes wrong.
>
> There isn't really a "rollback" for the procedure. A system state backup
> is
> a good idea. It is highly unlikely anything will go wrong.
>
> Regards,
>
> --
> Arlo Clizer
> Exchange MVP
> FAQ: http://www.exchangefaq.org
> Archives: http://groups.google.com

Joe Richards [MVP] · Joined: 05 Aug 2007 Posts: 5

Considering that the forestprep is a schema update there is no rollback for it
other than a redeploy of all of your domain controllers.

--
Joe Richards Microsoft MVP Windows Server Directory Services
www.joeware.net

jim wrote:
> Does anyone know of an MS article that describes how to roll back the
> changes made in AD from running Ex2k3 forestprep and domainprep? Unless i'm
> mistaken, there are versions of forestprep and domainprep specifically for
> Ex2k3 to prepare the directory for the first Exchange 2003 server
> installation.
>
> We're currently in Ex2k and Win2k native mode. I'm going to run Ex2k3
> "preps" this weekend, but i need to know how to undo the preps work in case
> something goes wrong.
>
> Any help is appreciated!
>
>

Rich Matheisen [MVP] · Joined: 05 Aug 2007 Posts: 797

"Joe Richards [MVP]" wrote:

>Considering that the forestprep is a schema update there is no rollback for it
>other than a redeploy of all of your domain controllers.

Well, there *is* an autoritative restore -- but the instructions for
that begin with "First, the sky gets very dark." Smile

--
Rich Matheisen
MCSE+I, Exchange MVP
MS Exchange FAQ at http://www.swinc.com/resource/exch_faq.htm

Joe Richards [MVP] · Joined: 05 Aug 2007 Posts: 5

An auth restore will not back out a schema change unfortunately. You need to
shut down all running DCs, pull out a DC for each domain from the deep freeze
from prior to the schema mod and all packaged together at once so they are all
up to date with each other, then wipe and repromote the other DCs.

--
Joe Richards Microsoft MVP Windows Server Directory Services
www.joeware.net

Rich Matheisen [MVP] wrote:
>
>
> Well, there *is* an autoritative restore -- but the instructions for
> that begin with "First, the sky gets very dark." Smile

>

Rich Matheisen [MVP] · Joined: 05 Aug 2007 Posts: 797

"Joe Richards [MVP]" wrote:

>An auth restore will not back out a schema change unfortunately.

That's a bummer. Good to keep in mind, though.

--
Rich Matheisen
MCSE+I, Exchange MVP
MS Exchange FAQ at http://www.swinc.com/resource/exch_faq.htm

Rich Matheisen [MVP] · Joined: 05 Aug 2007 Posts: 797

"Rich Matheisen [MVP]" wrote:

>"Joe Richards [MVP]" wrote:
>
>>An auth restore will not back out a schema change unfortunately.
>
>That's a bummer. Good to keep in mind, though.

Come to think about it, I was thinking of the situation where you're
trying to _recover_ something that was deleted, not to remove
something that was added. DOH!

--
Rich Matheisen
MCSE+I, Exchange MVP
MS Exchange FAQ at http://www.swinc.com/resource/exch_faq.htm

jim · Joined: 05 Aug 2007 Posts: 15

Well, i ended up just backing up the system state on the GC. It went off
without a hitch, so i guess i'm in the clear.

Thanks for everyone's feedback!

jim

"Rich Matheisen [MVP]" wrote in message @4ax.com...
> "Rich Matheisen [MVP]" wrote:
>
>>"Joe Richards [MVP]" wrote:
>>
>>>An auth restore will not back out a schema change unfortunately.
>>
>>That's a bummer. Good to keep in mind, though.
>
> Come to think about it, I was thinking of the situation where you're
> trying to _recover_ something that was deleted, not to remove
> something that was added. DOH!
>
> --
> Rich Matheisen
> MCSE+I, Exchange MVP
> MS Exchange FAQ at http://www.swinc.com/resource/exch_faq.htm

Harry Bates · Joined: 06 Aug 2007 Posts: 1

Another alternative is to set up one DC to receive delayed replication by
making it part of another site and setting the rep for something like a week
or so. Make sure it carries no roles and is not a GC. In DNS turn of the
ability for users to auth to it, and there you go. An off-site or on-site
live backup of your domain without backing up and restoring. This is not to
say that this voids out the necessity of backing up, but it does provide you
with the ability to chainsaw the other DC objects and rep partners, seize
roles, and promote it to GC. We have a number of these set up on VMWare. You
can house about 3 or 4 of them comfortably on lightweight hardware because
they basically are responsible for nothing and have them off-site or on-site
for that matter. Each one of the three we have are set for different rep
times. Monday\Thur and one every 2 weeks. This allows for a live object
recovery.

-Harry Bates
Lockheed-Martin Corporation

"Joe Richards [MVP]" wrote in message
news:%23Ibub1BdFHA.1036@tk2msftngp13.phx.gbl...
> An auth restore will not back out a schema change unfortunately. You need
to
> shut down all running DCs, pull out a DC for each domain from the deep
freeze
> from prior to the schema mod and all packaged together at once so they are
all
> up to date with each other, then wipe and repromote the other DCs.
>
>
> --
> Joe Richards Microsoft MVP Windows Server Directory Services
> www.joeware.net
>
>
> Rich Matheisen [MVP] wrote:
> >
> >
> > Well, there *is* an autoritative restore -- but the instructions for
> > that begin with "First, the sky gets very dark." Smile

> >

bhat · Joined: 06 Aug 2007 Posts: 1

Hi! man,

I think forestPrep will not caouse any harm to your exesting OS. It
just prepares your forest to hold different Exchange Server
objects/attribute in Active directory. It'll not change anything to the
eisting objects. It should not caus nay problem.

Rgds
sribhat.

Joe Richards [MVP] wrote:
> *Considering that the forestprep is a schema update there is no
> rollback for it
> other than a redeploy of all of your domain controllers.
>
> --
> Joe Richards Microsoft MVP Windows Server Directory Services
> www.joeware.net
>
>
> jim wrote:
> > Does anyone know of an MS article that describes how to roll back
> the
> > changes made in AD from running Ex2k3 forestprep and domainprep?
> Unless i'm
> > mistaken, there are versions of forestprep and domainprep
> specifically for
> > Ex2k3 to prepare the directory for the first Exchange 2003 server
> > installation.
> >
> > We're currently in Ex2k and Win2k native mode. I'm going to run
> Ex2k3
> > "preps" this weekend, but i need to know how to undo the preps work
> in case
> > something goes wrong.
> >
> > Any help is appreciated!
> >
> > *

--
bhat
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