FSMO roles, Upgrading to 2008 R2

Home Forums Server Operating Systems Windows Server 2000 / 2003 / 2003 R2 FSMO roles, Upgrading to 2008 R2

This topic contains 11 replies, has 8 voices, and was last updated by Avatar grouploto555 6 years, 3 months ago.

Viewing 12 posts - 1 through 12 (of 12 total)
  • Author
    Posts
  • #162013

    Hey guys,

    We are going to migrate our 2003 domain to a 2008 domain (thanks god finally, tnew GPOs). I was looking at this: http://www.petri.com/determining_fsmo_role_holders.htm

    DC1 is:

    RID Master
    Infrastructure Master
    PDC Emulator
    Domain Master

    DC2 is:

    Schema Master

    So, my first planning was to move the role to DC1, reinstall the DC2 in 2008, rejoin domain as DC, and put all the role back on this one so I can reinstal DC1 (and also put DHCP on it).

    After looking at it, in GUI mode: I have DC2 and DC2..

    So my guess is that I should use Ntdsutil to move this role to the DC1, before Depromote the DC2?

    Thanks :beer:

    Avatar
    joeqwerty
    Moderator
    #304104

    Re: FSMO roles, Upgrading to 2008 R2

    Why not just do an in-place upgrade of the domain controllers instead of rebuilding them?

    http://technet.microsoft.com/en-us/library/upgrade-domain-controllers-to-windows-server-2008-r2(v=ws.10).aspx

    Avatar
    sara
    Member
    #375771

    Re: FSMO roles, Upgrading to 2008 R2

    Working from 2003 32bits to 2008 x64?

    Avatar
    joeqwerty
    Moderator
    #304105

    Re: FSMO roles, Upgrading to 2008 R2

    Gotcha. That can’t be done.

    Avatar
    Ossian
    Moderator
    #188682

    Re: FSMO roles, Upgrading to 2008 R2

    Do consider 2008R2 or 2012 as 2008 is a bit long in the tooth now

    Avatar
    MCSE1982
    Member
    #378039

    Re: FSMO roles, Upgrading to 2008 R2

    Agreed, for sure look at going to 08R2 or 2010, regular 08, gives you a little extra time if microsoft XP’s it.

    Avatar
    sara
    Member
    #375772

    Re: FSMO roles, Upgrading to 2008 R2

    Managor;275264 wrote:
    Agreed, for sure look at going to 08R2 or 2010, regular 08, gives you a little extra time if microsoft XP’s it.

    Misstyped:

    2008 STD R2 with SP1 x64 ;) this is what we have.

    So, reinstalling I need, I thought maybe server would allow going from 32 to 64.

    Transfering the schema with ntdsutil would be okay? no issue there to have all role on the same server?

    JeremyW
    JeremyW
    Moderator
    #270481

    Re: FSMO roles, Upgrading to 2008 R2

    No issues having all the roles on the same server. You plan sounds good to me. Make sure you have good backups before you start.

    Avatar
    sara
    Member
    #375773

    Re: FSMO roles, Upgrading to 2008 R2

    I have a couple of system state backup. I think I should be fine. I will just have to make it join really fast the domain (you know, that would be shitty if while reinstalling, the first one crash haha)

    Thanks for confirming guys!

    Avatar
    grouploto555
    Member
    #387227

    Re: FSMO roles, Upgrading to 2008 R2

    There’s no problem with both DC’s being GC’s in a single domain forest, so go ahead and make the new server a GC as a first step. If your AD DNS is AD integrated then no “transfer” of DNS is required, the AD DNS zones will be replicated to the new server as part of the AD replication process. The only thing you’ll need to manually transfer is DHCP. You can do this beforehand and authorize the new DHCP server but leave the scope deactivated until you’re ready to make the switch. I would recommend that you not give the new server the same ip address as the old server as that’s likely to make things flaky because of the DNS records tied to the old ip address of the W2K3 DC. Update your DHCP scope to assign the new server as the primary DNS server for the DHCP clients and manually set it for statically assigned hosts. Once you’ve done that you can turn off DHCP on the old server and activate the DHCP scope on the new server. After verifying that everything works you can DCPROMO the old server to demote it.

    If you transfer the DHCP database beforehand, the lease information will be out of date by the time the scope is activated. If the OP is intent on a cut-over instead of a split-scope migration, you should do the export and import right before the cut over.

    Hope it works…

    Cheers…!!!

    Avatar
    wullieb1
    Moderator
    #244413

    Re: FSMO roles, Upgrading to 2008 R2

    ChristTheGreat;275247 wrote:
    Hey guys,

    We are going to migrate our 2003 domain to a 2008 domain (thanks god finally, tnew GPOs). I was looking at this: http://www.petri.com/determining_fsmo_role_holders.htm

    DC1 is:

    RID Master
    Infrastructure Master
    PDC Emulator
    Domain Master

    DC2 is:

    Schema Master

    So, my first planning was to move the role to DC1, reinstall the DC2 in 2008, rejoin domain as DC, and put all the role back on this one so I can reinstal DC1 (and also put DHCP on it).

    After looking at it, in GUI mode: I have DC2 and DC2..

    So my guess is that I should use Ntdsutil to move this role to the DC1, before Depromote the DC2?

    Thanks :beer:

    As an interim measure why not utilise a virtual server, or even an old desktop, which will allow you to have both servers running at the time of upgrade.

    You can then move things around and get comfortable with your 2008 install prior to upgrading fully.

    Avatar
    sara
    Member
    #375775

    Re: FSMO roles, Upgrading to 2008 R2

    wullieb1;275414 wrote:
    As an interim measure why not utilise a virtual server, or even an old desktop, which will allow you to have both servers running at the time of upgrade.

    You can then move things around and get comfortable with your 2008 install prior to upgrading fully.

    That would have been a good idea. I didn’t thought about this.

    But I took a big breath, transfered all role on DC1, and reinstalled DC2. Went fine.

    Only when I did DC1, backuped DHCP, transfered roles, all this went fine except I forgot to modify a logon script which caused some issue with users :roll:

    So now, 2 DC in 2008 R2, Domain raised to 2008 R2, RRAS, DHCP came back to DC1. Role are separated on the two server.

    went easy I think. Next time, maybe a temp server would be a nice idea. I’ll keep this info for our Other site that will migrate in a couple of months. Just need to make sure that all the role are transfered. There is something strange event during the migration but all came back okay after.

    Thanks guys :)

Viewing 12 posts - 1 through 12 (of 12 total)

You must be logged in to reply to this topic.