First, look at each role and see
what it does...
Forest FSMOs
* Schema Master --> needed
when updating the schema
* Domain Naming master -->
needed when adding or removing domains within the forest
Domain FSMOs
* PDC Emulator --> needed for
legacy clients (NT4, W9x) when changing passwords, used for time sync, is used
for pwd checking when a user enters an incorrect pwd at another DC, used by DFS
roots to get DFS info
* RID Master --> needed to
distribute RID pools to DCs that have exhausted their current RID pool for 50%
(=250 RIDs)
* Infrastructure --> needed
to update references between domains in a forest (does not do anything in a
single domain forest)
If you look at this, there is no
need to first transfer the FSMO roles to another DC, just to carry out
maintenance activities. It also depends on the FSMO role. The most used ones in
your case will be the RID and the PDC FSMO. Only if you create more than 500
security principals (users, groups and computers) during the moment that the DC
with the RID FSMO is down, you will experience a problem on the DC that is left.
If you still have legacy clients and they want to change the password that will
not be possible. And if those clients have the DSClient installed that will not
be an issue either.
In short: leave as is. it will
be OK for those 2 hours
Cheers,
jorge
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Amy Hunter
Sent: Tuesday, November 29, 2005 16:43
To: [email protected]
Subject: [ActiveDir] FSMO role transfer
Hi guys,
We have two DC's, one which holds the Forest FSMO roles, the other which
holds the domain FSMO roles.
I plan to take each server down at different times so that one of
the two servers can provide authentication etc while the other
gets maintained.
Initially, I was planning on moving the FSMO roles to the other DC while
maintainance work is carried out and transferring it back once it's online
again. I would then do the same for the other DC.
I was then told that you don't need to move the FSMO roles when
you perform maintenance on a DC holding the roles. Each server
will be down for about 2hrs.
Does anyone have advice for me? I would like to move the roles for peace of
mind knowing they are available, but if I don't need to do that, I won! 't
bother
Is there any recommended practice?
Amy
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