Domain Controllers in DR Site

Domain Controllers in DR Site

we have domain controllers in SiteA,  on  disaster recovery SiteB, we have a couple of domain controllers.
I would like to know if SiteA goes down, whether we need to seize Roles on the DCs in  SiteB

All DCs in both sites are Global Catalog enabled.

Thank you.
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Lee W, MVPTechnology and Business Process AdvisorCommented:
If site A goes down you DO NOT seize roles.  You seize roles ONLY when site A is DESTROYED.  Unrecoverable.  AD will run fine for a period of time without the FSMO roles available.  If a fire destroys Site A, a truck drives through the building and crushes the servers, a tornado wipes it out, then you seize roles.  If it loses power or the building floods the first floor while the servers are on the second, you DO NOT seize roles.  You wait for the building to come back on line and resume operations.  (EXCEPTION - if the building is offline for more than 60 days (default tombstone time), THEN you seize roles.)
jskfanAuthor Commented:
when I said disaster , I meant the servers are damaged.
SO we need to seize the roles. Correct ?

I believe if  siteA is inaccessbile for few days, and we need to use SiteB, then probably Seizing the ROles  is not needed. Though I wonder if a DC which is does not hold Operations Master role if it can service the password reset.
Lee W, MVPTechnology and Business Process AdvisorCommented:
I don't know how I can be any more clear.

If you cannot recover the FSMO role holder within 60 days, then you seize the roles.  Otherwise, DON'T

The best way you're going to understand this is to use your test lab to see what happens.  Just don't sync the times with the VM hosts and you can easily simulate this.

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jskfanAuthor Commented:
Thank you
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