CIFS Domain controllers

ALESSANDRO2225 — Thu, 05 Jun 2025 05:29:25 GMT

Hi all,

i have a FAS 3140 with 2 controllers in active/active configuration.

Until today i had a Windows 2003 R2 DC where the 2 controllers log on.

This DC runs DNS service too

I have added some week ago a new DC W2008 R2, with DNS installed.

I have changed a week ago DNS on NetAPP to point to the new one.

Until now all seems OK.

Now in "NetApp OnCommand System manager" i see under "CIFS" then "Domain" that the old domain controller has status "connected" as \\%oldDC%.

I can see both the DC (2003 and 2008) as "Favored".

My question is: what happens if i turn off the old 2003 DC, as both controllers seem to be connected with it ?

Any impact i am not aware of?

Thaks in advance.

Re: CIFS Domain controllers

DOMINIC_WYSS — Tue, 02 Sep 2014 14:55:05 GMT

it's a basic ActiveDirectory thing: you don't just turn off the old DC, you have to demote it.

then it will remove it's records from AD/DNS. the filers will see this change in DNS and will only connect to the new DC, as no other DCs exist anymore.

topic CIFS Domain controllers in Network and Storage Protocols

CIFS Domain controllers

Re: CIFS Domain controllers