2nd DC gone down

Hi Guys ,
My DC2 has gone done (hardware fault)  - details below:
DC1 - Roles:  AD / DNS / All FSMO roles - Global Catalog enabled
DC2 - Roles: AD / DNS (copy of DC1) / DHCP -  Global Catalog enabled

can i add the new role DHCP on my DC1 and just authorize it?  Then would i just take the DC2 off the network and clean up AD via Metadata?  or is it best to by another server hardware and bring the server back up via backup?
jag bAsked:
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MASEE Solution Guide - Technical Dept HeadCommented:
Even if you restore from backup you will have few errors/warnings.
Instead install another ADC and cleanup the failed DC

https://www.petri.com/delete_failed_dcs_from_ad
https://technet.microsoft.com/en-us/library/cc816907(v=ws.10).aspx

Do you have backup of your DHCP? If not you have to configure DHCP from scratch and authorize.
If you have backup just install DHCP role and restore DHCP backup.
https://community.spiceworks.com/topic/342341-how-to-backup-dhcp-configuration-and-restore

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jag bAuthor Commented:
Hi Mas,
I have full backups of all servers - what location would the DHCP files sit on the server?

i think ill go with cleaning up the failed DC and create a new ADC...
MASEE Solution Guide - Technical Dept HeadCommented:
Please mention the version of server version were running
Please check this.
https://technet.microsoft.com/en-us/magazine/ff621490.aspx
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jag bAuthor Commented:
Hi mas - running Server 2012  -i think i found the DHCP folder on my backup - location %SystemRoot%\System32\DHCP
Thanks Mas - im just installing the DHCP role now on the DC1 - will keep you updated
jag bAuthor Commented:
Mas - dhcp all working now thanks.
Now cleaning up the old DC metadata - would you suggest clean the whole server with all reference and when creating new DC - rename with new IP & computer name - or keep the same IP & computer name?
MASEE Solution Guide - Technical Dept HeadCommented:
If you assign the same name and IP it will not give you anything additional instead it may give you errors/warnings in future.
jag bAuthor Commented:
Mas - so best to start with with a new DC - new name & IP?
MASEE Solution Guide - Technical Dept HeadCommented:
Yes please
If you are good in cleaning AD database you can else please don't think of keeping same name and IP.
jag bAuthor Commented:
excellent advice :)
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Windows Server 2012

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