Migrating Windows 2008 R2 Primary AD to New Hardware

hi,

 

 i'm planning migrate primary ad machine windows 2008 r2 new hardware, retain ip , hostname. have 3 sites in environment are

site1: primary dc & additional dc

site2: additional dc

site3: additional dc

primary dc holds fsmo roles , has gc & dns server, no dhcp.

i'm planning follow below steps

 

1) take full backup of primary ad

2) run repadmin /showrepl & dcdiag on primary dc (old machine)

3) run adprep /forestprep & adprep /domainprep & adprep /rodcprep on primary dc (old machine)

4) move fsmo roles & gc additional dc in site1, change additional dc primary dc. do have wait after step if yes how time approx?

5) shutdown old primary domain controller.

6) install new os on new hardware , join domain, assign same ip previous primary dc had , same hostname. (i'm unsure whether create conflict or not because ad have computer object created same name)

7) promote machine additional dc , make gc , dns server available.

8) run repadmin /showrepl & dcdiag on new machine

9) transfer fsmo roles step 4 machine new machine.

10) leave setup couple of days , test environment. now should old machine directly format it? demoting out of question believe impact new server well.

 

 

hello,

if understand correct hte os version windows server 2008 r2 on old server , alsoon new one? no schema upgrade required on schema version 47, can check with:

"dsquery * cn=schema,cn=configuration,dc=domainname,dc=local -scope base -attr objectversion"

without quotes in elevated command prompt. steps:

1. ok

2. ok , should done on regular time schedule

3. not required if os windows server 2008 r2 stated.

4. ok, make sue other dcs global catalog server , @ least second dns server domain exist , machines configured use one. recommended have dcs global catalog server enabled.

5. no, never shutdown dc. must demoted dcpromo remove correct ad database. after can rename or delete ad uc, way have name , ip address free use on new hardware.

6. see 5.

7. ok use 1 existing domain dc/dns server on nic preferred nothing else, other dns servers add if replication new dc done complete.

8. ok

9. ok

10. see 5 , either leave old renamed machine in domain , use other roles(it renamed no problem) or delete ad

before starting use support tools , check output, if should have please upload files:

ipconfig /all >c:\ipconfig.txt [all dcs]
dcdiag /v /c /d /e /s:dcname >c:\dcdiag.txt
netdiag /v >c:\netdiag.txt [from each dc, netdiag may work isn't supported windows server 2008 , don't run on windows server 2008 r2]
repadmin /showrepl dc* /verbose /all /intersite >c:\repl.txt  ["dc* place holder starting name of dcs if begin same (if more 1 dc exists)]
dnslint /ad /s "dcipaddress" (http://support.microsoft.com/kb/321045)

as output become large, ipconfig /all >c:\ipconfig.txt [all dcs]
dcdiag /v /c /d /e /s:dcname >c:\dcdiag.txt
netdiag /v >c:\netdiag.txt [from each dc, netdiag may work isn't supported windows server 2008 , don't run on windows server 2008 r2]
repadmin /showrepl dc* /verbose /all /intersite >c:\repl.txt  ["dc* place holder starting name of dcs if begin same (if more 1 dc exists)]
dnslint /ad /s "dcipaddress" (http://support.microsoft.com/kb/321045)

as output become large, don't post them thread, please use windows sky drive(with open access!) http://explore.live.com/windows-live-skydrive , add link here. /e in dcdiag scans complete forest, better run on cob.

**note: using /e switch in dcdiag run diagnostics against dc's in forest. if have significant numbers of dc's test generate significant detail , take long time. want take account slow links dc's add testing time.
post them thread, please use windows sky drive(with open access!) http://explore.live.com/windows-live-skydrive , add link here. /e in dcdiag scans complete forest, better run on cob.

**note: using /e switch in dcdiag run diagnostics against dc's in forest. if have significant numbers of dc's test generate significant detail , take long time. want take account slow links dc's add testing time.

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best regards meinolf weber disclaimer: posting provided "as is" no warranties or guarantees , , confers no rights.

Windows Server  >  Migration