Server 2008 R2 Slow to Boot

Discussion in 'Server Setup' started by Clayton, Sep 18, 2009.

  1. Clayton

    Clayton Guest

    Just installed Windows Server 2008 R2, installed Active Directory services,
    DNS Server and 1 Domain Controller using DCPromo and after reboot it takes
    up to 5 minutes to fully load, is this normal?

    I have put in a static IP and using 127.0.0.1 as a DNS server

    I have 4GB's of memory a E8400 CPU Dual Core2 3.0GHz and 250GB SATA HDD

    Thanks
     
    Clayton, Sep 18, 2009
    #1
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  2. Clayton

    Clayton Guest

    Furthermore I have now added Exchange Server 2007 and it's taking longer to
    startup, 10 minutes later, the system is still loading
     
    Clayton, Sep 18, 2009
    #2
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  3. Hello Clayton,

    This is normal, it belongs to the problem that during boot the server tries
    to reach it's DNS server(own ip address), BUT the DNS server service is not
    started at that point. So it goes in a kind of search for DNS servers, after
    some time this process stops and it will go on booting. Now the next problem
    comes up, AD relies on DNS also but if the DNS server is not fully started,
    netlogon etc. can not come up also. If AD is not coming up, Exchange finds
    no Global catalog server.

    After some time DNS server service is started and the rest will then go on.
    AD starts and Exchange will come up also.

    Reolution:
    In a domain have at least 2 DNS servers to prevent this and configuer them
    to use on the NIC the other as primary DNS, you can also set itself primary
    and the other secondary, this will slow down the boot process no that much.
    In Exchange management console checkalso that all GCs are used from Exchange.

    Best regards

    Meinolf Weber
     
    Meinolf Weber [MVP-DS], Sep 18, 2009
    #3
  4. Should not use 127.0.0.1

    --
    Phillip Windell

    The views expressed, are my own and not those of my employer, or Microsoft,
    or anyone else associated with me, including my cats.
    -----------------------------------------------------
     
    Phillip Windell, Sep 18, 2009
    #4
  5. Clayton

    Hank Arnold Guest

    Argh!!! Running Exchange on a DC is really not a good idea...

    Don't use 127.0.0.1 as the DNS. Use the fixed IP you assigned to it.
    That *may* speed it up a bit. However, most, if not all is due to lack
    of a second DNS server. Best to have a second DC with DNS and make it a GC.

    --

    Regards,
    Hank Arnold
    Microsoft MVP
    Windows Server - Directory Services
    http://mypcassistant.blogspot.com/
     
    Hank Arnold, Sep 20, 2009
    #5
  6. Just to latch onto this as I'm in the process of setting up my 1st domain
    from scratch. I have two DNS servers on my domain, one at 192.168.1.100
    (Pri DC) and the other on 192.168.1.101 (Sec DC), both created using
    "DCPromo". When I created the 1st one the Pri DNS was changed to 127.0.0.1
    by DCPromo without my prompting.

    Am I right in thinking that it is best to now change my Pri DNS Server to
    use 192.168.1.101 as it's Pri DNS setting and 192.168.1.100 as it's 2nd DNS
    and vice versa on the backup DC? Is this documented anywhere on the MS
    site?

    Thanks in advance, Andrew.
     
    Andrew Staley, Sep 28, 2009
    #6
  7. Clayton

    Hank Arnold Guest

    I usually set each DC/DNS server to point to itself as the primary DNS
    and any other DNS server as secondary.

    --

    Regards,
    Hank Arnold
    Microsoft MVP
    Windows Server - Directory Services
    http://mypcassistant.blogspot.com/
     
    Hank Arnold, Sep 29, 2009
    #7
  8. Thats the best option, however our Windows 2008 & Windows 2008 R2 still take too long to boot. Are their any other speed up solutions.



    Hank Arnold wrote:

    Re: Server 2008 R2 Slow to Boot
    29-Sep-09

    I usually set each DC/DNS server to point to itself as the primary DNS
    and any other DNS server as secondary.

    --

    Regards,
    Hank Arnold
    Microsoft MVP
    Windows Server - Directory Services
    http://mypcassistant.blogspot.com/

    Andrew Staley wrote:

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    Solution to the Annoying Flickering Problem When Updating Textboxes
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    Tassawur Hussain, Oct 2, 2009
    #8
  9. Hello Tassawur,

    The only working option is to have domain DNS server up and running, so don't
    reboot all machines at once.

    Best regards

    Meinolf Weber
     
    Meinolf Weber [MVP-DS], Oct 2, 2009
    #9
  10. Clayton

    G. Brooks Guest

     
    G. Brooks, Oct 3, 2009
    #10
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