+ Post New Thread
Results 1 to 5 of 5
Windows Server 2008 R2 Thread, Help needed to understand UEFI in Technical; Hi guys, please forgive me as im alittle confused. i have a dell server (r610) 6c xeon with 6 x ...
  1. #1

    Join Date
    Jun 2011
    Location
    Atherton
    Posts
    112
    Thank Post
    13
    Thanked 6 Times in 1 Post
    Rep Power
    9

    Help needed to understand UEFI

    Hi guys,

    please forgive me as im alittle confused.

    i have a dell server (r610) 6c xeon with 6 x 600gb discs in RAID5, -one lost to the RAID and -one as a hotswap/dormant drive giving me 2.4TB of storage.

    i installed server 08 r2 onto this server and disc manager reported alot of "unusable space"

    after alittle research it seems its because my volume exceeds 2TB.

    If i enable UEFI and reformat the discs to GPT will i be able to boot from this GPT volume or do i need a Itanium based system for that?

    or do i have to have a RAID1(MBR) for the OS and a RAID5(GPT) for the data volume?

    thx

  2. #2
    jamesfed's Avatar
    Join Date
    Sep 2009
    Location
    Reading
    Posts
    2,214
    Thank Post
    138
    Thanked 347 Times in 293 Posts
    Rep Power
    90
    Server 2008 R2 of any edition will boot from a UEFI volume.

    With our non UEFI motherboards on our HPs I create two logical disks using the HP RAID controller one about 120GB (for the OS which is MBR compatible) and then use the remainder as a non bootable GPT disk.

  3. #3

    Join Date
    Jun 2011
    Location
    Atherton
    Posts
    112
    Thank Post
    13
    Thanked 6 Times in 1 Post
    Rep Power
    9
    Quote Originally Posted by jamesfed View Post
    Server 2008 R2 of any edition will boot from a UEFI volume.
    even if the motherboard doesn't support UEFI?

    eg, non UEFI MOBO, raid5 c: @ 4TB(gpt), would the server boot if running 08 R2 @ see the full 4TB

    or

    UEFO MOBO, raid5 c: @ 4TB (gpt), would the server boot if running 08 R2 @ see the full 4TB

    Quote Originally Posted by jamesfed View Post
    With our non UEFI motherboards on our HPs I create two logical disks using the HP RAID controller one about 120GB (for the OS which is MBR compatible) and then use the remainder as a non bootable GPT disk.
    on my server (UEFI supported) could i have OS C: (GPT) and DATA D: (GPT) where you have a OS C: (MBR) data D: (GPT).

    what are the benifits of me using GPT over MBR if the Boot volume is not going to be bigger than 2TB.... i was under the inpression i needed a Itanium based cpu aswell as running Itanium-server 2008 r2 to be able to boot from a gpt volume, even tho i have a UEFI supported MOBO

    thx for taking the time to answer my questions.
    Last edited by jahilton2002; 14th February 2012 at 09:04 PM.

  4. #4


    Join Date
    Feb 2007
    Location
    51.403651, -0.515458
    Posts
    9,653
    Thank Post
    253
    Thanked 2,918 Times in 2,149 Posts
    Rep Power
    831
    Quote Originally Posted by jahilton2002 View Post
    even if the motherboard doesn't support UEFI?
    The server (and RAID controller) must support UEFI to boot from a GPT formatted drive. All versions of Windows Server (starting with Windows Server 2003 SP1) can use GPT partitioned disks for data however.

    Quote Originally Posted by jahilton2002 View Post
    UEFI MOBO, raid5 c: @ 4TB (gpt), would the server boot if running 08 R2 @ see the full 4TB
    Yes, although it's generally recommend not to use RAID-5 for your OS drive. RAID-1 would be a better choice, with RAID-5 (or 6) for your data.

    Quote Originally Posted by jahilton2002 View Post
    what are the benefits of me using GPT over MBR if the boot volume is not going to be bigger than 2TB
    With UEFI, you don't get a choice...

    When you deploy Windows to an EFI-based or UEFI-based computer, you must format the hard disk drive or other persistent storage device that includes the Windows partition by using a GUID partition table (GPT) file system. Additional drives might use either the GPT or the master boot record (MBR) file format. (Source)
    Quote Originally Posted by jahilton2002 View Post
    I was under the impression I needed a Itanium based CPU as well as running Itanium-server 2008 r2 to be able to boot from a GPT volume
    Not any more. Even my home computer boots just fine from a GPT formatted SSD and all I have is a standard x86-64 Intel processor (Core i5-2500K), a UEFI motherboard (Asus Maximus IV Gene-Z/Gen3) and a 64-bit edition of Windows 7.

  5. #5

    Join Date
    Jun 2011
    Location
    Atherton
    Posts
    112
    Thank Post
    13
    Thanked 6 Times in 1 Post
    Rep Power
    9
    Quote Originally Posted by Arthur View Post
    The server (and RAID controller) must support UEFI to boot from a GPT formatted drive. All versions of Windows Server (starting with Windows Server 2003 SP1) can use GPT partitioned disks for data however.


    Yes, although it's generally recommend not to use RAID-5 for your OS drive. RAID-1 would be a better choice, with RAID-5 (or 6) for your data.


    With UEFI, you don't get a choice...




    Not any more. Even my home computer boots just fine from a GPT formatted SSD and all I have is a standard x86-64 Intel processor (Core i5-2500K), a UEFI motherboard (Asus Maximus IV Gene-Z/Gen3) and a 64-bit edition of Windows 7.
    thx alot. this helps me loads



SHARE:
+ Post New Thread

Similar Threads

  1. Help needed to rationalise servers
    By actech in forum Wireless Networks
    Replies: 9
    Last Post: 31st August 2009, 07:40 PM
  2. Replies: 4
    Last Post: 25th February 2009, 07:26 PM
  3. Help needed to explain BSF
    By witch in forum BSF
    Replies: 6
    Last Post: 17th March 2008, 01:22 PM
  4. Replies: 11
    Last Post: 6th September 2007, 08:10 PM
  5. Help needed to reconfig my DC's
    By tosca925 in forum Windows
    Replies: 16
    Last Post: 20th November 2006, 11:45 PM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •