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MBR or GPT


Joe_Miner

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Thanks for the information however there is one thing to note that is not covered. GPT partitions are not supported by most backup programs. Acronis needs a paid option, and others do not support it at all so use with caution and do your homework before going down this road to make sure that what you are doing for backup will work. The issue is not so much backup but restore portion is a problem.

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I looked into this one time and found that GPT was superior to MBR for a couple of reasons, most notably:

 

" GPT disks use primary and backup partition tables for redundancy and CRC32 fields for improved partition data structure integrity."

 

Source : http://msdn.microsof...e/gg463525.aspx

 

Thanks -- I've been trying to read up on it -- appreciate the link. Do you use GPT then?

 

The big issue I'm seeing/reading with GPT is backup/restore. I'm wondering about experience with mirroring GPT drives?

 

Thanks for the information however there is one thing to note that is not covered. GPT partitions are not supported by most backup programs. Acronis needs a paid option, and others do not support it at all so use with caution and do your homework before going down this road to make sure that what you are doing for backup will work. The issue is not so much backup but restore portion is a problem.

 

Thanks PCDoc.

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Thanks for the information however there is one thing to note that is not covered. GPT partitions are not supported by most backup programs.

whs2011 supports gpt backup right? My raid array is a gpt partition and while I've only had do a restore once, it went off without a hitch.

 

 

Thanks -- I've been trying to read up on it -- appreciate the link. Do you use GPT then?

I use gpt for all of my data drives..mbr for boot drives of course as nothing I have supports efi

Edited by tojoski
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whs2011 supports gpt backup right? My raid array is a gpt partition and while I've only had do a restore once, it went off without a hitch.

 

 

I use gpt for all of my data drives..mbr for boot drives of course as nothing I have supports efi

 

Quote

 

 

WHS 2011 does not support GPT natively. It will backup files from it if they are on your server, however if a GPT is on your client you are in for some trouble.

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I hope that by the time Windows 8 is released, Microsoft will fix the UEFI OS backup issue on WHS2011. I'm guessing that UEFI motherboards will become the new standard mainly because of the simpler graphics interface.

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Quote

 

 

WHS 2011 does not support GPT natively. It will backup files from it if they are on your server, however if a GPT is on your client you are in for some trouble.

 

Sorry for the thread Hijack, OP

 

I'm gonna eat my own words, as I just checked and my 2 data drives on my primary desktop are in fact MBR.. the only GPT partition I have is the 3.6TB raid array on the server..

 

Which interestingly enough, I was able to trick WHS2011 into backing up by configuring through "windows server backup" through RDP instead of the console... once configured the backup

configuration shows in the console :)

 

Here's a good post. GPT backups are discussed in the comments http://gcoupe.wordpr...me-server-2011/

 

WHS will backup GPT drives and restore files, but there are negative results when restoring a GPT boot partitions. GPT boot drives are found on UEFI supported motherboards running Windows 7.

 

Do you know if the windows server backup in 2008r2 has the same limitation? I have a client that is booting 2008r2 from a 5TB array, EFI supported server board and raid card of course, and using windows server

backup to backup the array..

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The BYOB did a couple of podcast on this about 6 months ago. Tim tried several ways and could not get it to work and I tried using Acronis and it was a mess. The punchline is stay away from GPT for boot drives.

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