2TB partition size limit

PRIMERGY, PRIMEPower

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Huracan
Posts: 6
Joined: Tue Sep 08, 2009 14:23
Product(s): FibreCAT SX80 iSCSI - Primergy RX300S4

2TB partition size limit

Postby Huracan » Thu Apr 19, 2012 7:46

Hi, I need your help.
I am trying installing Windows 2008 R2 Enterprise on a Primergy TX300S6 with 4 HDDs 1TB RAID0 - Tot. 3,8 TB
Serverstart creates a small partition for Operating System and two other partitions, 1,9 TB and 1,8 TB but the second one can't be formatted (in disk management the option is dimmed).
I am trying to change the boot mode in Serverstart from MBR Legacy to GPT but I can't find where the options is.
Anyone with a solution to this?
Thanks for help.

me@work
Posts: 1024
Joined: Thu Jun 22, 2006 15:32
Product(s): Scaleo Pi2662, Primergy

Re: 2TB partition size limit

Postby me@work » Thu Apr 19, 2012 11:05

I'm not going to discuss the sense of humour in creating a RAID0 here. Everyone has to decide on how valuable to treat one's data on his or her own.

But currently, there does not seem to exist an option to install Windows operating systems in GPT mode using recent ServerStart IM versions.

As a circumvention, you could try and manually create two virtual disks: the first one for the OS installation using ServersTart IM, and a second one (the big remainder), which you partition&format in GPT mode from the installed Windows OS afterwards.

Davie
Posts: 567
Joined: Fri Jun 10, 2005 0:01
Product(s): PRIMERGY, ServerView
Location: UK

Re: 2TB partition size limit

Postby Davie » Thu Apr 19, 2012 11:26

I believe you also require UEFI BIOS Support to have GPT boot capability - and UEFI support is not yet available on TX300 S6

Huracan
Posts: 6
Joined: Tue Sep 08, 2009 14:23
Product(s): FibreCAT SX80 iSCSI - Primergy RX300S4

Re: 2TB partition size limit

Postby Huracan » Thu Apr 19, 2012 13:02

Thank you very much.
That's the answer I was searching for.

me@work
Posts: 1024
Joined: Thu Jun 22, 2006 15:32
Product(s): Scaleo Pi2662, Primergy

Re: 2TB partition size limit

Postby me@work » Fri May 18, 2012 11:29

Just for the records, I would like to add the following here:

Davie's answer is true in respect of Windows and other (older) OSes. And of the TX300s6 hardware, of course.

But in general, it depends on how smart your boot manager actually works.

It is true that older BIOSes only understand MBR and not GPT. But a GPT disk also carries a "protective MBR", which can be read by a non-UEFI BIOS. Regardless of the data organisation used on it, a disk remains a sequence of n-byte blocks.

Latest versions of grub and lilo (and others, probably) now are smart enough to add GPT capability to the boot sequence controlled by them, and allow to boot their supported OSes located on GPT disks connected to non-UEFI boards.

babek
Posts: 33
Joined: Thu Dec 13, 2007 7:18

Re: 2TB partition size limit

Postby babek » Fri Sep 28, 2012 6:45

Hi.
I have 3 rx 300 s7 servers. two of them have 12x600 gb sas hdd. one have 16x600 gb hdd. I am trying to configure raid on them. There is a misunderstanding about configuring the raid. The server which holds 16 hdd i create raid6 and i am having 7tb space. But the server gives me only 2 tb space to use. Other 5 tb is not usable. and i cannot do anything with this partation. Why?

Tiderian
Posts: 40
Joined: Wed Aug 22, 2012 7:18
Product(s): RX900

Re: 2TB partition size limit

Postby Tiderian » Mon Oct 01, 2012 11:38

babek wrote:Hi.
I have 3 rx 300 s7 servers. two of them have 12x600 gb sas hdd. one have 16x600 gb hdd. I am trying to configure raid on them. There is a misunderstanding about configuring the raid. The server which holds 16 hdd i create raid6 and i am having 7tb space. But the server gives me only 2 tb space to use. Other 5 tb is not usable. and i cannot do anything with this partation. Why?


You neednt operate in 2 Threads for the same topic...you got your answer in the other thread...its a windows issue in your case...


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