what is GPT, and other partitioning questions (centos x64, large RAID array)
Last night I assembled a new server... dual Intel quad core Xeons, 16GB RAM, Intel S5000PSL mobo (with latest BIOS), 3ware 9550SXU with a 2TB RAID5 array.
When I first booted the CentOS 5.1 install DVD, I went into disk partitioning and made a 15GB /, swap, and the rest in /home. CentOS displayed an error about the system not supporting booting from GPT. (Is there a way to get this to work?)
I went back into the RAID controller and "carved" a 15GB volume for the OS, which shows as sda, the rest shows as sdb. Upon reboot the CentOS installer displayed a message about not having a GPT scheme any longer and created dos disklabels (I think).
Are dos disklabels limited to <2TB? (Near) Future plans include expanding the array, and I'd like to avoid having several "carved" drives only to recombine them into a big single partition with LVM.
If GPT is required for larger than 2TB volumes, is it possible to make only sdb have GPT and will sda still boot the OS properly?
Any hints or info? Anything additional I can post to help you help me? I really don't want to end up in a situation where I will have to rebuild this system after it's in production. I've never dealt with volumes this large, and had assumed it would just work like normal. =(
Last edited by whysyn; 03-14-2008 at 09:11 AM.