On Tue, 28 Nov 2006 at 12:56pm, Kevan Benson wrote
I have a 3.5 TB RAID 5 Array through a 3ware 9590SE 8 port card, and am running into what seems like quite a lot of problems trying to get the system installed correctly. The system is a running dual Opterons with 2 GB of RAM, and I'm attempting to install through the x86_64 ServerCD. First, grub refuses to install on the disk, as it's too large. I can get around this though by booting Fedora Core 6 in rescue mode and running grub, as it can deal with the disk size correctly. This might only be working when I attempt installs that don't utilize as much of the array as possible though (100 MB /boot, 2GB swap, 10Gb /, the rest left unallocated). Secondly, there seems to be a problem using msdos disk labels with large partitions, and I can't seem to find any solutions to this in the manuals or on the net. GPT labels are offered as a solution to this but only for Itanium systems. Am I missing some obvious solution to this? Are there some best practices for dealing with large disks anyone can share that may save me problems now or later? I'm open to suggestions, as all I've encountered so far are problems.
1) You cannot use a msdos disk label on a disk >2TiB. You must use GPT. 2) No current boot loader understands GPT disk labels. 3) Therefore, you cannot boot from a disk >2TiB. Possible solutions are: 1) Install a 2nd disk/array for the OS, and use the big array for data. 2) Turn on the 3ware's auto-carving feature, which will divide the single RAID volume into multiple disks, none larger than 2TiB. -- Joshua Baker-LePain Department of Biomedical Engineering Duke University _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos
