It looks like you already have a solution, but you could always create two arrays, mirroring the 500GB drives. Then, create / and /boot partitions from the 500GB mirror and put the rest of the 500GB + the remaining space in the array into an LVM and carve it up however you see fit. I suppose that would could work if you weren't using a 3ware card.. On 11/28/06, Kevan Benson <kbenson at a-1networks.com> wrote: > > On Tuesday 28 November 2006 13:07, chrism at imntv.com wrote: > > 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. > > > > On two different systems with hardware similar to yours, I ended up > > using 2 different solutions. :) On one, I simply replaced 2 of the > > 750gig 'cudas in an 8 disk array with 160gig drives and then created a > > RAID1 on those 2 drives for the OS. After the OS was installed, I then > > used parted to create the gpt label on the large array and created the > > filesystem on it. > > > > On another system, I really needed the ports on the 3ware for the array > > so I installed a pair of 160gig drives using a cheapo dual port SATA > > card and used software RAID 1 on those two drives for the OS install. > > After the system was installed, I then used parted to create the GPT > > label on the large array and created the filesystem on it. > > > > If you go back through the list archives a bit, you'll see a bunch of > > very useful information from a couple of months ago where a number of > > people offered excellent tuning suggestions. If you get stuck, shoot me > > some email off list and I'll see if I can give you a hand. > > Thanks for all the suggestions, and to Joshua for mentioning 3ware's > carving, > which I wasn't aware of before this. > > Carving with LVM to append portions into a large LV seems to be the > solution > I'm leaning towards, as it seems to be the easiest to implement "out of > the > box" and I expect it will cause the least issues in the long run as > there's > no room in the chassis for more drives (it also has a tape drive) and > dedicating one or two 500 GB drives to an install array seems wasteful. > > -- > - Kevan Benson > - A-1 Networks > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20061201/e9d78a9c/attachment-0003.html>