[CentOS] Speaking of 3Ware/RAID/SATA/9550SX...

Wed Jul 12 20:08:22 UTC 2006
Joshua Baker-LePain <jlb17 at duke.edu>

On Wed, 12 Jul 2006 at 11:00am, Mark Schoonover wrote

> Joshua Baker-LePain wrote:
>> How is your array setup?  You can *not* boot from a device >4TiB.  On
>> such a device, you must use a gpt disklabel and neither grub nor LILO
>> support such.
> My array size is 4.5TB. It's just one large single RAID5, so it's slightly
> less than 4.5TB. So, what you're saying then is to either put a small single
> HD to install CentOS, or make the array smaller than 4.5TB. I could easily
> make something much smaller, say ~1TB, install CentOS on that. Once that's
> finished, create the rest of the array as another array at the size that I
> need. Could use LVM to stitch it all together...

What I tend to do is have a secondary controller (e.g. a 8006-2) with 2 
drives as a simple mirror for the OS, and then use all the drives on the 
9550 for the data partition.  My latest system even has those 2 drives in 
a hot-swap carrier accessible from the back (in addition to the 24 drives 
accessible from the front).

But, yes, creating multiple arrays (or enabling auto-carving on the 3ware) 
will work as well.

Joshua Baker-LePain
Department of Biomedical Engineering
Duke University