partitioning 4K 3 TB USB hd for 64 bit Ubuntu 11.10

Steven Davies-Morris sdavmor at
Wed Mar 7 21:39:25 UTC 2012

On 03/07/2012 01:43 AM, CJ Tres wrote:
> On 03/06/2012 03:11 PM, Steven Davies-Morris wrote:
>> On my at home media server (which doubles also as my mixing console and
>> DAW when I'm working on compositions) I have abandoned attempts to have
>> RAID1 boot drives > 2TB with GPT. I have decided to use my 2TB drives
>> with MBR for boot/swap/root/home partitions in a RAID1 setup. And then
>> use my 3TB drives with GPT for a massive RAID6 array for everything
>> else. I set the RAID1 pair up through the alternate installer. Then
>> setup the RAID6 array using Disk Utility. Started with 4*3TB and will be
>> adding in more drives later this week for 7 total.
>> Good luck on this project of yours. I'd like to see it work so I can
>> learn how to do it myself. I cut my losses and decided to not spend any
>> more time on this for now. Maybe in a couple of months I will come back
>> to this on a spare machine and hack at it until a RAID1 boot pair can be
>> done as GPT using 3TB or 4TB drives. I ran out of patience and the time
>> to continue faffing about with it. YMMV.
> Good to know I'm not alone.
> I'll keep playing with it for a bit longer but I'll probably end up
> using the big guy for data and put the OS on a smaller drive, on the
> other hand, maybe I'll get lucky.

Now I'm having an issue with adding extra drives into the RAID6 array. I
was using Disk Utility but it doesn't seem to want to do it with the
array up and running, and when I take the array down I'm denied access
to the array controls so I can't tell it to add drives. Frustrating and
makes me feel as thick as a brick. I guess I will have to do it the
old-fashioned command line way directly accessing mdadm, at a reduced
system run-level of 1.

> BTW - I'm liking the first two tracks - Systems Theory - interesting stuff!

Thanks. I'll make a one-off pitch here for anyone reading this. Go to my
bandmate Mike Dickson's site and d/l band and solo MP3s for free:


You can also hear some of the demos for the new "overfulnoisecascade"
album here:

SDM a 21st century schizoid man in SoCal
Systems Theory website
"overfulnoisecascade" CD coming soon

More information about the ubuntu-users mailing list