[ale] can this install be saved?

[coverturtle]

Here's a thought: be flexible.  Install the raid on one of the machines 
to give
the students familiarity with the performance of one verses the other.
On the other machine(s?) create a server install on one of the disks,
a desktop on another, and so one.

on the single disks use the main one to have the same file system
(Ext4 for example) as the raid for comparison.
On the remaining single disks, try btrfs and others,
possibly with desktop versions of ubuntu.

Remember, desktop versions can support X-windows which supports
remote logins.

Just a thought.  YMMV!  Good luck and have fun!

On 03/04/2015 11:16 AM, Todor Fassl wrote:
> A researcher turned in a couple of old Sun Fire X4150 machines. I am 
> tasked with turning them into a sandbox for students to play around 
> with slurm, condor, etc.   I asked a co-worker to install ubuntu 
> server on them but at the time, I didn't know each machine had 4 147G 
> disks. I believe she did a standard ubuntu install and just put it on 
> the first disk.
>
> root at cartan:~# fdisk -l | grep G
> Disk /dev/sda: 146.7 GB, 146685296640 bytes
> Disk /dev/sdb: 146.7 GB, 146685296640 bytes
> Disk /dev/sdc: 146.7 GB, 146685296640 bytes
> Disk /dev/sdd: 146.7 GB, 146685296640 bytes
> Disk /dev/mapper/cartan--vg-root: 133.5 GB, 133513084928 bytes
> Disk /dev/mapper/cartan--vg-swap_1: 12.9 GB, 12880707584 bytes
>
>
> Should I start over and configure RAID or should a use the 3 empty 
> disks to configure a DNFS? I have to configure a distributed network 
> file system anyway so that when a student logs into one machine, he 
> gets the same home dir as if he logged onto the other. I usually set 
> up gluster and then make the gluster volume their home directory.
>
> So I could just use the 3 empty disks on each machine as a gluster 
> home directory space and then do triple replication.
>
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