[ale] can this install be saved?

[Preston]

On 3/4/2015 10:16 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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I've not tried, but I wonder if you could use fsarchiver to save to a
file. Then you could put things in a RAID5 and restore.

Would be an interesting exercise.

Preston

-- 
Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
-Dr. Seuss

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