[EdLUG] ARM Servers & Storage

[Edinburgh Linux Users Group]

I can't answer the specific XU4 stuff, however I did play with making 
drive-spaces shared across multiple "machines" (be they Tin, Containers, 
VMs, or Dockers)

* NTFS is the easy solution, and pretty much works: you just ntf mount 
the same volume on each Machine - but there are two huge caveats: 1) 
There is no intrinsic file-sharing beyond "the user is logged in 3 
times", and 2) If the exporting host goes down, the NTFS export disappears

* Gluster was intersting.... but it didn't cope well with one of the 
pool nodes suddenly losing power

* I didn't get far with Ceph - I needed something that looked like a 
physical filesystem (for Apache to read from) and all I was offered from 
Ceph was an S3 API



On 22/04/17 17:53, Edinburgh Linux Users Group wrote:
> Hi all;
>
> Let's see if I can explain this clearly.
>
> I have one Odroid XU4 (octa-core) and four Odroid C2 (quad-core) and
> four 2TB WD USB hard drives. All will be using Xubuntu 16.04
> As it has more processor power, the XU4 will be the cluster master node,
> and each C2 will have one hard drive attached.
> Eventually I intend to add more hard drives and more processor nodes for
> redundancy and processing power.
>
> I'm looking for a way to pool all the hard drive space together, make it
> available across the whole cluster, and to other ad-hoc clients not in
> the cluster; maybe NFS, SMB, and a cloud solution.
>
> I've been messing around with NFS, and successfully exported an NTFS
> disk to my network.
> I've also created a logcial volume from one of the disks and mounted it.
> Now I'm replicating Xubuntu from the test node for each of the others.
>
> How do I incorporate the physical volume on a C2 node into the volume
> group on the XU4 master node?
>
> TIA.
> Keith
>
>
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-- 
Ian Stuart.
Bibliographics and Multimedia Service Delivery team,
EDINA,
The University of Edinburgh.

http://edina.ac.uk/

The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.