[ovirt-users] small cluster

[urthmover]

After further investigation and reading.  Glusterfs is not really designed for database operations.  So I am retracting one question and curious about anyone’s thoughts regrading the new set of questions.

Should I partition the mirrored pair into two slices (100GB and 800GB).  Then present ovirt with 10 storage domains each being a 100G partition for the OS of each guest.  Then use nfs for the 800G /data partitions (not using /data as a storage domain within overt, just as plain old nfs mounts hard coded to each guest machine)

Should I present each mac mini’s mirrored pair as an nfs share to ovirt-engine?  This would create 10 1TB storage domains.  Then create 10 large 800GB /data partitions (a /data for each guest).

Should I NOT use ovirt and just run each mac mini as a mirrored pair of disks and a standalone server?

-- 
urthmover

On July 16, 2014 at 12:12:16 PM, urthmover (urthmover at gmail.com) wrote:

I have 10 mac minis at my disposal.  (Currently, I’m booting each device using a centos6.5 usbstick leaving the 2 disks free for use)

GOAL:
To build a cluster of 10 servers running postgres-xc

EQUIPMENT:
10 mac mini:  i7-3720QM at 2.60GHz/16G RAM/1x1gbit NIC/2x1TB SSDs (zfs mirrored)

REQUEST:
Please run the software application postgres-xc (a multi-master version of postgres).  I'm told by the DBA that disk IO is the most important factor for the tasks that he’ll  be running.  The DBA wants 10 servers each with a 50G OS partition and a 800GB /data.

THOUGHTS:
I have a few ideas for how to accomplish but I'm unsure which is the best balance between disk IO and overall IT management of  the environment.

QUESTIONS FOR THE LIST:
Should I present each of the 10 mac mini’s mirrored disks to glusterfs thus creating a large 10TB storage area.  Then connect the storage area to ovirt-engine creating on 10TB storage domain, and use it as the storage domain for 10 large 800GB disks (a /data for each guest) ?

Should I present each mac mini’s mirrored pair as an nfs share to ovirt-engine?  This would create 10 1TB storage domains.  Then create 10 large 800GB /data partitions (a /data for each guest).

Should I NOT use ovirt and just run each mac mini as a mirrored pair of disks and a sandalone server?

LASTLY:
I’m open to any other thoughts or ideas for how to best accomplish this task.

Thanks in advance,

-- 
urthmover
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