Open Stack

Hi Darren

Thanks for your reply, I was thinking of running the LVM based cinder
volumes cross at least two nodes. This would be to at least stay with the
unified storage rather than a SAN for block storage and object storage
across a couple of servers or another SAN unit.



Regards
Ian

Regards
Ian


On 8 April 2014 13:05, Darren Birkett <darren.birkett at gmail.com> wrote:

> Hi Ian,
>
> Unless you're going to use SSD drives in your cinder-volume nodes, why do
> you expect to get any better performance out of this setup, versus a ceph
> cluster?  If anything, performance would be worse since at least ceph has
> the ability to stripe access across many nodes, and therefore many more
> disks, per volume.
>
> - Darren
>
>
> On 8 April 2014 12:55, Ian Marshall <ian at itlhosting.co.uk> wrote:
>
>> Hi All
>>
>> I am considering storage nodes for my small production deployment. I have
>> rejected Ceph as I cant get confidence that performance will be Ok without
>> SSD drives.
>>
>> I need to be able to boot from block storage, do live migrations and
>> create snapshots which could be used to create new instances. From the
>> documentation, all this is feasible with LVM volumes. Ideally I wanted to
>> use unified storage so I can have block and object on same node.
>>
>> What I would like to know from those using LVM storage nodes is the
>> preferred set-up as I need a minimum 6Tb block storage and wonder whether I
>> could use local cinder-volumes on each compute node and a central swift
>> storage server for 'cinder backups',
>>
>> Networkiis all 10gbe.
>>
>> Can I share these volumes across my compute nodes or is it better to only
>> use local volume on each nodes for running instances from block storage on
>> that node.
>>
>> Overall I am expecting to require about 80-100 concurrent instances [VMs]
>> across two compute nodes. along with this will be multiple controller nodes.
>>
>>
>>
>> Regards
>> Ian
>>
>>
>> _______________________________________________
>> Mailing list:
>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>> Post to     : openstack at lists.openstack.org
>> Unsubscribe :
>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack/attachments/20140408/c10ac57c/attachment.html>