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.birk...@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 <i...@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@lists.openstack.org >> Unsubscribe : >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >> >> >
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