Hi Daan. As Nux has already highlighted, disk IO is the critical factor for high performance database applications.
Using local storage within the Hypervisor will only provide very limited IOPS, even with 15k SAS disks. We have been doing a lot of work with SolidFire storage recently. In my opinion they are simply the best storage option available for CloudStack, and have a plugin which integrates it directly with CloudStack. Regards Geoff Higginbottom CTO / Cloud Architect D: +44 20 3603 0542<tel:+442036030542> | S: +44 20 3603 0540<tel:+442036030540> | M: +447968161581<tel:+447968161581> geoff.higginbot...@shapeblue.com<mailto:geoff.higginbot...@shapeblue.com> | www.shapeblue.com<htp://www.shapeblue.com/> | Twitter:@cloudstackguru<https://twitter.com/#!/cloudstackguru> ShapeBlue Ltd, 53 Chandos Place, Covent Garden, London, WC2N 4HS<x-apple-data-detectors://5> On 3 Mar 2014, at 11:43, "Nux!" <n...@li.nux.ro<mailto:n...@li.nux.ro>> wrote: On 03.03.2014 11:22, P??kk?nen Pekka wrote: Hi Daan, Maybe I should have been clearer. I was wondering about the implications for performance. Would performance in a database clustering use case be better with plain Xen (or other virtualization solution), when compared to CloudStack with Xen? Or is this an unnecessary concern? Also, is CloudStack aimed for clusters consisting of tens/hundreds of such rack servers, or is it suitable also for smaller deployments? Cloudstack can grow from 1 to many servers. Re hypervisor, if you want to run databases then IO will be your main concern. At some point the hypervisor will not matter, your disks will matter. I'd look at investing in SSDs. You can also look at conainer technology such as openvz and LXC which usually have better IO (since they access the hardware directly). -- Sent from the Delta quadrant using Borg technology! Nux! www.nux.ro<http://www.nux.ro> Need Enterprise Grade Support for Apache CloudStack? Our CloudStack Infrastructure Support<http://shapeblue.com/cloudstack-infrastructure-support/> offers the best 24/7 SLA for CloudStack Environments. Apache CloudStack Bootcamp training courses **NEW!** CloudStack 4.2.1 training<http://shapeblue.com/cloudstack-training/> 18th-19th February 2014, Brazil. Classroom<http://shapeblue.com/cloudstack-training/> 17th-23rd March 2014, Region A. Instructor led, On-line<http://shapeblue.com/cloudstack-training/> 24th-28th March 2014, Region B. Instructor led, On-line<http://shapeblue.com/cloudstack-training/> 16th-20th June 2014, Region A. Instructor led, On-line<http://shapeblue.com/cloudstack-training/> 23rd-27th June 2014, Region B. Instructor led, On-line<http://shapeblue.com/cloudstack-training/> This email and any attachments to it may be confidential and are intended solely for the use of the individual to whom it is addressed. Any views or opinions expressed are solely those of the author and do not necessarily represent those of Shape Blue Ltd or related companies. If you are not the intended recipient of this email, you must neither take any action based upon its contents, nor copy or show it to anyone. Please contact the sender if you believe you have received this email in error. Shape Blue Ltd is a company incorporated in England & Wales. ShapeBlue Services India LLP is a company incorporated in India and is operated under license from Shape Blue Ltd. Shape Blue Brasil Consultoria Ltda is a company incorporated in Brasil and is operated under license from Shape Blue Ltd. ShapeBlue is a registered trademark.
