Hi Geoff, Many thanks for that, very useful information and definitely explains what I have been seeing.
Cheers! On Tue, Apr 28, 2015 at 2:25 PM, Prashant s <opsrunb...@gmail.com> wrote: > Thanks Geoff, i wasnt aware of this global setting ! this feature will > speed up my vm deployments !!!! > > "This automatic clean up can be disabled by updating the global setting > storage.template.cleanup.enabled" > > > Thanks > prashant S > > On Tue, Apr 28, 2015 at 7:58 AM, Geoff Higginbottom < > geoff.higginbot...@shapeblue.com> wrote: > > > The first time a template is used, it is copied from Secondary to > Primary, > > then the VM is created, and in the case of XenServer is created as a > > Œlinked clone¹. This linking of the VM to the Template means that whilst > > there are VMs allocated to Primary Storage, the templates that the VMs > are > > using will always remain on Primary Storage. > > > > If a 2nd VM is created based on the same template, the template is > already > > on Primary Storage so is not copied again. > > > > If all the VMs which were using a Template are deleted or migrated to > > alternate storage, the Template is no longer required and will be deleted > > from Primary Storage. > > > > This automatic clean up can be disabled by updating the global setting > > storage.template.cleanup.enabled > > > > 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 | 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 28/04/2015 15:13, "cs user" <acldstk...@gmail.com> wrote: > > > > >Hi All, > > > > > >Quick question with regards to xenserver and deploying a cloudstack > > >instance from a template stored within secondary storage. > > > > > >In this case it is secondary storage using NFS and deploying to local > disk > > >on the xenserver. (cloudstack 4.3, Xen 6.0.1) > > > > > >I believe this script is used to pull down the template: > > >/opt/cloud/bin/copy_vhd_from_secondarystorage.sh > > > > > >I'm seeing a big variation when deploying 3 servers, for example. 2 of > the > > >servers might start very quickly and one may take longer. > > > > > >Is there any caching of the template taking place on the xen host its > > >self? > > >If a host has previously deployed a template, and is then asked to > deploy > > >a > > >new instance using the template, will it have to go back to secondary > > >storage again or can it use a local cache of the vhd file? > > > > > >Many thanks in advance for any responses. > > > > > >Cheers! > > > > Find out more about ShapeBlue and our range of CloudStack related > services > > > > IaaS Cloud Design & Build< > > http://shapeblue.com/iaas-cloud-design-and-build//> > > CSForge – rapid IaaS deployment framework<http://shapeblue.com/csforge/> > > CloudStack Consulting<http://shapeblue.com/cloudstack-consultancy/> > > CloudStack Software Engineering< > > http://shapeblue.com/cloudstack-software-engineering/> > > CloudStack Infrastructure Support< > > http://shapeblue.com/cloudstack-infrastructure-support/> > > CloudStack Bootcamp Training Courses< > > 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 SA Pty Ltd > is > > a company registered by The Republic of South Africa and is traded under > > license from Shape Blue Ltd. ShapeBlue is a registered trademark. > > >
