I’ve created these flashcards on AWS VPC limits as I’m currently studying for AWS certification – maybe useful to some as a study aid! Note that some of the limits can be increased by submitting a request. Check out the link at the bottom of the page for more information. [click to continue…]
The intention of this post is to take a look at storage policies, storage vMotion and Storage DRS from a design perspective, to address the exam objective focusing on these technologies. The idea here is not to explain the technologies in detail, there’s plenty of information else where – instead I will look to highlight some of the factors relating to these technologies that should be kept in mind when designing a solution that makes use of them.
Storage policies are very useful in regards to VM provisioning as they can place a virtual machine on appropriate storage depending on what it’s requirements are.
Storage policies in vSphere 6 use a different format to vsphere 5.x (where they were known as storage profiles). I’ve written about how to configure storage profiles previously. When upgrading to vSphere 6, any existing storage profiles are automatically converted to storage policies, though some of the terminology changes. Instead of Virtual Machine Storage Profiles, System Defined Capabilities and User Defined Capabilities, we have Virtual Machine Storage Policies, Storage Specific Data Services, Datastore Tags and Common Data Services. Though some of the terminology has changed, the concept remains the same – you apply a storage policy to a virtual machine, and place VMs on datastores that match the requirements set in the policy. If all is good, then the VM will be compliant with its attached storage. [click to continue…]