Rackspace cloud files help

A key characteristic of Cloud Files is eventual consistency. In computing, the CAP Consistency, Availability, and Partition Tolerance theorem states that distributed systems cannot achieve consistency, availability, and network failure tolerance—they can achieve only two.

For example, a system can be consistent that is, all reads get the most current data and handle network failures, but they must sacrifice availability to do so.

Or, a system can choose to handle network failures and have perfect availability, but they must sacrifice consistency to do so. Distributed systems must always handle network failures, so they must choose to sacrifice either availability or consistency. Storage systems become distributed as they grow. OpenStack Swift the basis for the Rackspace Cloud Files service sacrifices consistency for availability and network failure tolerance.

This choice enables the system to scale to enormous levels and provide massive uptime, but it also means that in certain scenarios, some data might not update throughout the entire system. For example, a container listing might not update after the system writes an object. OpenStack Swift queues the container listing update and allows the object write to succeed.

This sort of consistency model is called eventual consistency. Yes, you can view the Rackspace Cloud Terms of Service. When the upload succeeds, the system removes the CORS headers. By allowing the browser to upload directly to the Cloud Files API, you can achieve maximum upload performance. There are no permissions or access controls around containers or objects other than dividing them into separate accounts.

Users must authenticate with a valid user name and API Access Key, but they can create or delete containers and objects within that account after authentication.

At this time, there is no way to publicly access the objects stored in Cloud Files unless that container publishes to CDN. Rackspace customers are not generally flash developers but still want to use a streaming offer. Some vendors dominate the market, and we plan to support each of them. As Akamai adds support for more players, our customers gain access to them.

Following are just a few reasons the market is moving towards HTTP:. Cloud Files CDN does not support exposing a custom crossdomain. OpenStack Swift uses the crossdomain. You cannot modify the file for multiple tenants, such as our Rackspace Public Cloud.

For more information, see Cross-domain Policy File. If your site requires a custom crossdomain. Rackspace CDN allows you to customize your configuration and define your own origin web server. When you create a container in Cloud Files and make that container public, the files within that container have a designated time to live TTL. Akamai Technologies, Inc. Akamai has a pervasive, highly distributed cloud optimization platform with over 73, servers in 70 countries within nearly 1, networks. Rackspace expects no customer impact during your transition to Akamai.

At this time, we do not have any plans to discontinue the legacy URLs. This does not mean that old URLs are invalid. Yes, the Rackspace Cloud now supports the transfer and storage of larger files. Following is a list of frequently asked questions about our support of large files. Although support for uploading content to Cloud Files through the Cloud Control Panel is for files smaller than 5 GB, we can accommodate the transfer of files larger than 5 GB by allowing you to segment your files into multiple file segments.

Rackspace does not enforce any lower limits on the file size. File segments cannot be larger than 5 GB, and we recommend not storing file segments that are smaller than MB. We have created a tool called Swift to make this process easier. Rackspace Cloud Files charges per gigabyte for file storage, which is how most cloud IaaS providers work.

The price per gigabyte is based on how much you actually store in Rackspace Cloud Files. The more you store, the less you have to pay per gigabyte. For those that use Cloud Files content delivery network CDN containers, there are also bandwidth charges. To get there, click the login button. That includes viewing and creating support tickets, viewing and creating alerts, and accessing knowledgebase and product news articles. There are also quick build templates for building static websites, virtual servers and databases, among other things.

The only steps required to create your container are to choose a container name, a region and one of three types: private, public or static website. Choose the region closest to you for faster file transfers. Doing so will come in especially handy for online backup, which might involve initial uploads of hundreds of gigabytes. The static website type is for hosting drumroll static websites.

To add files to a container, or access files within it, just click the container name. Thankfully, there are several far more efficient methods of getting your files into Cloud Files, including using bulk upload with an FTP, online backup or cloud storage client.

The API key is used to identify calling programs, like CloudBerry Backup, preventing malicious programs from gaining access to your Cloud Files containers.

An FTP client is a tool that lets you upload and download files to a server. When that link is accessed, the CDN serves the photo. Use the Feedback tab to make any comments or ask questions. You can also start a conversation with us. How—To Home. Edit this article. Authored by: Stephanie Fillmon.