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• To increase the number of parallel uploads, multiple SSVMs needs to be created. This will be handled automatically by the management server using the SSVM scale up mechanism (system.vm.auto.reserve.capacity, secstorage.capacity.standby and secstorage.session.max configuration variables).
• TBD: number of parallel uploads a single SSVM can handle

UI Changes

A new register template and UI to upload volume UI /template which should be able to accept "browse and upload" file. 

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1. Browser UI requests the upload form by doing the getUploadParams api call. 
2. Management Server returns a upload url, params payload json string which should be passed on to the upload url while doing the upload
3. UI shows an upload dialog with a way to browse and upload file.
4. User chooses a file and posts on the url.
5. The post request completes once the template is downloaded/errored. 
6. The user can close the dialog(Post request should still be active) and use list page to check the status of it.

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