Currently an automatic backup happens every day at a time you select and kept for roughly 10 years. this could create an awful lot of data in Azure that you don't need and don't want to pay for.
Please allow Backup policy modifications.

A lot of companies don't want to introduce iSCSI to their network infrastructure, making StorSimple really hard to sell. They like the idea for fileservers, and appreciate the redundancy a physical device can deliver.
Basically they're looking for StorSimple Virtual Array functionality, in the physical appliances: SMB Shares

Allow multiple StorSimple appliances to be clustered (use an IB link or something between them to keep data in sync) for automatic failover in the event the primary node fails or needs to be taken offline.

Currently once you have created the 1200 you can't resize the underlying virtual disk which is very limiting. You would have to delete the whole array and recover to a new one.

Currently once a share is created it cannot be be made larger even if there is free space on the array/cloud.

If a share fills up you have to create a whole new share and redirect users which is very inconvenient.

1 Million files per share MAX limit is not realistic for shares that can be up to 20TB in size. 1 Million files isn't enough to accommodate your average file share on a file server.

Also, 4 Million files per StorSimple Virtual Array is also extremely limiting.

It would be very useful of these limits were raised significantly.

Currently the StorSimple Virtual Applicances 8010 and 8020 only support ASM Virtual Network but that's not the way to go forward. This limitation requires me to setup a VNet-to-VNet gateway.

The old StorSimple manager in the classic portal lacks the ability to easily perform certain functions. Such as a custom name for your backup policies, custom reports etc. The user experience is poor.

Implement ability to limit bandwidth utilization overall and on a schedule

Need ability to have support of different roles and access for tasks based on those roles.

Please provide back the Volume (LUN) rename capability you have recently removed in the StorSimple Manager

Ability to restore individual files without having to use VSS or mounting of a snapshot. Would improve the experience especially when one of SS main sales pitch is File Server data.

Similar to Veritas and Veeam, provide support for DPM

As written here http://feedback.azure.com/forums/258995-azure-backup-and-scdpm/suggestions/6831679-storsimple (sorry for cross-posting) I think the StorSimple Device is perfectly suited to act as a Virtual Tape Library i. e. for DPM.
Maybe something for future releases.

A command would be interesting to validate the transfer rate of files to the internet.

The StorSimple appliances should be able to automatically support a lazy write to Azure for all data changing on the appliance. This would help protect data in a more timely manner than a cloud snapshot.

One customer of me asked if it is possible to save data in a way that the saved data is audit compliant (change of data written to StorSimple not possible, i. e. for accounting data). Actually 3rd party software needed.

Maybe an option for a future release.

My customer need PowerShell command to collect "Used Cloud Storage" of StorSimple, because they want to make their original report around StorSimple.

Could you provide us the such kind of PowerShell command for future ?