Cloud services do occasionally fail, e.g. hardware or network failure, bugs, etc. The following URLs provide the current status for a cloud service:


Amazon S3: https://status.aws.amazon.com/


Azure: http://azure.microsoft.com/en-us/status/


Backblaze B2: https://twitter.com/backblaze or https://www.backblaze.com/scheduled-maintenance.html


Box: https://status.box.com/


Dropbox: https://status.dropbox.com/


Egnyte: https://status.egnyte.com/


Google Drive: https://www.google.com/appsstatus#hl=en&v=status


Google Storage: https://status.cloud.google.com/


hubiC: http://status.ovh.net/


OneDrive: https://admin.microsoft.com/servicestatus


Office 365 and SharePoint: https://status.office365.com/


OVH: https://status.us.ovhcloud.com/


Rackspace: https://rackspace.service-now.com/system_status/


SugarSync: https://www.sugarsync.com/servicestatus

Amazon Drive (NO LONGER AVAILABLE): https://developer.amazon.com/docs/amazon-drive/ad-status.html


Review our article on Cloud Backup which considers its strengths, its weaknesses, and how Cloud services should form part of your overall backup strategy.