In terms of SFTP, disaster recovery is one of the most important qualities to focus on before you make the decision to go with any one particular provider. An unfortunately large number of things could potentially cause data loss before you know it - from failing hardware to user error to accidental deletion and more. SFTP disaster recovery objectives aren't designed to prevent these circumstances from happening, but instead are intended to make sure that you can resume your normal business operations without skipping a beat in the event that they do.
Your SFTP Provider Should Have These Two Disaster Recovery Objectives
Encrypted Backups to a Separate Location
Even though SFTP makes your data available anywhere, the physical location where that data is stored is still very important. Providers like FTP Worldwide, Exavault and SmartFile may allow you to encrypt your backups, but that information is still being stored in the same geographical location where your primary data is housed. If an Exavault server farm falls victim to a fire that causes a total loss, your primary data and your backup copies will be gone because of the exact same event. Another provider named BrickFTP says they have backup, but what they really have is a recycle bin for deleted files; your active (undeleted) data is not backed up.
Sharetru, on the other hand, stores your encrypted backups in a completely separate location. If the primary Sharetru facility suffers from a complete data center failure (i.e. a major citywide disaster), Sharetru is capable of rebuilding its entire production-level network in a new location within 24 hours. And, since daily backups of all your data are stored in another part of the country, the point-in-time restore will include no data loss. Sharetru has even made plans to migrate all their FTP site IP addresses to a data center in another location, so it is even very unlikely that your FTP site dedicated IP address will change.
High Availability SFTP
Also commonly referred to as HA SFTP, high availability SFTP is designed to offer you maximum performance for all of your mission-critical data - even in the event of some type of catastrophic system failure. Different strategies can be employed to make this type of configuration possible, but the end result is the same: you never lose access to your data, period, regardless of what is going on.
FTP Worldwide, Exavault and SmartFile don't consider high availability SFTP to be a part of their traditional SFTP disaster recovery objectives. FTP Today does. With FTP Today's HA infrastructure, if the primary server that you're using for your SFTP site goes down, you are automatically redirected to a secondary server. And, even if FTP Today's primary facility suffers a catastrophic disaster (which is admittedly unlikely but not beyond the realm of possibility), you can still get up and running again as quickly as possible.
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