Lost user password or encrypting key

Lost of User Password:
In the case where your user password is lost, you can retrieve it by requesting the “forgotten password” email from our secure web portal. The password provided in the email will actually be a hashed version of the user password, the actual password is never stored on the GBDataOBS server for security reason.

The hashed password provided in the email can then be used to login to the GBDataOBM / GBDataACB client software, however, the hashed password cannot be used to decrypt data. Even if the encrypting key configured to be the same as the user password.

In the case where the backup set encryption setting is set to default (to use password as the encrypting key), you will need the actual password to decrypt any data backed up. This includes data previously backed up and also data that is backed up in the future for existing backup sets.

Loss of Encrypting Key:
In the case where your encrypting key is lost, there will be no way to restore data from the corresponding backup set. You must create a new backup set and then backup the data again in order have a restorable copy of the data. Since the encrypting key is never sent to the GBDataOBS server, thus, the encrypting key is not retrievable if lost.

If the encrypting key is lost, then the following steps must be performed to ensure that data backed up in the future can be restore and decrypt:

  1. Delete all backup sets where the encryption key is lost
  2. Create new backup sets for the affected data
  3. Backup the data immediately

We would like to stress that it is very important to keep a record of your user password and encrypting key.

What are Off-line backup, Logout backup reminder and Local backup features

  • Off-line Backup is basically designed for notebook users who are off-line most of the time, and cannot rely on backup schedule to backup regularly. The backup interval allows notebook users to specify the interval that they would like their data to backup. If this interval has elapsed, backup will run automatically once this machine is online.
  • Logout Backup Reminder asks user if they would like to backup if they logout of the computer or shutdown their computer.
  • Local Backup allows an extra copy of backup file to be kept on local hard disk when backup is running.

What is incremental backup and how does In-file Delta work?

In an incremental backup, only modified files will be uploaded to the GBData Backup Server.

On the other hand, In-file Delta is applicable to the physical files to be uploaded to the Backup Server, does not matter whether it is a MS SQL database file, MS Exchange transaction log file or any normal file in a File BackupSet.  Specifically, only the changed blocks in comparison to the original file on the Backup Server (delta file) will be uploaded.

For each modified file, GBData online backup software would determine whether the entire file or only delta file should be uploaded. If the entire file is to be uploaded, the old version of the file will be moved to the Retention area.

Else if only the delta file is to be uploaded, the previous delta files will be moved to the Retention area and the Data area should contain the original full backup file, checksum file and the latest delta file of this file.

What is the average compression ratio?

All backup files are compressed and encrypted before uploading to the Backup Server, the average compression ratio for text-based file is around 4:1.

However, no further compression can be made on files that are already in compressed format (e.g. JPG, ZIP). In general, you can assume a 2:1 compression ratio when you are backing up a file set with variety types.

Does GBData online backup software copy the same set of files regularly?

After the initial upload, subsequent backup jobs will only transfer the modified or new data to the Backup server.

How does GBData online backup software detect the changes in files

GBData software compares timestamps of files on the server with the corresponding copies on client machine. Archive bit is not used as it does not detect relocated files. Therefore tape backup would not affect GBData’s backup application.