The main summary contains a basic summary of current backup status – the numbers of backup sets that have run within the last 24 hours, 3 days, and older; and backup sets that have never successfully backed up.

If you have enhanced agent reporting, then the number of backup sets with deferred data is also shown.

 

STORAGE USAGE AND STORAGE SUMMARY

The storage usage graph shows your total storage usage plus the top 10 locations over the last 60 days.

The storage amounts on the graph are the size of the stored data, after compression and delta processing. The same set of figures are used for producing the billing figures each month.

The storage usage figure typically has a weekly ripple that is caused by data no longer pertinent to the backup set being held in storage until it can be optimised out of the stored data (this typically happens on a weekly basis over the weekend). Peaks can also be caused by a backup having to re-seed, which can result in 2 copies of the same data being held for a while until the older seed copy of a backup ages off.

The storage figures are measured several times per day, and the lowest sample for the day is taken as the day’s storage figure. This means that when backups are adding data to the system, the storage figure tends to lag behind the backup figures by one day – whereas if storage is being reduced the lower figure is seen immediately.

The Storage Summary table lists each location with the Restorable data size and stored data size for that location in each class.

The Restorable data corresponds to the original size of the backup data and the number of generations kept, so a 1MB file kept for 7 generations would correspond to 7MB restorable data.

The Stored size is the size of the backup set on the Vault disks, excluding any storage overhead. This figure is compressed and delta processed (so multiple generations of the same file use very little additional storage).

 

PER LOCATION REPORT SECTION

This section appears once for each location covered by the report. It contains one table with information on each active backup set followed by a storage graph for that location (the per-location graph is not generated if there is only one location covered by the report since it would be essentially identical to the graph in the main Storage Usage section).

The columns in the per location report table are as follows:-

• Computer – the name of the computer for this backup. Where multiple backups are performed for a single computer, then the computer name is hidden for all lines after the first. The table is sorted first by the computer name than by the task name.
• Task – the task or backup set name.
• Type – the backup type as seen by the backup system – for example File, Sql or Exch.
• Last Successful Backup – the next 4 columns all correspond to the last successful backup. There may have been subsequent failing backups since this one (they will be indicated in the Recent Issues column). Due to the delay through the reporting system backups that completed within 2 hours of the report generation may not be included.
• Start Time – the start time of the last successful backup, or the word Never if no backup has been successfully completed for this backup task. This item is colour highlighted if the last successful backup is more than 24 hours old (yellow), or more than 3 days old (red) or has never completed (red).
• Duration – the duration of the last successful backup in hours and minutes. This field is highlighted yellow if the duration of the last backup was more than 9 hours, or red if the duration was more than 24 hours
• Original – the size of the files (or data) backed up in the last backup. This is not the restorable size of that backup set, but instead the total size of any files that are new or have changed since the last backup.
• Transfer – the data transferred during the last backup – after delta blocking and compression operations. Effectively this is the network load of the last backup.
• Recent Issues – this column flags up any recent issues with the backup and may contain one of the following issues
• Fail – there have been failed backups since the last successful one – either reported by the agent or the vault. This message will have a red background.
• Defer – the last backup deferred of data when the backup window ran out. This will be in yellow.
• Errors – the last backup had this many agent errors. This will be in yellow.
• Warns – the last backup had this many agent warnings and no errors. This will be in yellow.
• Current Size – the next 2 columns show the backup size.
• Restorable – the total size of restorable data held. This is the total size of data that would be restored if you separately restored each stored generation of the backup set.
• Stored – the size on disk of your saved backup (all generations) after compression and delta processing. This is the billable data figure.