We acknowledge that it is impossible to make an exact comparison with an alternative commercial product when the ADSM database layout and mechanisms are unknown, but it is our understanding that it is not out of the question to obtain 500 transactions per second. On weekdays we now doing incremental database Backup and performing full ones at the weekend. Filespace deletion is another activity that focuses on raw DB performance and one whose performance we have observed to vary significantly over the last 10 months. This is a another example of an on-demand task that is sometimes difficult to accommodate in our working week. Not all clients make use of their assigned regular backup slot but many do.
Any system can potentially do additional Backup daily on demand.
In general, client performance during backup is typically disappointing and the smaller the average filesize, the poorer the overall transfer rate. In this unstructured environment it is difficult to know how well or poorly individual systems are configured. The figures we see indicate that targeting systems that we can identify as making high demands and exhibiting poor performance could lead to some overall benefits. Space management is used only by the HFS system itself presently although there is a potential demand to run this on departmental servers. The larger the number of files being space managed, the greater the time taken to do the reconciliation.