Scheduled and unattended backups do not require a user logged in, which leads to better security. However, if there is a problem, the server needs to be downed in order to fix the fault. Operating the backup system in the server will also affect the servers performance. In general, the backup system will require an additional 2Mbytes of memory in the server to run efficiently. On a heavily loaded server, running the backup system could grind the network to a halt.
Workstation Based The backup system is installed in a workstation.
When the user logs in, a drive is mapped to the backup software which is installed on the server. Often, the system manager will install the backup software on the local workstation hard disk. This eliminates the necessity to reload the backup software onto the server in the event of a server catastrophic failure, and saves time during the restore process. This method will be slower than the server based option because the files are sent from the server across the network to workstation. A problem with the backup unit does not require the server to be downed.