Backup and recovery mechanism

Similarities between the mainframe and the LAN back up, recovery and archive there. Environmental problems are the same for both solutions, but a change of tire to tire.

Tape-based backup

It includes more options for backup and recovery is a number of reasons. The most obvious is cost. To store a megabyte of data costs a tenth of the tape on a hard drive, 20 percent of the dollar. Another is reliability. Less likely to read data from the hard disk from the tape. Finally, tape backup systems more advanced than a simple bar is depressed. Most products have a menu-driven interface, support for unattended backup and provides options to whether the entire hard drive, select a file or files to be backed up.

It is a universal file format for data exchange across platforms and storage devices, allowing the tape to read on any drive, just drive on which I was created. The support of a quarter-inch tape, cassette data, 4mm and 8mm helical scan is a digital audio tape.

Host-based backups

Another option is to send data over the LAN network to a host, the host system's memory management is more than products. This feature requires sufficient bandwidth to support the transport of data. It centralizes LAN with mainframe data management and other systems needed for backup and recovery techniques to remove the Archive of the end users.

Organisations need to backup devices that can support a heterogeneous network, and backup devices to support specific network and workstation operating systems. Vendors have been slow to upgrade products in the backup system for Multiple Platforms: Windows and the ability to provide a central location is connected to the LAN. Dynamic Server database to a backup data can be backed up while the server is being used to support. This feature minimizes disruption to the community and makes it suitable for performing backups. Then the backup application, application server transaction logs for the Czech, who recently committed to any transaction and writes them to the database. The proceeds of this software is a backup at this point. Server software keeps a record of which parts of the database have been backed up. When changes to the database, application server, you can see the Czech affected areas have been backed up. If this is the support, the reform can proceed. When the region backed up, the transaction can be executed.