Microsoft Word Hardware Reconfiguration Methodology V final2

Restoration considerations

1. Plan development

A successful restoration plan should be based largely on the backup plan (developed in Section 3.2.1) that should already have examined the different facets involved in backing up computer systems. These facets include organizational and operational policy and requirements, as well as the operating system capabilities and requirements. How a restoration unfolds is largely

dependent on how the backup itself is done; this can include backup devices, the use of centralized backup servers, the type of media and filesystems, skipped files, network paths, etc. Restorations are important to recover from data loss, corruption, or operating system error; however, a system that improperly backed up may cause restoration failure and the files may be permanently lost. Consider that if a particular backup is difficult to perform due to various reasons then it is more likely that the restoration will also be difficult to perform; conversely, a backup done with ease should be also be easily restored. A restoration, as with any backup, can go awry for different reasons, the majority of which can be mitigated or altogether removed if adequately planned. The previous sections, including the following one will help for planning a successful restoration.

2. Tools

The tools used for data restoration are the same ones used for performing data backups. Tar is fully capable of creating and archiving data into a Tar-based archive; it can also extract data from the archive. It is the same for Cpio-based archives. Dump-based archives are restored using the Restore tool; it is a command-line and interactive tool used for extracting files from a Dump archive. Finally, DD-based images can be restored using DD by either bit-copying the data back to a raw partition or device, or using the mount command its contents can be made accessible as with any other filesystem. All of these tools are able to read and write from disk and tape-based media.

3.