Backing up data

Systems for backing up data are required. There are a variety of media that will meet the requirement. The decision should be based on logistics, resources, and systems already in place. Some appropriate back-up media are floppy disks, zip drives, additional hard drives, network server and CD-ROMs. Data must be backed up at least once per day on the day that original raw data are entered into the program. Ideally, backed-up data should be stored in a fire-resistant, secure area or a secure location separate from where the primary data are stored. 

If required by the model(s) to be used, back-up data for each entry in the matrix or table may be supplied to resolve the total mass flow into spatial cells (UTM coordinates, depth or height), temporal cells (hourly frequency distributions, diurnal cycles, seasonal subdivisions or secular trends on annual intervals) or speciation cells (by valency state of anions or by hydrocarbon structure, for example). The level of difficulty encountered by the user in supplying these data may influence the choice of model(s). 

Data must be protected by backing up at regular intervals. Back-up data must be stored for as long as is necessary to comply with regulatory and company requirements at a separate and secure location. 

Backed up data stays in the iive system Archived data deieted from iive svstem... 

Hydro-Med Sciences, February 1999 — There are no procedures for backing-up data files and no levels of security access established. ... 

The Restore wizard helps you restore your previous backed-up data in the event of a hardware failure, accidental erasure, or other data loss or damage. 

Full temperature range calibration Enthalpy calibration Baseline calibration Check flow meters and gas bottles Back-up data and methods Monthly... 

A back-up system should be available to respond to system breakdowns or failures that result in permanent loss of critical records. Back-ups may consist of hard copies or other forms (e.g., tapes or microfilm) that ensure back-up data are exact, complete, and secure from alteration, inadvertent erasure, or loss. 

The back-up data for my statements of these characteristics is explained in outline form in Table VI-XV, Figure 1, and Table XVI. 

Backing up data and application files on a network is essential to overall network security and the ability to recover from the inevitable data-destroying disaster. Although the process and overall components are relatively simple, the implementation can be anything but simple. Basically there are only two components to a network backup system (1) the software, which manages the backup, and (2) the hardware device, which captures the backed-up files. 

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