Showing posts with label Choosing. Show all posts
Showing posts with label Choosing. Show all posts

Wednesday, November 10, 2010

Choosing backup media

Backup requirements of different people depending on the amount of data, give data, time to take backups and the "resources". Search for one (or more) different plans can one find the ideal backup help.

If the amount of data to be backed up is large, certain options would not viable.CD media can, for example, less than 1 GB of data is stored. having to sit near a computer Exchange countless hard drives ensures that the first backup will be probably the last.

According to data, you can sometimes reduce its size by more than 50% by compressing it.  Not all data compressed using the same rate. Native compressed music, video and certain images and are therefore not reduce in size much further.On an average mix of files, you should expect located around 33% Reduktion.Sie might a few media disk and time necessary to write you save, by compressing files.  The disadvantage of compression which is the media disks fails, data content, on the other disks instead of may not.

CD-R and CD RW.Diese store less than a GB data.DVD-R and DVD-RW. Can save to 4.7 GB data.DVD-R and DVD-RW (DL) it. The media can save 8.7GB.Blu-Ray BD-R and BD-RE media can store 25 GB of data.

The media are described either once or rewritable.The advantage of using CD and DVD - and in the future of Blu-ray media is that the backups are readable on drives from other manufacturers and other systems.  Write once media is in the medium term to archive data, cheaper than the rewritable, unless of course you need, backups on rewritable disk prove once much cheaper than their write his Entsprechungen.Wenn must archive data, research Longivity of media you want to your archive data to write.

Today, that is, 64 GB and more USB find can drives for what one can look at reasonable price.As most of the above media makes it easy to read the universal adoption of the standard USB, another advantage of flash storage on optical media is data on a computer other erstellt.Ein, that a thousand times faster than optical flash memory.

Allows to backup this solution to run terabytes. Slower than flash memory faster than optical and bulky as both, removable hard drives store data on a magnetic stratum residence on a movable platter.Although manufacturers cited that the average life of a drive of 100 years tilts, are today, many studies indicate that default rates as reported by drive companies several times are higher and the figures should be shouldn't be trusted.Another problem with distance hard drives is that this corruption of data on a magnetic much more than the media mentioned earlier are vulnerable.

Large companies/authorities are usually the primary clients of these solutions.This is because solutions based on tape - improved further, by using hardware such as such as tape loader - enable organizations to backup data that runs into the hundreds of terabytes without human intervention.Band is no longer a viable and cost-effective storage solution for SMEs (small and medium-sized enterprises) as well as home users.This is because it no longer the cheapest solution; it can be decency; find a tape drive on the computer at the next desk; a sequential device it's slow retrieve selected files and band is quite short compared to the other media life.

This secure form is unique replicated the data to a physically different machine be. While this could be the computer 1 M on the right side, it isn't a computer invisibly be ist.Daher if your Office burns or is destroyed, after a storm causes chaos you usually the least search for what a USB stick war.Remote backups are originally by the charred remains to work because the solution technically designed so that you don't think to take a backup.

What solution do opt for backup your data before determining how much your data is worth.


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Sunday, April 18, 2010

Choosing a strategy of data archiving: disk archive from tape archive


Archiving data is an essential process for many environments storage data for several reasons. Firstly, the archive data, either long-term or short-term, allows a company back through archived files to retrieve a specific piece of data for clients or their own. Secondly, data archives often remain for a number of years to government regulations. In this spirit, companies typically three data, they can choose from archiving strategies: archive disk, tape archive or both. What are the advantages and disadvantages of each method? Which is best for your business? Alternatively, it is better to use a mixture of disk and tape for your data archives?

There are several advantages and disadvantages of archiving and archiving of the tape drive, it does many organizations often choose a combination of disk and tape, from disk for short-term archives and then transferring data archived to tape for long-term conservation.



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