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Objective:
One of the heels of Aquilles who to them usually
endilgar itself to the computer science systems, is apparent the little
security that offer, by the simple fact to store the information in media
that to our eyes are etéreo.
If we guided ourselves by our common sense it
seems logical, and it is more, the old files would be more reliable than a
rigid disk, but this is not more than a deceit.
The magnetic medias that the market offers are
highly reliable, and if we used them in intelligent form, we will see that
the results will be very positive.
The first point to consider is to use them,
whereas the second is to use them well. Despite it, it considers that great
part of this article will talk about the implementation of all necessary
means, not to have necessity to resort to the backups.
In ahead we will analyze and give the basic
lineamientos, to assure the information stored in the computer science
systems its company.
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Assuring
Electrical Supply:
Good part of the disadvantages appears as a result
of the interruption of the electrical provision. Damaged bases, processes
that means have left to do, made unusable impressions, lost of information
to means to load, etc.
Luckyly the technology helps to us in these
situations, clear it is that only if we make use of her at the suitable
moment, and that moment is before the disadvantage appears.
For it it will be enough with in line installing a
system of units of alternative provision. That they will be in charge to
provide electricity from the same moment at which the habitual provision is
interrupted.
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Choosing
Magnetic Media:
Since several options with respect to magnetic
media exist to use in the backups, it is important to by then know them in
depth if, to choose most suitable for our necessities.
Basically the parameters to consider are two, the
volume of information to endorse, and the time whereupon you count to make
them. Based on them you will be able to decide correctly.
Next we will enumerate different magnetic medias,
with its capacities of main storage, advantages and disadvantages.
Diskettes
They are the economic option, and for small
volumes they give an acceptable result. The main disadvantage is its little
reliability.
Zip
They store up to 100 Mb, and we could say that it
is the modern diskette, have a reasonable cost and the trustworthiness is
greater, as disadvantage we can indicate slowness.
Dat
Here we entered the great leagues, storing from 4
Gb, are fast and very reliable. Although its cost is higher than the
previous ones, if we consider its benefits, are balance.
Removible Hard Disk
It is an intermediate option, that is quick and to
an intermediate cost, has like disadvantage the incomodidad as large as the
removibles units.
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Making the Backup:
The recommendable minimum frequency to assure the
information, is of a daily backup.
Considering that when recovering a backup you
return to the situation in which she was at the time of doing it, is to say
that she will lose all the entered one from that moment to the present one,
is important to do them frequently. Of there in more, it is left to his
good criterion the frequency of backups chosen for his company.
In order to take ahead to the backup you will be
able to choose to make it in manual form, or by means of programs created
to the effect. Whereas the first option is but economic, second it will
assure to him that the backups become in time and forms.
As general lineament we can suggest to him that it
makes the backup in daily form, using different magnetic media for every
day of the week. It is to say that p/e Mondays always will use the same
disc game.
With it one will make sure that before the
possible fault of an average one during the restoration, you will count on
those of the previous days.
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Final Recommendation:
We hoped has noticed the importance of the
backups, for the securing of the information that stores and uses its
system.
If it does with the which had frequency, he will
be calmer and before a possible disadvantage, it counts on the solution in
its hands, and instead of which you sound, trompetas will do it by you.
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Last Update 10/05/2002 (ECR)
©2001 IASA Soluciones
Informáticas. All rights reserved.
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