Am 03.04.2007 um 11:10 schrieb Carlos E. R.:
You can get 1TB drives?
Ok - give it 3 month ... :
rumored not to be as reliable as "normal" sizes, yet.
This may be. The Hitachi drives are not released yet. But to speak
for these 750GB Segate drives, which are the same technology: I have
some of these in use
and they seem to be not less reliable as other drives - no broken
disk yet.
Knock on wood.
In theory a HD electronics can break down. In the same
circumstances with
removable media, the media itself can survive, you just replace the
drive
and recover the data. There are more things that can break down in a
drive. In practice... :-?
If it is the only backup left and you really want to recover data
from it you can replace the drive electronics too. But yes - a tape
media _is_ more robust then a hard disk. There is much less fragile
mechanics in it, there is no electronics in it ...
But there are other drawbacks with tapes: most small companies don't
have a
second tape drive in house. If their server dies and takes the tape
drive with
it you have to get such a drive to recover - depending on situation,
this may
take days.
The point is - you need to check your use cases and possible
alternatives and
their risks. And for our usage (and for the use cases of most of the
small
companies I know about) a tape drive is much less interesting then
something
like a set of USB disks/a remote archive server/a nice little home
NAS ...
When you are admin and you choose a tape drive you are save - even if
it fails
you did _the_right_thing(tm)_. But if the question is not to do
_the_right_thing(tm)_ but to simply keep all the stuff up and
running, you
may want to have a look at the alternatives - you may save money,
gain uptime
and make your and the life of your users easier.
Just my two cents
Ralf
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