Preferred media for backup

I am contemplating which media to use for backing up data daily:

1. Internal Hard Disk
2. External Hard Disk

Which of these two is more reliable? Do external disks have higher chances of failures?

I am looking around 100 GB of data to be backed up regularly.

Any thoughts or comments welcome
nainilAsked:
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ahdfxConnect With a Mentor Commented:
I would strongly suggest that if you use EXT drive for backups, that you get two drives and rotate them
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ahdfxConnect With a Mentor Commented:
Internal and External Hard Drives are basically the same.
The changes of an External HD power supply having issues is greater.

Here is what I would recommend.
http://www.ciunetworks.com/DisasterRecovery.asp
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driskolltConnect With a Mentor Commented:
There are only a handful of hard drive manufacturers.  They're all pretty much the same drive.

External is probably good for backups.  Mainly because if you need to restore to a different computer, you have a portable drive you can easily move to a different system as needed.
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