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I'm kind confuse about it, can some one give me a hand with this...

  1. Differences.
  2. Which one is better.
  3. Which one do you use and why?
  4. Personal Opinion and advise.
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closed as not a real question by Leigh Riffel, Nick Chammas, Derek Downey, Marian, JNK Sep 18 '12 at 20:09

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

Database replication, or storage-level replication? – Jon Seigel May 11 '12 at 0:24
They aren't even remotely related concepts. – Aaron Brown May 11 '12 at 0:33
Disk Storage Replication, which he probably meant by "Replication" (hence, the comparison to RAID), is quite similar to RAID 1 or Mirroring. Replication can be implemented across different networks. – MarlonRibunal May 11 '12 at 8:38
up vote 3 down vote accepted

RAID is a storage level function. You can use the various types of RAID apart from any RDBMS. RAID controllers are integrated with consumer-level products these days, so it's common even for home PCs to use it.

Replication in RDBMS terms is a mechanism for taking data from one place, and putting it somewhere else. Some flavors of replication allow for merging data that originates in more than one place.

You can go into quite a bit of depth on either subject, but they are very different things.

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He probably meant Disk Storage Replication; hence the reference to RAID. Disk Storage Replication is quite similar to RAID 1 Mirroring, except that Disk Storage Replication can be implemented across the network. – MarlonRibunal May 11 '12 at 8:29

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