RAID Technology Part 2: RAID Levels

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SySAdmin

ASE Bot Joined: January 10, 1995 Status: Offline Posts: 120 Rep:

RAID Technology Part 2: RAID Levels

Sun Nov 19, 2006 8:03:11 PM #28433 Perm Link

There is a new article posted at »ASE Labs

»RAID Technology Part 2: RAID Levels

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Now that you know the technology behind the term, learn about the levels that make up the RAID standard in part 2 of our continuing guide on RAID.

Please add your comments below.

Edited at Mon Nov 20, 2006 3:23:57 PM

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dexaroni

Stand for something, or fall for nothing. Joined: November 11, 2006 Status: Offline Posts: 684 Rep:

Re: RAID Technology Part 2: RAID Levels

Fri Dec 1, 2006 1:06:40 AM #29403 Perm Link

In response to SySAdmin #28433

I just wanted to let you know that I DID read this, and plan to use the information I learned from it when I get my second 80gb ide hd.

I need to move out of 2002.

Its not who a person is in the inside, but what he does that defines him.

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daemon

Giggity Giggity Gee Joined: November 11, 2006 Status: Offline Posts: 465 Rep:

(No Title)

Fri Dec 1, 2006 2:15:46 PM #29428 Perm Link

Raid 0+1 gives you the best of both worlds, data redundancy and performance but unforunately I think you need atleast four HDs for Raid 0+1.

Edited at Fri Dec 1, 2006 10:22:44 PM

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matrixhax0r Joined: November 12, 2006 Status: Offline Posts: 9 Rep:

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Sat Feb 10, 2007 8:56:34 AM #33875 Perm Link

I think Raid 0+1 is extremely wasteful. Plus, the extra layer probably introduces all sorts of latencies, canceling effects somewhat.

Fun fact: Identical hard drives don't necessarily take the exact same time to complete the same tasks. Hard drives use moving parts and as a result, things don't happen exactly the same between drives (or if a drive needs to do an ECC for a sector).

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