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Author Topic: Raid setup help  (Read 3318 times)

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nedkelly

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Raid setup help
« on: August 26, 2010, 04:25:38 AM »
I am looking to set 4 sata drives up in a RAID setup for backup purposes, I am however unsure what raid type to use.
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soybean



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Re: Raid setup help
« Reply #1 on: August 26, 2010, 08:50:27 AM »
I'm not a RAID expert by any means but RAID 0 is not what you should use since you mentioned "backup purposes".  RAID 0 uses "striping" only (no parity or mirroring), which is not what you want. You need one of the other types of RAID but, since I'm no RAID expert, I don't want to recommend a specific type. 

There are numerous references about RAID on the Internet.  Have you searched for them? 
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nedkelly

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Re: Raid setup help
« Reply #2 on: August 26, 2010, 01:20:03 PM »
Yes I have searched the internet but there are so many different opinions, can you have 4 drvies in RAID 0?
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Computer_Commando



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Re: Raid setup help
« Reply #3 on: August 26, 2010, 01:58:23 PM »
Quote from: nedkelly on August 26, 2010, 04:25:38 AM
I am looking to set 4 sata drives up in a RAID setup for backup purposes, I am however unsure what raid type to use...
RAID 1 - Mirror
Don't know why you need 4 drives for RAID backup.
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rthompson80819



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Re: Raid setup help
« Reply #4 on: August 26, 2010, 02:04:17 PM »
Check out this article.  It may help you make your mind.

http://en.wikipedia.org/wiki/RAID
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nedkelly

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Re: Raid setup help
« Reply #5 on: August 26, 2010, 02:15:36 PM »
@Computer_Commando: When first starting this I thought there was a RAID where you had data over all the drives and if one dies then you just stick in a new one it rebuilds and your data is still safe. Am I wrong?

Hmm does this sound like RAID 5?
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rthompson80819



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Re: Raid setup help
« Reply #6 on: August 26, 2010, 02:35:14 PM »
I guess one of the first questions should have been what are you trying to do and what is your budget?  For a home system, raid 5 is over kill, but for a commercial system it may be what you need.
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nedkelly

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Re: Raid setup help
« Reply #7 on: August 26, 2010, 02:43:10 PM »
I am just going to get the drives as I get the money, I want a raid system that if one drive dies then my important family documents and movies are still safe, and want heaps of space to stick all my stuff
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BC_Programmer


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Re: Raid setup help
« Reply #8 on: August 26, 2010, 02:46:20 PM »
Quote from: nedkelly on August 26, 2010, 02:43:10 PM
I am just going to get the drives as I get the money, I want a raid system that if one drive dies then my important family documents and movies are still safe, and want heaps of space to stick all my stuff

A RAID array, in any configuration, is a poor substitute for proper backups.
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nedkelly

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Re: Raid setup help
« Reply #9 on: August 26, 2010, 02:55:23 PM »
yeah but I have a lot of stuff
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patio

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Re: Raid setup help
« Reply #10 on: August 26, 2010, 03:46:45 PM »
Then you should have a lot of backups...

I have alot of stuff too...
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nedkelly

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Re: Raid setup help
« Reply #11 on: August 26, 2010, 03:56:23 PM »
patio = mod?
Well I already have the board the ram and the psu, just have to modify the case a bit.
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Computer_Commando



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Re: Raid setup help
« Reply #12 on: August 26, 2010, 04:22:32 PM »
Quote from: nedkelly on August 26, 2010, 02:15:36 PM
@Computer_Commando: When first starting this I thought there was a RAID where you had data over all the drives and if one dies then you just stick in a new one it rebuilds and your data is still safe. Am I wrong?

Hmm does this sound like RAID 5?
Not wrong, but maybe misguided.  I experimented with RAID 1 for a while.
RAID 1 with, for example, Drive A & Drive B.  Drive B is a mirror (exact duplicate) of Drive A, If you lose A, B is always there to take over; you then replace A as soon as you can.  Whatever is written to A is written to B, so writes are a bit slower, reads a bit faster, because it could read from A or B.  The RAID controller does everything, not Windows.  RAID is useful if you're running a server, or a computer that can never, ever be down.

Better to follow BC_P's & Patios's advice.
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