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RAID 0 or RAID5? - Page 2

post #11 of 21
Thread Starter 
Hmm, RAID5 is looking better and better.

Is there a difference in performance between the two? I don't know a lot about RAID5 (other than the wikipedia article), so I'd guess RAID0.

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post #12 of 21
RAID 5 is really demanding on the CPU. You will lose some important CPU processing power if you go with the on-board RAID controller. A dedicated RAID 5 controller will have it's own CPU, but they dont come cheap. The pest price/performance option is to set up a RAID 0 with a pair of 640AAKS drives, then have a 3rd HDD to backup all your important files onto.
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post #13 of 21
Thread Starter 
Yea, I just read about the demand it has on the CPU in CD's thread. I can't afford a RAID card atm (probably never), so I'll see what happens. Worst case, if I chose RAID5, I can always just reformat and rebuild it as RAID0.

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post #14 of 21
Quote:
Originally Posted by justinjja View Post
raid 5= 1.9TB
raid 0= 2.5TB

If a drive fails
raid 5 = you buy a new hd and it will repair it self
raid 0 = all data gone.
This is correct.

Just FYI (which you may already know): In regards to 4 identical 640GB HDD's, RAID 1 would be 1.28TB of usable data storage. It provides even more data security in the event of failures over RAID 5 (and of course RAID 0), but obviously with less usable space.

IMO:
With 4 640GB Drives, I'd go with RAID 5 - as it gives some data protection (whereas RAID 0 doesn't), yet more usable space than RAID1. Unless your data is VERY important and you have no other sources for backup.
Edited by Choggs396 - 7/7/08 at 6:23pm
    
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post #15 of 21
Go RAID0 unless you plan on buying a RAID card. With 4 HDD's, you WILL be impressed.

Once again, redundancy is for the weak!
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post #16 of 21
Thread Starter 
Yea, I haven't really given RAID1 a thought. I see no need for that type of an array with the contents they'll hold. I mean, I like pr0n, but not that much...

Seriously, RAID1 is a good option, but not in my case. Like I mentioned before, I need very little security, but a lot of space and speed.

Thanks man!

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post #17 of 21
You may find this interesting it compares the speed of different raid arrays.

http://www.xbitlabs.com/articles/sto...aid0510_6.html
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post #18 of 21
Quote:
Originally Posted by CapDubOh View Post
Go RAID0 unless you plan on buying a RAID card. With 4 HDD's, you WILL be impressed.

Once again, redundancy is for the weak!
Does loss of data happens very often? And why does it happen? I am somehow afraid of losing my data.
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post #19 of 21
RAID5 is always (#drives - 1) * drive size
RAID0 is always #drives * drive size
RAID10 is #drives*drive size/2 (RAID10 is 2+ RAID1s in RAID0)

Since you'll be storing your DVD collection, I can't really recommend RAID 10 just because it cuts your space down in half. Like others have said, without a dedicated card, RAID 5 performance won't be great. I'd just watch SMART and hope your drives don't die unexpectedly .

Emx, data loss usually happens as a result of mechanical failures in the drive. If you're worried about losing your data, back it up to DVDs or another drive.
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post #20 of 21
Quote:
Originally Posted by heretic View Post
Emx, data loss usually happens as a result of mechanical failures in the drive. If you're worried about losing your data, back it up to DVDs or another drive.
Ah, ok. Mechanical failures don't happen quite a lot
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