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2, 3TB HHDS or 3, 2TB

post #1 of 9
Thread Starter 
Hi all,

I'm trying to figure out what storage to use. I need at least 6tb to house my movie and music collection.

I jumped on a deal for Seagate Barracuda's 2, 3TBs for $210 so I've got them. I'm about to install them and check them out, with the conifedence that amazon will do RMA for anything not working.

Are these big HHDs worth it? I'm interested in silence, decent performance (esp no HD sleep state that requires it to wake up constantly) and of course high capacity.

I'm worried these baracudas are gonna be noisy.
post #2 of 9
You can get 3TB HDDs for $110-130..... those are the sweet point in HDD pricing ATM.

If you need to store 6TB... I assume you want some redundancy?

Using 3TB drives, you will need 3 of them for RAID5.
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post #3 of 9
Thread Starter 
Quote:
Originally Posted by DuckieHo View Post

You can get 3TB HDDs for $110-130..... those are the sweet point in HDD pricing ATM.

If you need to store 6TB... I assume you want some redundancy?

Using 3TB drives, you will need 3 of them for RAID5.

Thanks for the feedback.

I actually have 5 TB of data. However, I can get more and set up a RAID if you think it's wise. I'm a total noob in this area. How much would it cost me (that is, how much extra storage do I need) to set up a raid and what would that raid get me?
post #4 of 9
Quote:
Originally Posted by wermcran View Post

Thanks for the feedback.

I actually have 5 TB of data. However, I can get more and set up a RAID if you think it's wise. I'm a total noob in this area. How much would it cost me (that is, how much extra storage do I need) to set up a raid and what would that raid get me?

Your motherboard most likely already supports RAID5.

The common RAID types with redundancy:
RAID1 = n/2 space, 1 disk failure, good read/write performance
RAID5 = n-1 space, 1 disk failure, bad write performance, good read performance.
RAID10 = n/2 space, 1 (maybe 2) disk failure, good read/write performance


Here's a nice graphics of common RAID types: http://www.acnc.com/raid
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post #5 of 9
Thread Starter 
Yes i have up to 10 raid support.

So, I want good write and read performance. It looks liek raid10 is just an improved version of raid 1. So my space is halfed?
post #6 of 9
Quote:
Originally Posted by wermcran View Post

Yes i have up to 10 raid support.

So, I want good write and read performance. It looks liek raid10 is just an improved version of raid 1. So my space is halfed?

You don't need good write performance. It's media. You write it once... and read it many times.

RAID1 is a mirror of drives.
RAID10 is a stripe of mirrors of drives.
Both reduce usable space by half.

RAID5 utilizes distributed parity bits. It reduces usable space by 1 drive.

If you have 6 HDDs, RAID1 and RAID10 will give an effective 3 HDDs worth of space.
If you have 6 HDDs, RAID5 will give an effective 5 HDDs worth of space.
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post #7 of 9
Thread Starter 
Could you explain raid 5 to me? What are the advantages?
post #8 of 9
Quote:
Originally Posted by wermcran View Post

Could you explain raid 5 to me? What are the advantages?

http://www.acnc.com/raid

It creates a check value based on your data and spreads these over the other drives. In case of a single HDD, it can recalculate the data from the single missing drive.

The advantage that it just costs 1 disk worth of space. You need 3 disks to begin with...but if you have 8 2TB, RAID5 would yield 14TB of usable space. RAID1 would only give you 8TB usable while RAID10 would give only 4TB usable.
Once again...
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CPUMotherboardGraphicsRAM
i7 920 [4.28GHz, HT] Asus P6T + Broadcom NetXtreme II VisionTek HD5850 [900/1200] + Galaxy GT240 2x4GB G.Skill Ripjaw X [1632 MHz] 
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Intel X25-M 160GB + 3xRAID0 500GB 7200.12 Window 7 Pro 64 Acer H243H + Samsung 226BW XARMOR-U9BL  
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post #9 of 9
Newegg currently has a a sale of the WD My Book 3TB Desktop USB 3.0 External for $99. Bad thing is you loose your warranty if you open them, and they are green drives which suck for RAID.
Edited by rancor - 7/3/13 at 7:13pm
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