RAID 0 Query

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Kola Hall

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Jan 30, 2014
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Hi all,

My first post in this forum :) hope to get a quick solution to this problem (which might not be a problem at all). So here's the situation: I have a 128 GB Samsung Pro SSD (C: ), for OS and programs and a Seagate 2 TB for my data (D: ). The D drive is almost half full now and looks like the project I'm working on (editing a film) will take up the entire thing or might just go beyond the space that's left on the drive. So now, I want to backup the D drive data on a portable hdd and buy another Seagate 2 TB and RAID 0 them, without disturbing the peace on my C: (my samsung SSD). And once I've RAID 0 the two drives I'm going to copy the data back to the RAID drive with the hope that my C drive programs (premiere pro, AE) should be able to access the data on D just like how it used to be before. Is this doable? And am I correct about the workflow?

Thanks in advance,
Kola
 
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hang-the-9
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HEXiT

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Mar 13, 2011
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yes that will work fine. you may have to go into your apps and tell it where to look for your new data if you use a different path on the new drive. but if you put everything back in the folders where you found them on the fresh drives you shouldnt have to do anything...
 
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Xenturion

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Sep 1, 2011
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That should work just fine. When you've got the RAID array setup, just make sure that the file structure is identical to what it is now and makd sure the array has the D: drive letter in Windows. Everything should function like nothing has changed.
 
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das_stig

das_stig

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Jul 24, 2009
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Easiest way I find, if you raid controller doesn't support talking single disk and adding a second disk and raiding without touching data.

Using a Linux Live CD with disk imaging capabilities ..

1. Disk image to external disk.
2. Add 2nd disk and raid.
3. Reimage raid, telling it to expand to fill unused data blocks.
4. Boot Windows and do a disk check to verify data integrity.
 
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hang-the-9

hang-the-9

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Mar 25, 2010
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Why RAID 0? Although that will get you basically a 4tb drive from those two 2tb drives, you are doubling your chances of data loss. If you use RAID 0, make sure you have another drive to back the files onto. If you have to expand the space for your project and just 2TB is not enough, consider doing a RAID5 setup. A lot safer although it will need at least 3 disks to setup.
 
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HEXiT

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Mar 13, 2011
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or you can just use a soft raid setup run in windows. will work just as well as a hardware based raid run by the motherboard.
the advantage of a soft raid is that your motherboard doesnt need to support raid at all.
 
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K

Kola Hall

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Jan 30, 2014
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Hey you guys! Those replies were really quick and I much appreciate your suggestions. Hexit and Xenturion, thanks for the confirmation on what already was there on my mind. so all I need to do is while RAIDing the drives under name I put it as 'D' and then on the windows screen it will show as 'Local Disk (D :)'? or 'Raid Volume/drive/disk (D :)'? Either way, as long as the drive name is 'D', and all the data is pasted back on the the RAIDed 'D' drive the same way it was laid there before my programs on the C drive should be able to find their way back to them right?

@das_stig: Thanks a lot for your input, however, I'm not very proficient with this technology and the finer details; didn't quite understand what you said there :/

@hang-the-9: Appreciate your suggestion, sir, and honestly I've thought about this a lot myself and figured with my budget situation having one drive ($90 approx) dedicated only for data security (RAID 5) is a bit lavish, considering the drive failure rate for well known brands isn't very high at all (1-2%) max. At the same time, there is a good possibility I could be that 1 or 1 out of 2 persons, hence, like you suggested I'd be on every alternate day backing my data up.

@Hexit: Soft RAID? How effective is it performance wise compared to a hard RAID? since I'm into video editing I'd want to achieve 300 mb/sec plus.
 
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hang-the-9

hang-the-9

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Mar 25, 2010
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Drive failure rates is a lot higher than 2%, unless you mean the % of brand new drives that may be bad out of the box. http://blog.backblaze.com/2013/11/12/how-long-do-disk-drives-last/

This is from that page:

For the first 1.5 years, drives fail at 5.1% per year.
For the next 1.5 years, drives fail LESS, at about 1.4% per year.
After 3 years though, failures rates skyrocket to 11.8% per year.

I had a situation at work where BOTH drives in a RAID 0 disk array failed at once. Cost the company close to $1,000 to get the data restored. Funny part is they bought a 1TB external box with RAID thinking it was RAID 1 so it would be two 1TB drives backed up to each other. Turns out it was two 500GB drives in RAID 0 LOL. Some people don't read product details before hitting the "buy" button.
 
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