Solved

Mirror Single Drive to (R)AID-0/3

Hello fellow gurus! I'm trying to figure out the best hard drive config possible for HD video editing.
I want to break a 2 disk RAID-0 and make it a 3 disk RAID-0 (mixmatched drives/size), and either use hardware RAID or software to sync the array to a SINGLE DISK of the same size.
Not concerned if I loose all data on the RAID-0, since everything is backed up in multiple locations.

I'm using the onboard Intel RAID/RST + AHCI since this is a workstation/server class motherboard. I do not have a free PCI slot available for a RAID card.

I do not want to lose data on the 3TB (80% full) single disk since I'd have to have the media mailed to me again.

?????What is the best way to go about this????????

>Configuration:
MoBo: Asus P7P55 Supercomputer, i7-870 @ 4.2GHz-1.6GHZ EPU-6 (stable);
GTX-660TI, 16GB DDR3-1600-7-7-7-9
Bios is current, using AHCI/INTEL RAID/RST

>>HARD DRIVES<<<
3TB 7200 Barracuda: Primary Storage Drive (OFF-SITE BACKUP, TIME-SENSITIVE DATA)

RAID-0 CANDIDATES:
>>2TB RAID-0 (2x 1TB WD7200rpm): (ON-SITE BACKUP)
>>1.5TB 7200 Barracuda: Render Files (DATA NOT IMPORTANT)

>HD Tune Raid 0 (2 drive):
Min: 75.2MB/s, Max: 174.0MB/s ADV: 136.7MB/sec, Access: 11.8ms
Bust Rate: 3130.g MB/s, CPU +/- 1%.

This is meant to be a cheap-quick fix to duplicate the 3TB drive onto a faster array while I save up for a proper NAS.
5 answers Last reply Best Answer
More about mirror single drive aid
  1. OK so I re-read the above and realized my original question is a bit confusing.
    What I want to know is:
    1: Can I raid 1+0 the to make the raid-0 mirror a single disk without losing data?
    2: Would the 3 disk RAID-0 encounter any performance problems?
    3. If hardware mirroring won't work, any programs recommended so that I only have to make changes to the single disk to have them reflected onto the array?
    4. Any other options that come to mind?
  2. Benevolence said:
    OK so I re-read the above and realized my original question is a bit confusing.
    What I want to know is:
    1: Can I raid 1+0 the to make the raid-0 mirror a single disk without losing data?
    2: Would the 3 disk RAID-0 encounter any performance problems?
    3. If hardware mirroring won't work, any programs recommended so that I only have to make changes to the single disk to have them reflected onto the array?
    4. Any other options that come to mind?


    No, you need 4 drive minimum for RAID 1+0

    The configuration would look like (A=A B=B).
  3. Did you read the post? I have four physical drives, one with the data on it. I want to rearrange my current raid settings to create a speedy mirror of the data stored on the 3TB. Currently looking at making a 3 disk raid0 and using easus workstation to syncronize it to my media backup drive. Any better ideas? I thought I'd get some opinions on this to shake the bad feeling I have about doing a massive reconstruction of my current raid.
  4. Best answer
    Benevolence said:
    Did you read the post? I have four physical drives, one with the data on it. I want to rearrange my current raid settings to create a speedy mirror of the data stored on the 3TB. Currently looking at making a 3 disk raid0 and using easus workstation to syncronize it to my media backup drive. Any better ideas? I thought I'd get some opinions on this to shake the bad feeling I have about doing a massive reconstruction of my current raid.


    I'm sorry, but the original description was really convoluted.

    let me try again.

    Having a RAID0 configuration consisting of 2X1Tb drives and 1X1.5TB drive(resulting in a total volume of 3TB) to be used as a backup for the existing 3TB independent drive, correct?

    You're asking if you can use hardware RAID to the mirror the independent 3TB drive's data to the 3 drive - 3TB RAID0 volume, correct?
    You're also asking about the performance implications of that, correct?

    If I got all that right...
    The answer is technically yes it is possible, to do and the performance would be limited to the speed of the independant 3TB and likely slower than the existing 2 Drive RAID0 configuration you have.

    You would also be left vulnerable and without a proper backup(RAID is NOT backup).

    With a 3 drive RAID0 configuration acting as a proper backup(with software sync) for the 3TB drive, You'll accomplish somewhat faster performance on the RAID0 and have a proper(though not ideal) backup.

    TLDR; what you're currently planning on doing is the best short term plan with the drives you have.
  5. Thanks for the input, sorry for the lack of clarity.
    The info on the performance and backup differences between using mirroring and a backup program, that's exactly the piece of info I was looking for.
    I used the Intel RST console in Win7 to add the third disk to the already existing array. It's still migrating data onto the third drive, but it says I can still use the array during this process (albeit with a minor temporary performance hit). Will run a verify check, defrag magic/optimize and post benchmarks up here in a day or so.
Ask a new question

Read More

Hard Drives Storage NAS / RAID Configuration Video Editing HD