Adding 2 disks to a Raid 0 to make it a Raid 0+1

Posted on 2004-11-11
Medium Priority
Last Modified: 2010-04-03
Currently I have a system set up (with GigaRAID) as a Raid 0 (striping).  I want to add two more drives to make it a RAID 0+1...but I don't want to lose my data on the original two drives.  I just want to plug in the two new ones and tell it to add those in and mirror to them.  I've looked in the RAID BIOS configuration and I've launched the Windows software tool.  Both of them seem unclear as to whether or not I'll lose my data.

Any ideas?

I'm in a hurry, so I'm assigning a high point value!
Question by:tycen

Author Comment

ID: 12560685
More info...

To clarify, it seems that in the Windows tool I need to delete my current array (0) and then with all four disks available, set up an array 0+1.  But, if I delete the array, will I delete data or will it just delete the array layout?
LVL 13

Accepted Solution

masterbaker earned 1000 total points
ID: 12561002
You will lose your data if you follow their process.  What you need to do is use a program like Symantec Ghost to take a snapshot of your system before doing this.  You might want to get a tape backup as well (if available).  Then set up the array as you want and restore the data using Ghost.  I just don't believe you can turn your RAID0 into a RAID0+1...


Author Comment

ID: 12561636
Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

LVL 88

Assisted Solution

rindi earned 1000 total points
ID: 12561938
Have a look at acronis trueimage. I've used that on raided drives and it worked (maybe I was just lucky, because I was also able to make an image of a raid system with ghost). I did have to try a couple of times, though. migrating a raid 0 system to raid 10 might work but also there you'd need to be lucky, so a backup is essential.
LVL 13

Expert Comment

ID: 12562724
I have used Ghost to backup and restore RAID1 arrays a few times.  I also have a couple of friends who use it at their work.  Basically we have all used it when performing drive upgrades.  I just used Symantec Ghost 8.0 about 3 months ago to backup a Dell server running RAID1 (Perc4/SC SCSI RAID controller) and restore it to larger disks (36GB to 73GB).  It worked like a charm.  I had no idea this wasn't a supported configuration as I've used this several times.  Then again, I have not used it to backup a RAID0 and then restore to a RAID0+1, but it *should* work.

Again, if you do choose to try this, I would also get a backup on tape too.

Any way you slice it this is going to be quite the project.  It should go well though, but as you probably know, you have to plan for the worst.

LVL 15

Expert Comment

ID: 12578756
What RAID controller are you using? It might be possible through some model's BIOS...


Featured Post

Prep for the ITIL® Foundation Certification Exam

December’s Course of the Month is now available! Enroll to learn ITIL® Foundation best practices for delivering IT services effectively and efficiently.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Concerto Cloud Services, a provider of fully managed private, public and hybrid cloud solutions, announced today it was named to the 20 Coolest Cloud Infrastructure Vendors Of The 2017 Cloud  (http://www.concertocloud.com/about/in-the-news/2017/02/0…
How much do you know about the future of data centers? If you're like 50% of organizations, then it's probably not enough. Read on to get up to speed on this emerging field.
This Micro Tutorial will teach you how to reformat your flash drive. Sometimes your flash drive may have issues carrying files so this will completely restore it to manufacturing settings. Make sure to backup all files before reformatting. This w…
Despite its rising prevalence in the business world, "the cloud" is still misunderstood. Some companies still believe common misconceptions about lack of security in cloud solutions and many misuses of cloud storage options still occur every day. …
Suggested Courses
Course of the Month14 days, 23 hours left to enroll

839 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question