Rebuild raid 0 without data loss

[Leorot]

Hello,

I have a raid 0, motherboard controller. One of drives failed - raid array is green and bootable, one member shows message " error occurred ", the second member is ok.

1.Is it possible to pull the defective hdd, put in in other computer and scan for errors ? I tried this in windows 8.1 and it cant see it, any ideas ?

2. can I rebuild raid 0, without data loss on healthy hdd ?

thank you.

 

[Someone Somewhere]

RAID 0 has no fault tolerance. AFAIK, there is no way to rebuild other than cloning the defective drive to a working drive, and re-inserting.

This is one of the reasons RAID 0 is not recommended.

 

[reedo_43]

If it is bootable than it has not gone bad. Go into intel matrix storage app and mark it as good or reset, can't remember. Check for loose connections! Maybe just a glitch and no you can't rebuild anything in raid 0. Good luck1

 

[Leorot]

i would love to be able to go into matrix storage app, but how ? i cant start windows, i cant get past os choice f8. and i cant get to dos prompt, because when i start with various methods, my raid cant be seen. therefore, there is no hdd available to work with.

 

[Leorot]

@someone: how do i clone the defective drive ?

 

[Captain_WD]

Hey Leorot,

As the guys mentioned, RAID 0 is generally a non-recoverable type of RAID when a drive from the array fails as it does not provide any redundancy and fault tolerance.

You can have two types of drive failure in a RAID environment: failure of an actual disk or failure not associated with the disks themselves.

If the failure happens to be in the software or the raid controller, you can determine the array configuration (number of disks, disk order, block size, start offset on the disks) and look for a reliable software to rebuild the RAID itself.

If you have a fail drive, you can also attempt a recovery of the healthy one. You would be able to recover only data that is smaller or equal of the blocks' sizes. Even then 100% recovery is not guaranteed. you can again ask around for such software and tr it.

Cloning defective drives is not recommended as data from them might not be read and any errors or corrupted data would be copied onto the new drive and would eventually cause it to also fail. Also the cloning program has to be able to read the drive in order to clone it (unless you are cloning block by block which will miss the bad sectors and make the new drive also unreadable).

Captain_WD.

 

[hang-the-9]

@someone: how do i clone the defective drive ?

You said you tried to read the drive in another computer and it was not seen, that means you can't clone it. To clone it, the system has to see the drive. RAID 0 "recovery" is backups. You sacrifice speed of the drive array for reliabailiy since if one of the two drives fail, you lost all data from both.

 

[Someone Somewhere]

A drive from a RAID 0 pair won't mount, but could still be cloned. Little point unless the drive is showing signs of imminently failing, though.

Once the drive fails, moving the data to another drive won't help at all.

 

[Leorot]

i dont think the drive felt. it might be a problem with the raid controller or the raid itself. since i am a beginner in raid problems, i dont know how to determine if my drive is gone or if there is another problem.

any program that can do that ?