asked on server 2012 raid5 RAW
My windows server 2012 now shows my RAID volume (3 disk 1Tb each) as RAW. Also shows Redundancy fault in risk.
How can I solve that ? I
How can I solve that ? I
Windows Server 2012StorageHardwareServer HardwareStorage Software
Last Comment
Jose Bredariol
Replace the bad disk of your array and then allow it to rebuild. If after that your array is still raw, check if there is another disk that went bad, and replace that. If not, build a new array (I wouldn't recommend RAID 5. RAID 1, 6 are much more reliable), then just restore the data from your backups.
ASKER
All three disks are in RAW format, two of them are online, the other one is on error.
I could't replace this one, because the remove disk option is not enable.
I could't replace this one, because the remove disk option is not enable.
What kind of RAID controller is? Is this a hardware RAID or software one?
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James Murphy
ASKER
Windows 2012 server - RAID is software
Means you are working with dynamic drives which you combined into RAID via Windows Disk Management, right?or is this an onboard RAID controller?
Can you list the brand and model of the hardware components in the server so we can help you better?
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ASKER
Yes, you are right, it´s from Windows Disk Manager. 3 samsung disk 1Tb each, motherboard intel DH61WW.
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i replaced the disk, but i'm not able to mount the volume yet.
I'm sending the picture attached.
IMG-5900.JPG
I'm sending the picture attached.
IMG-5900.JPG
Looks like the old RAID-5 second disk failed problem.
RAID-5 can sustain failure of one drive, but if not replaced and rebuilt, a second drive failure means your data is lost.
Two points about RAID-5
1) Not recommended implemented via software due to the high CPU overhead involved.
2) Now not recommended at all with v large disks (>500GB) due to the risk of a second disk failing during the extended rebuild time of the first disk.
Consider RAID10 or maybe RAID-6
RAID-5 can sustain failure of one drive, but if not replaced and rebuilt, a second drive failure means your data is lost.
Two points about RAID-5
1) Not recommended implemented via software due to the high CPU overhead involved.
2) Now not recommended at all with v large disks (>500GB) due to the risk of a second disk failing during the extended rebuild time of the first disk.
Consider RAID10 or maybe RAID-6
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William Peck
ASKER
Can I implement RAID6 or 10 via software
Nope.
ASKER CERTIFIED SOLUTION
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ASKER
Thanks all
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