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RAID 5 - emergency
hi group
I have a problem I have a motherboard INTEL DX58SO (i7) I have a RAID 5 - 4 using HDS - one stopped I put it in ignorance for "no-raid" in the raid manager. I like this recuprerar RAID? This partitioned as follows: 200 GB - system - windows is not starting 3400 GB - files If I install windows on the system partition (200GB) RAID will recreate the partition of the files? Please know who you want to contact my email: skype: gui_routing TKS all. |
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RAID 5 - emergency
Guilherme Carvalho wrote:
hi group I have a problem I have a motherboard INTEL DX58SO (i7) I have a RAID 5 - 4 using HDS - one stopped I put it in ignorance for "no-raid" in the raid manager. I like this recuprerar RAID? This partitioned as follows: 200 GB - system - windows is not starting 3400 GB - files If I install windows on the system partition (200GB) RAID will recreate the partition of the files? Please know who you want to contact my email: skype: gui_routing TKS all. In this thread, a participant suggests going into the RAID BIOS screen, and change from "no-raid" back to the exact same RAID parameters as you used before. You must use the same stripe size and so on. If you're not in the habit of tuning things, then the default values will likely be exactly what is required. http://communities.intel.com/thread/3351 That works, as long as you do not move the drives from one port to another. For it to work, the drives must be put back on the same ports, as they were on when the drives were working in RAID mode. For a RAID with a large number of disks, where you randomly reinstalled them, it could take some time to discover the right connection order again. Running TestDisk, as described below, can help verify the RAID is now working. You do not need to boot into the RAID array OS, to do this. A Linux LiveCD, run TestDisk from there, can help verify you've done everything exactly right. And then you can try booting from the RAID (if it contained the OS). *Never* run a RAID, without backup images !!! ******* Similar recovery information in post #6 here. http://forums.extremeoverclocking.co....php?p=3329132 1. Reset both HDs to non-member using Intel BIOS utility - the utility warns that all data will be lost - in fact only metadata is lost and can be recreated using steps below. 2. Create a new array with identical settings as the broken array. It is critical that the HDs are in the array the same order as before. I was reconnecting the drives several times and lost track of correct order. Because of that I had to go through the steps twice (I guessed wrong the first time). 3. Get TestDisk from http://www.cgsecurity.org. I used Windows version (I installed a new Vista on a separate HD for this purpose). [ Testdisk can be run from a Linux LiveCD as well. ] 4. Run TestDisk according to steps on the web site. If your HDs are connected in correct order, TestDisk should find the lost partition(s) within a few seconds. It ran for several hours, scanning my array and never found anything because I had HDs were connected in wrong order. After I changed the order and restarted from step #1 TestDisk found the missing partition immediately. 5. Have the TestDisk write the fixed partition table to the drive and reboot. [Note : If TestDisk found the partitions, chances are at this point, everything is OK. Don't panic and start writing stuff for nothing! In general, only use the write function in TestDisk, when you're absolutely sure there is no other available recovery option.] 6. Now all your data on the array should be readable but the system might not boot (it didn't for me). 7. Run Vista repair from installation CD to fix the MBR. [Note: When the author of this solution did step (5), that is why step (7) is needed. Overwriting the MBR, loses the MBR boot code.] 8. Last but not least, send a donation to Mr. Grenier, the author of TestDisk. [Sage advice...] ******* HTH, Paul |
#3
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RAID 5 - emergency
On Sun, 28 Apr 2013 17:13:15 -0700 (PDT), Guilherme Carvalho
wrote: hi group I have a problem I have a motherboard INTEL DX58SO (i7) I have a RAID 5 - 4 using HDS - one stopped I put it in ignorance for "no-raid" in the raid manager. I like this recuprerar RAID? This partitioned as follows: 200 GB - system - windows is not starting 3400 GB - files If I install windows on the system partition (200GB) RAID will recreate the partition of the files? Please know who you want to contact my email: skype: gui_routing TKS all. *IF* your controller permits it you need to recreate the volumes just as they were but do *NOT* initialize them!!! If that's not an option you're probably going to have to use some sort of RAID reconstructor tool--and that means you'll need lots of free drive space to work with. The only such tool I've played with would need 6.8tb of free space for a full recovery. |
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