I have a IBM xSeries 346. It was showing 1 hard disk defunct. I boot through the diagnose cd and tried to rebuild. It didnt work. So I replaced it with another hard disk (same model) and rebuild it. After rebuilding was completed, I reset the server but it wont boot. It shows a blank screen and nothing happens. I have windows server 2003 as a operating system and also use raid 5. I really need to solve this to get some data from the disk and I really aprettiate any help, suggestions, etc.
You don't say whether or not your os is on the RAID 5 partition. Assuming that it is (for performance reasons, this is not recommended) then you should check to see if you have the option of configuring a separate raid configuration on your raid card (e.g. do you have a card with more then one RAID channel?) If this is so, I would create a separate RAID 1 array and install the OS just on that. Then you can mount the RAID 5 array with your data intact. Once you're up and running, you can remove the old OS partition, as it's no longer needed.
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Unfortunately, a three disk RAID 5 can only tolerate a single drive failure. Is it possible that disk 0 and disk 1 were reversed? If so, then you might be dealing with only one failed drive and might be able to rebuild the RAID if you get disks back where they belong.
Otherwise, you will need to send the disks off to a data recovery service and hope for the best. This is only viable if the data is very valuable as this will be very expensive. Typically more than $1000 just to evaluate and diagnose.
First create a floppy disk with your RAID driver for W2K3 Server. Next boot the server with the W2K3 Server CD, and hit F6 when prompted, and S to add the specific driver for your RAID and using the floppy to get the driver installed.
Next boot to the recovery console of W2K3 Server. If it finds your hard disk, it will even ask for your Administrator's Password to continue. If this works, then you are probably home free.
Get to the command line of the W2K3 Server Repair console and perform some directory searches to see if the data is there and intact. You can also perform a CHKDSK from that console.
Once you have made sure your data is there and intact, type these two commands: FIXMBR and FIXBOOT
This should solve the problem and when you EXIT out of the console, it should reboot. Remove the CD and it "should" re-boot from the hard disk.
If you still have problems, let me know with how far you got with the steps above. I have another solution but need to know your RAID controller's model (ServeRAID 5i, 6i, etc).