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Raid Array Error Messages

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Gaming Smartphones Tablets Windows 8 PSUs Android Your question Get the answer Tom's Hardware>Forum>Storage>Raid 1 error message> Raid 1 error message Tags: Hard Drives NAS / RAID Error Message Windows XP Storage Last response: foreign configuration found on adapter 20 December 2010 12:03 in Storage Share cablebeacher 18 December 2010 06:15:31 Hi all, there are offline or missing virtual drives with preserved cache I have a slight problem that I have searched to find an answer but have been unsuccessful. If anyone can dell raid foreign configuration found assist I would be grateful. I have had my Windows XP running on Raid 1 for some tome quuite happily. I got an error message the other day on bootup "disk member of some configured disks have been removed from your system or are no longer accessible array has failed or is not responding" . When i go into the raid manager idt also confirms a disk status is "critical". If I unplug each hardrive and re-start the system runs normally each time. It also runs normally with both H/Drives plugged in. I would have thought unplugging and running each HDrive would show which one was at fault? I ran CHKDSK on each individual Ddrive

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with no errors. Could it be the Raid controller? I am only using the onboard ATI Raid controller whick XP says is running OK. Any ideas? regards mal More about : raid error message Paperdoc a c 466 G Storage 20 December 2010 12:03:18 When one of the two units in a RAID1 array fails, the normal operation is that the RAID controller reverts to using ONLY the remaining good unit so that you can keep working with no interruption. However, you have lost the automatic mirroring function so the controller also puts out a warning message to let you know that you need to fix the problem. The fact that your system seems to continue working OK is what it's supposed to do to help you. Within the RAID manager it tells you more than just you have a failure - it also tells exactly WHICH of the two units has failed. This may be by specifying a mobo SATA port number, or by specifying the serial number of the HDD that has failed. If you still cannot figure it out from that, try unplugging only ONE of the two drives in your RAID array. If you leave t

array status 1.3 Simulating a drive failure 1.3.1 Force-fail by hardware 1.3.2 Force-fail by software 1.4 Simulating data corruption 1.5 Monitoring RAID arrays Detecting, querying and testing This section

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is about life with a software RAID system, that's communicating with the arrays there are offline or missing virtual drives with preserved cache ibm and tinkertoying them. Note that when it comes to md devices manipulation, you should always remember that you are foreign configuration found on adapter press any key to continue or c working with entire filesystems. So, although there could be some redundancy to keep your files alive, you must proceed with caution. Detecting a drive failure Firstly: mdadm has an excellent 'monitor' mode http://www.tomshardware.com/forum/264787-32-raid-error-message which will send an email when a problem is detected in any array (more about that later). Of course the standard log and stat files will record more details about a drive failure. It's always a must for /var/log/messages to fill screens with tons of error messages, no matter what happened. But, when it's about a disk crash, huge lots of kernel errors are https://raid.wiki.kernel.org/index.php/Detecting,_querying_and_testing reported. Some nasty examples, for the masochists, kernel: scsi0 channel 0: resetting for second half of retries. kernel: SCSI bus is being reset for host 0 channel 0. kernel: scsi0: Sending Bus Device Reset CCB #2666 to Target 0 kernel: scsi0: Bus Device Reset CCB #2666 to Target 0 Completed kernel: scsi: aborting command due to timeout: pid 2649, scsi0, channel 0, id 0, lun 0 Write (6) 18 33 11 24 00 kernel: scsi0: Aborting CCB #2669 to Target 0 kernel: SCSI host 0 channel 0 reset (pid 2644) timed out - trying harder kernel: SCSI bus is being reset for host 0 channel 0. kernel: scsi0: CCB #2669 to Target 0 Aborted kernel: scsi0: Resetting BusLogic BT-958 due to Target 0 kernel: scsi0: *** BusLogic BT-958 Initialized Successfully *** Most often, disk failures look like these, kernel: sidisk I/O error: dev 08:01, sector 1590410 kernel: SCSI disk error: host 0 channel 0 id 0 lun 0 return code = 28000002 or these kernel: hde: read_intr: error=0x10 { SectorIdNotFound }, CHS=31563/14/35, sector=0 kernel: hde: read_intr: status=0x59 { DriveReady SeekComplete DataRequest Error } And, as expected, the classic /proc/mdstat

associated with the member disks (operator error or controller failure). RAID 5 failures RAID 5 can fail due to any of the mentioned above reasons. However, RAID5 is a redudant array which means it can survive failure of one of the member disk. http://www.freeraidrecovery.com/library/raid-failures.aspx If failure of your RAID5 affects only one member disk then you are lucky and can easily get your data back. In case of multiple disk failures there is zero chance of recovering the array data. Failure of one of https://www.qnap.com/i/en/qa/con_show.php?op=showone&cid=57 the RAID5 member disks You can notice that one of the member disks has failed if: For a NAS, the LED corresponding to the damaged disk turns red; Drivers or RAID5 controlling software produce the message that the disk foreign configuration has failed. In these situations all you need to do is to replace a failed disk and start a RAID rebuild. Failure of several RAID5 member disks You can realize that several RAID5 member disks have failed based on the following signs: For a NAS, the LEDs corresponding to the failed disks turn red. The array is not accessible; however, it seems that controller works properly. Since RAID5 is capable to survive single member disk failure only, then foreign configuration found for multiple disk failures it is impossible to recover data that was on the failed disks. However, you can try to recover data which is contained on the remaining disks. Files can be restored in the following cases: A file is located on a good disk and a file size is less than a block size. A file occupies several consequent blocks located on the good disks. Other RAID 5 failures not associated with the member disks Such RAID5 failures include operator errors, controller failures, or RAID5 controlling software failures. In this case RAID5 configuration metadata is lost, but the member disks are working properly. With these failures, it is possible to recover data from RAID5. First, you should determine the array configuration parameters and then recover data from the array using any data recovery software. RAID 5 configuration includes: number of member disks, disk order, along with what disk was the first in the array, block size, start offset on the disks, parity position and rotation. The detailed instructions on how to recover RAID 5 are provided on the RAID 5 recovery page. RAID 1E failures Although RAID1E is not a typical array layout, it is subject to the same types of failure as more common arrays are, such as member disk failures or an operator error. But not all the RAID 1E failures lead to data loss, for example in case o

 

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