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Data recovery after raid failure - Buffalo Technology LinkStation Pro Duo (LS-W1.0TGL/R1) Network Storage Server

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Hi, within the previous 12hrs my e-series server bombed out - there are two issues (1) Memory DIMM malfunction (2) serveRAID-7k error 2807... I removed the faulty memory DIMMs, but the RAID error still...


You can recover RAID data from hard drive with RAID recovery software easily.
Tenorshare Data Recovery Enterprise is a comprehensive data recovery software that supports RAID recovery for RAID 0 and RAID 5. Lost data in RAID 0 and RAID 5 can be deeply scanned and restored immediately. Meanwhile, files and folders in RAID 0 and RAID 5 can be copied to other partitions directly. http://www.any-data-recovery.com/product/datarecoveryenterprise.htm

Aug 29, 2011 | IBM ServeRAID-7k Controller (71p8642) SCSI...

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Dell poweredge 2600 server recently display a message " No boot device available Press F1 to reboot or F2 to setup" Please why?


Did you experience a power event? Go to BIOS (F2), and make sure that RAID is Enabled. If RAID got turned off (power event, BIOS reset), then it will give you that message. If RAID is already enabled, then you may need to repair your operating system. If something else happened (drive failures, drives removed, etc.), then the array may be completely gone. Call Data Recovery services if it is critical you retreive the data.

Aug 03, 2010 | Dell PowerEdge 2600 Server

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RAID-1 failure on Dell Dimension 9100 Desktop


Since you are using RAID 1 (Mirroring) you will only need to send one drive for data recovery.
Since the Dimension 9100 uses SATA HDDs yes you can increase the storage capacity up to a matched pair of 650GB drives. I'd suggest you use the most current BIOS revision, but SATA controllers seem to be much more agreeable to large HDDs vs the EIDE ones before them.
RAID is redundancy, but it is not a data backup, as you have learned. Important data should be backed up to DVDs monthly/quarterly etc. and you can even do critical backups weekly.

Jan 06, 2010 | Dell Dimension 9100 PC Desktop

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Data recovery


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.

Jul 09, 2009 | IBM eServer xSeries 225

2 Answers

Raid failure


Not a lot of details, but here is some basic information, assuming you have a Dell with Integrated RAID

Dimension 9150/9200 and XPS systems have RAID, depending on the model the exact troubleshooting differs. At boot, after the Dell screen, you should get the RAID status listing. RAID 0 will either be normal or failed. Raid 1 can be normal, degraded for failed.

If the RAID array was RAID 0 and one of the drives failed, then all data is lost and you'll have to create a new array then reinstall Windows and drivers

If the RAID array was RAID 1, then you may need to add the new drive to the Array, CNTL+I or CNTL+N at boot (Depending on the system model) add the new drive to the array and reboot. If the system still will not boot to Windows, then you may have a software error too with the OS.

If during troubleshooting, the array was broken in the RAID BIOS, then the array will need to be recreated and Windows/Drivers reinstalled.

Jun 11, 2008 | Dell Dimension 2350 PC Desktop

1 Answer

RAID 0 Array disappeared after reboot


I would try the hard drive on another sata controller/port to verify that the bad drive is in fact bad. If it is really bad, then no there is nothing you can do but replace the drive and recreate the array (losing all data!).

You can not 'recover' a failed RAID-0 array because there is no parity or mirror data on an extra disk like there is with the other RAID modes. This is why people recommend against using RAID-0 for important data (unless you take frequent backups): RAID-0 actually increases your likelihood of losing your data. Statistically speaking, you are multiply the failure rates of each individual drive together.

Dec 22, 2007 | Promise FastTrak S150 TX2Plus Serial ATA...

2 Answers

Raid w/ hard drive defunct


Well lets make some assumptions
1. You have a Raid 5 System
2. You only have 3 drives in the Raid ARRAY
3. Only 1 drive has failed

To fix the problem you should only need to Replace the Failed Drive
Then start the raid management software or bios
Rebuild the array

If you have more than 1 drive failed in a RAID 5, and still must recover the data it is possible. But very expensive. Still fixable however.

Sep 23, 2007 | IBM xSeries 226 Server

2 Answers

Raid 5 crashed


Hi Chris,

How many drives are part of the array and what type are they? Are the drives making any unusual sounds like clicking or screeching? If not, then you should be able to recover the data. If the drives are making clicking sounds, you will probably need a professional data recovery service that specializes in Raid 5 data recovery to help you.

If the controller shows that only 1 drive is bad, you should be able to rebuild it by replacing that drive. If the controller shows all the drives are bad, then it is most likely a problem with the Raid 5 controller itself. In this case, you could try putting the drives in a working version of the same enclosure/controller.

Check the obvious also, like loose connections to the drives. Whatever you do, dont force a rebuild as this will probably result in permanent data loss.

Wesley Gill
Gillware Inc.
Raid Recovery Info

Aug 28, 2007 | D-Link DNS 6040M (DNS-6040M) Hard Drive...

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