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RAID Data Recovery

raid data recovery

DTI Data Recovery can restore or recover your RAID 5, SAN, NAS, Snap Server, and many others.

We have certified specialists and file system programmers here at DTI Data Recovery to address your VMFS recovery needs.We run multiple terabyte capable servers to tackle the larger RAIDs that we receive for recovery.

DTI Data offers a FREE evaluation on all RAID 5 systems.

Call Toll Free 1-866-438-6932 ext. 203 or direct 1-727-345-9665 ext. 203 to speak with a qualified RAID data recovery engineer now!

Utilizing custom software and hardware solutions, DTI Data Recovery is the best choice for your vital server data. Don’t be fooled by companies that offer on-site or worse, remote recovery options. Before any utilities are run against a RAID, all the disks must be cloned sector by sector. Just one mistake and all of your data can be lost. We have recovered RAIDs that have been to many of our competitors labs.

In this day and age, there are more and more companies utilizing large storage units. There are few data recovery companies that have the knowledge, expertise, and certifications DTI Data does. We will go the extra mile to recovery your raid 5 array.

Common RAID Data Recovery scenarios:

  • One drive is marked i marked as bad the card and the array is degraded. The drive is forced online and the data gets corrupted.
  • One drive is marked by card as bad and the array is degraded. Drive is not replaced and the array continues to function. Second drive goes down and the array goes down. It is not clear which drive went down first and it becomes difficult to determine which drive has stale data.
  •  An automatic rebuild is started and the wrong drive is used as a rebuild point.
  • Drives are taken out of array and put back in the enclosure out of order.


If your drive has been exposed to natural or man made disaster (fire, water, etc.). Do not apply power. Make sure it is packaged in a waterproofed container until it can be examined by a RAID data recovery professional. A drive that has failed under these conditions must be opened in a clean room environment. Powering up the unit may cause permanent damage to the data and eliminate the possibility of recovery. Your media requires the services of a data recovery professional. Call us now toll free: (866)-438-6932 or direct (727)-345-9665.

Due to the high importance of a RAID system, we consider a RAID data recovery project a top priority. We have a much quicker file recovery and return of your data than our competitors. Our standard turnaround time for RAID data recovery, regardless of the size, is 4-6 business days. This is one of the fastest turnaround times in the industry for RAID Data Recovery.


Surviving a RAID Failure the First 24 Hours

Almost every IT professional who administers a RAID server will at one time or another need to know how to handle a catastrophic fault.  The following is a list of actions to take to give you a fighting chance for a RAID Recovery.

1. Shut down the RAID server

Make sure that all drives have spun down and no power is getting to any of them.  With almost every technician I speak with there is a common thread that each one has.  They have no idea how the original RAID was set up.  They may have an idea of the RAID type but other than that they really don’t have any clue.
With that in mind a RAID can be configured to do an automatic rebuild if it comes back online.  If a stale drive is in the array this will be the end of any chance of data recovery.
The RAID may be configured to do a background surface scan of each drive that can in fact damage any suspect media even further.

2. Image the drives

Before performing any type of initialization, reconfiguration, scrub, or any one of several different RAID reset functions backup your drives.  Pull the drives from the enclosure.  Put the drives in a separate computer and using a sector by sector software imager make images of all the drives.  The end user may be screaming in your face to get back online, but they will be screaming more if you lose their data because you didn’t take a few minutes to back up your drives

3. Check your RAID server backups

Some IT techs will make the mistake of reconfiguring the array and bringing it back online thinking that the backups they have made are golden.  I have literally made thousands of dollars from this kind of thinking.  So, before you go destroying the only chance you may have to recover the lost data, check the backup and the data.
This means, don’t just view the tree, look in the folders and make sure the data is there.  For extremely critical data like email archives (PST) and database files (MDF, LDF, EDB) mount these files in a separate computer to make sure that the data is current and not corrupted.
This will do two things, first you will know if the data is up to date, and second you can start your migration process in case you can’t get the RAID to come back online.

4. Call technical support

There is a BIG caveat with this.  Don’t let anyone into the server unless step 2 and step 3 have been done.  Many of these RAID technicians have no clue about a RAID and are only following a monitor with step by step instructions that are designed to get you back online but not keep your data safe.  I will repeat that.  Most of the technicians are just trying to get you online and are not worried about your exchange data. It’s not a bad thing, just a fact of life.

5. Do not run chkdsk, or fsck, or xfsck, or any other file system checker

These utilities are not designed to save your data; they are designed to align the file system so that it can be mounted.  Chkdsk will destroy MFT entries and any Linux file system checker will blow out an inode before you have time to fix your resume so you can go looking for work.
If these utilities are run then it is a sure sign that you have a stale drive in the array and is probably being automatically rebuilt while you are trying to figure out your next step. I hope you did steps 2 and 3 because it is tough out there looking for a new job.

6. Stay calm

No matter who is screaming, or what end user needs his pictures of his grand children back just ignore them.  Ignore everyone and go about your job at a reasonable pace.  Don’t work for 48 hours, don’t hurry, and don’t do anything that will lead to you making a mistake. Be cool.

7. Call US!

That’s right, call me.  If you get stuck, not sure what to do, call me.  I’ll tell you exactly how to handle your particular situation.  I am a tech first and a businessman second, or third, maybe fourth.  If you call me I will tell you what to do, where you stand, and your best course of action.  My number is (727)345-9665 Ext 203.  That is my cell.  You can get me 24/7.  In the old days when I wrote Public Safety Software I made a few blunders in my technical career and would have given anything to have someone throw me a lifeline. I am willing to do that for you.
In the final analysis there is only so much you can do, and sometimes a professional needs to be called. If after all your options have been exhausted, and I tell you that you need to send the RAID to someone, I hope you remember DTIData and maybe send your troubled RAID to me.