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RAID 1 Data Recovery Services

DataTech Labs® provides fast, professional RAID 1 data recovery services. Our expert recovery engineers will work around the clock to ensure that your critical data is retrieved as quickly as possible. We understand that each customer’s situation is unique, so we will analyze each hard drive in your RAID 1 array to determine the best recovery method for each of our clients.

RAID 1 Data Recovery Services

A RAID 1 configuration requires at least two hard drives. Also known as mirroring, everything written to the first drive is also written to the second. RAID 1 provides excellent data protection, because if one drive fails all of the data is still available on the second drive. This array takes a hit to performance since all data must be written twice. From a data recovery standpoint, both disks must still be evaluated to determine the best way to extract a users data.

What is RAID 1?

In a RAID 1, data is mirrored, meaning all data is written identically on each drive in the RAID 1 array. This is ideal for reliability because when one disk fails, the remaining disk has copies of the data and the system can still be up and running. When replacing the bad drive, data will be automatically rebuilt from the good drive onto the new drive. With a RAID 1, performance and speed are about the same as a single hard drive. Also, since there is complete redundancy, space on this RAID has smaller usable storage capacity.

Such an array can only be as big as the smallest member disk. A classic RAID 1 mirrored pair contains two disks (see diagram), which increases reliability geometrically over a single disk. Since each member contains a complete copy of the data, and can be addressed independently, ordinary wear-and-tear reliability is raised by the power of the number of self-contained copies.

To understand RAID 1 failure rates consider a RAID 1 with two identical models of a disk drive with a weekly probability of failure of 1:500. Assuming defective drives are replaced weekly, the installation would carry a 1:250,000 probability of failure for a given week. That is, the likelihood that the RAID array is down due to mechanical failure during any given week is the product of the likelihoods of failure of both drives. In other words, if the probability of failure is 1 in 500 and if the failures are statistically independent then the probability of both drives failing is:

Some typical scenarios that cause RAID 1 data loss include:

  • Accidental File Deletion or formatting
  • Software errors cause by file corruption
  • Multiple Hard Drive Failure
  • Failed Operating Systems
  • Complications from a RAID rebuild

For Additional RAID Levels Select:

What to do when a RAID 1 Fails.

Although it might seem like the most logical thing to try, but do not attempt to rebuild the array. Doing so could contribute to damaging the platters or corrupting the drives through operating in a failed condition.

Also, avoid using disk utilities like Scandisk. Although RAID 1 has the most resilience t this occurrence, running them while your RAID 1 array has damage can contribute to data loss. To ensure the best chance for data recovery, shut the RAID 1 system down and call a data recovery professional for assistance on what to do next.

 DataTech Labs Experience with RAID 1

At DataTech Labs our experienced engineers have extensive success performing RAID 1 data recovery for many years. No matter what the manufacturer, controller, file system, parity type or variant:

If you’ve been to another recovery company and they have failed your job, call us, we repeatedly recover where others fail.

  • Our recovery success rate is the highest in the industry
  • We repeatedly recover what other recovery companies deemed “unrecoverable”
  • We offer the lowest overall pricing in the industry, no price gouging
  • Lab hours are 24/7, 365 days per year
  • We have engineers specifically trained to handle RAID array data retrieval
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