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RAID Data Recovery | Data Medics
RAID Recovery FAQ (Frequently Asked Questions
RAID Data Recovery Cost?
RAID 5 Array of 6 x 1Tb SATA Hard Drives (One of Which is a Hot Spare)
$325 x 5 Total Drives (hot spare isn’t counted)
RAID 0 Array of 8 SAS or SCSI Hard Drives
$375 x 8 Drives (SAS/SCSI drives are extra)
RAID 5 of 4 x 3Tb SATA Hard Drives
$375 x 4 Drives (Drives Over 2Tb are additional $50/Tb)
These prices cover most hardware repairs necessary to extract data from all necessary drives. However, in some cases, such as when a needed drive will require extensive clean room work, the final quoted cost might be higher.
Evaluation is always free and quotes are always provided before we proceed with the work.
For the current pricing tables, please visit our Data Recovery Prices Page.
How Long Does RAID Recovery Take?
- Hardware Condition – A drive that is fully functional is much faster to recover data from than one that is severely damaged and must be repaired. So cases that are simply related to accidental deletion, format, viruses, etc. are generally pretty quick on the turnaround. Usually within 48 hours for most cases, however, there are times when it takes longer. Drives needing hardware recovery generally take about 7 to 10 days but can take longer based on other factors below.
- Drive / RAID Array Size – Even if a drive is fully functional a 4Tb drive will take as much as 20 hours to perform a single scan, and a typical recovery may involve several scans to effectively find all files. Also as a professional data recovery lab, we always clone the drive first to prevent any possibility of accidents while working with the data. As a rule of thumb expect an extra day for drives larger than 500Gb or a few days for drives larger than 2Tb. Plus for very large arrays, there can be substantial time
- Number of Failed Drives – In striped RAID arrays, the number of failed drives can affect the turnaround time as well. When there are multiple failures all drives must be analyzed to determine which hard drive(s) went offline first so that the correct data is used during the rebuild.
- Availability of Donor Parts – For drives with hardware issues, parts are often needed to repair the drive to a semi-functional condition where the data can be successfully extracted. Some hard drive sub-models are very common and easy to find the parts from one of our vendors. However, others are not. At times we may even have to spend weeks searching online and calling other data recovery labs for the specific drive or parts we need. Or we may even have to buy a donor drive from overseas and wait for it to arrive. Usually, this is the longest part of the whole process for hardware level recoveries.
- Functionality of Drive After Repair – Many makes of hard drives don’t take kindly to replacement parts and don’t function anywhere near their full potential after an internal repair. As drives write magnetic data on a microscopic level, even the slightest variation in manufacturing of parts may cause the drive to constantly have to re-read data over and over. While rare, some drives can take a month or more to extract all the data after such internal repairs.
- Service Type – Customers who need expedited or emergency services pay a bit more for our services, however, they also get priority service. RAID arrays are always treated as Expedited projects and are bumped to the front of the line to be worked on before all other projects. However, the work is still performed during normal business hours. If that isn’t fast enough you can order emergency service (quoted base on expected overtime) and we work through the night, and over the weekend to finish the project as fast as possible.
What Are The Chances of Successful RAID Recovery?
- RAID 0 with one failed drive – 85-90% Chance of Success
- RAID 5 with one failed drive (rebuild failed) – 99% chance of recovery
- RAID 5 with two simultaneous drive failures – 95% chance of recovery
- RAID 5 with two drive failures (non-simultaneous) – 85-90% chance of success
- RAID 6 with one/two failed drives (rebuild failed) – 98% chance of recovery
- RAID 6 with three failed drives – 85-90% chance of recovery
Please note that these numbers are only estimates of the likelihood that the data can be recovered. As each case is different, an evaluation to determine hardware condition must be performed first.
What Happens If The Data Can't Be Recovered?
How Do I Get My Data Back After Recovery?