RAID 10 DATA RECOVERY

RAID 1+0 sometimes called RAID 1&0, or RAID 10, is similar to a RAID 0+1 with exception that the RAID levels used are reversed — RAID 10 is a stripe of mirrors. Below is an example where three collections of 120 GB level 1 arrays are striped together to make 360 GB of total storage space.

All but one drive from each RAID 1 set could fail without damaging the data. However, if the failed drive is not replaced, the single working hard drive in the set then becomes a single point of failure for the entire array. If that single hard drive then fails, all data stored in the entire array is lost. As is the case with RAID 0+1, if a failed drive is not replaced in a RAID 10 configuration then a single uncorrectable media error occurring on the mirrored hard drive would result in data loss. Some RAID 10 vendors address this problem by supporting a "hot spare" drive, which automatically replaces and rebuilds a failed drive in the array.

Given these increasing risks with RAID 10, many business and mission critical enterprise environments are beginning to evaluate more fault tolerant RAID setups that add underlying disk parity. Among the most promising are hybrid approaches such as RAID 51 (mirroring above single parity) or RAID 61 (mirroring above dual parity). RAID 10 is often the primary choice for high-load databases, because the lack of parity to calculate gives it faster write speeds.

The Linux kernel RAID10 implementation (from version 2.6.9 and onwards) is not nested. The mirroring and striping is done in one process. Only certain layouts are standard RAID 10 with the rest being proprietary.

RAID 0+1 (also called RAID 01, not to be confused with RAID 1), is a RAID used for both replicating and sharing data among disks. The difference between RAID 0+1 and RAID 1+0 is the location of each RAID system — RAID 0+1 is a mirror of stripes. The size of a RAID 0+1 array can be calculated as follows where n is the number of drives (must be even) and c is the capacity of the smallest drive in the array:

Consider an example of RAID 0+1: six 120 GB drives need to be set up on a RAID 0+1. Below is an example where two 360 GB level 0 arrays are mirrored, creating 360 GB of total storage space.

At RAID Recovery Labs our mass storage engineers have extensive experience performing RAID 10 data recovery and RAID 0+1 data recovery (the reverse RAID 10) for many years. Our engineers repeatedly recover where other so called data recovery companies have failed.

• We specialize "ONLY" in raid array data recovery.
• Over 90% of all our recoveries are successfully completed the same day it was received.
• All work is done in our lab, we are not a data recovery broker.
• Our recovery success rate is the highest in the industry.
• We repeatedly recover what other recovery companies deemed "unrecoverable".
• All calls are handled by actual RAID recovery engineer, no sales people.
• We offer the lowest overall pricing in the industry, no price gouging.
• Lab hours are 24/7, 365 days per year.
• No emergency fee's
• Discount pricing for Students, Education Institutions, Non-Profits, Military and Government.