RAID 10 Data Recovery
RAID 10 (1+0) stripes data across mirrored pairs of drives. It offers excellent performance for databases, virtual machines and email servers, and it can survive multiple failures – as long as both drives in the same mirror do not fail.
When both drives in one pair fail, the array is lost. We recover these by repairing the failed drives and re-assembling the stripe across the mirrors.
Common RAID 10 Failures
- Both drives of one mirrored pair failed
- Controller failure on a database or virtualisation server
- Array recreated with the wrong disk order
- SQL Server, Exchange or VM corruption after an unclean shutdown
How We Recover a RAID 10 Array
We first identify which disks form each mirrored pair, then select the best member of every pair – newest and most readable – and stripe across them in the correct order. If both disks of one pair are damaged, we repair them in the cleanroom and merge their readable areas. For database and virtualisation servers we then check the consistency of SQL Server, Exchange or VMDK files before returning them.
Before You Do Anything
If your array has failed: do not force a rebuild, re-initialise the array, run CHKDSK/fsck, or swap drives between slots. Label every disk with its slot number, shut the system down cleanly if you can, and call us on 020 7064 4996. Most unrecoverable RAID cases we see were made worse by a rebuild attempted on the wrong disk.
See RAID & server data recovery for the servers, controllers and NAS systems we support.
Frequently asked questions
Can you recover databases from RAID 10?
Yes. We recover Microsoft SQL Server, Exchange, MySQL/MariaDB, PostgreSQL and Oracle files, and we can repair many corrupted database files once the array is rebuilt.
Free assessment, no obligation. Call 020 7064 4996 or use the form on this page – an engineer will tell you what can be recovered and what it will cost. Book online · Pricing · Locations