We have recently retrieved database files from another damaged RAID 10 Array with four drives.
In our previous posts, we have mentioned that RAID 10 is a more recommended solution for databases. This is the rule that most IT engineers follow.
Still, a proper RAID monitoring system often seems to be ignored. Any RAID system needs to be checked regularly.
RAID Arrays are protected against minor hardware failure. However, there are many other scenarios that they do not guard against. No RAID system is a substitute for a backup.