Is it possible to reconfigure RAID5 from 3 disks to 4 without data loss?

Question

RAID

Good afternoon,

There is a hardware raid controller megaraid sas 9260-8i based on LSI 2108. Can you please tell me if it is possible to reconfigure RAID5 on 3 disks with existing data into 4 disks without data loss? Or in any case, you need to backup and reconfigure?

Answer 1

Dig in the direction of reading the manual. On a hardware controller, rebuilding an array without data loss is usually possible. With R5 backup is vital