Ransomware attackers specifically target and attempt to destroy backup systems to increase the probability of payment. Hardening your system is critical. Please ensure you have reviewed your platform security using the Security Hardening Checklist
About restoring to dissimilar disks — NetBackup 10.3 | Cohesity Documentation
You can restore a protected client even if the disk drives were replaced. You also can perform a dissimilar disk restore (DDR) if you need to change the volume layout or size or restore only some of the disks or volumes.
