To achieve high availability in VMware vSphere:
- Use shared storage like vSAN or VMFS for data resilience and features like vMotion and HA.
- Implement RAID for redundancy to protect against disk failures.
- Configure Multipathing for better performance and automatic failover.
- Monitor storage performance regularly.
- Backup data and have a disaster recovery plan in place.
Following these steps ensures reliable and highly available storage for your virtualized environment.