Kubernetes PVC and Storage Management

Help me manage persistent storage in Kubernetes.

Storage requirements:
- Workloads needing storage: [databases, file storage, caches]
- Storage types needed: [block, file, object]
- Performance requirements: [IOPS, throughput]
- Capacity: [sizes needed]

Cloud/Platform: [AWS EKS/GCP GKE/Azure AKS/on-premise]

Configuration needed:
1. StorageClasses
   - High performance (SSD)
   - Standard (HDD)
   - Shared filesystem (NFS/EFS)
   - Custom provisioners

2. PersistentVolumeClaims
   - Static vs dynamic provisioning
   - Access modes (RWO/RWX/ROX)
   - Volume expansion
   - Volume snapshots

3. Data management
   - Backup strategies
   - Disaster recovery
   - Data migration
   - Cross-AZ replication

4. Operations
   - Monitoring storage usage
   - Alerting for capacity
   - Performance monitoring
   - Cost optimization

Include:
- StorageClass definitions
- Example PVC configurations
- Backup automation
- Monitoring setup