Amazon EKS — Storage
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Persistent storage on EKS is powered by CSI (Container Storage Interface) drivers that integrate with AWS storage services — EBS, EFS, and FSx. This chapter covers driver installation, StorageClass configuration, and backup strategies.
Topics Covered
Storage Comparison
| Feature |
EBS |
EFS |
FSx for Lustre |
| Type |
Block |
File (NFS) |
File (Lustre) |
| Access Mode |
ReadWriteOnce |
ReadWriteMany |
ReadWriteMany |
| AZ Scope |
Single AZ |
Multi-AZ |
Single AZ |
| Use Case |
Databases, single-pod apps |
Shared config, CMS, ML data |
HPC, ML training |
| Performance |
Up to 256K IOPS (io2) |
Elastic throughput |
Sub-millisecond latency |
| Pricing |
$0.08/GB-month (gp3) |
$0.30/GB-month |
$0.14/GB-month |
| Dynamic Provisioning |
Yes |
Yes |
Yes |
| Snapshots |
Yes |
No (use AWS Backup) |
Yes |
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