Amazon EFS - A Glimpse into Elastic File Harmony ππ
1. EFS Essentials ππ
NFS Marvel:
Managed NFS (Network File System) compatible with multiple EC2 instances.
Multitude of EC2 instances across multi-AZ for enhanced availability.
Offers high availability, scalability, with costs 3x that of gp2 (EBS).
2. Architectural View π°π
Multi-AZ Ecosystem:
Presence across us-east-1a, us-east-1b, us-east-1c.
EC2 instances harmoniously interacting with EFS.
Navigating EFS Use Cases and Protocol ππ
1. Versatility in Use Cases ππ‘
Adaptable Scenarios:
- Optimal for content management, web serving, data sharing, and WordPress.
Protocol Harmony:
Leveraging NFSv4.1 protocol.
Integration with security groups for EFS access control.
2. Key Features and Characteristics ππ
Linux Compatibility:
Primarily compatible with Linux-based AMIs (Not Windows).
Data encryption at rest fortified by KMS.
Adheres to POSIX file system standards.
Dynamic scalability, pay-per-use, eliminating the need for capacity planning.
EFS Performance Unveiled ππ
1. Performance Dynamics ππ
Scaling Horizons:
Accommodates thousands of concurrent NFS clients.
Achieves throughput exceeding 10 GB/s.
Performance Modes:
General Purpose:
- Suited for latency-sensitive tasks like web servers and CMS.
Max I/O:
- Catering to high-latency, high-throughput, and parallel workloads.
Throughput Modes:
Bursting:
- 1 TB provides 50 MiB/s with bursts up to 100 MiB/s.
Provisioned:
- Settable throughput, irrespective of storage size (e.g., 1 GiB/s for 1 TB).
Elastic:
- Auto-scales throughput based on workload demands, reaching up to 3 GiB/s for reads and 1 GiB/s for writes.
EFS Storage Classes - Architecting Efficiency πποΈ
1. Storage Class Spectrum πποΈ
Lifecycles at Play:
- Storage tiers governed by lifecycle management (file movement after N days).
Standard vs. Infrequent Access (IA):
Standard:
- Tailored for frequently accessed files.
Infrequent Access (IA):
Cost-efficient for storing with lower retrieval costs.
Activate EFS-IA via Lifecycle Policy.
EFS vs. EBS - A Comparative Odyssey ππ
1. Elastic Block Storage (EBS) Insights ππ½
EBS Volumes:
Exclusive attachment to one instance (excluding multi-attach io1/io2).
Locked at the Availability Zone (AZ) level.
gp2: IO scales with disk size; gp3 & io1 can independently increase IO.
AZ Migration Tactics:
- To migrate EBS across AZs: Snapshot creation followed by restoration.
EBS vs. EFS Dynamics:
EBS for single-instance scenarios; EFS for multi-instance ecosystems.
EFS tailored for Linux instances leveraging NFS.
EFS boasts higher pricing, alleviated by EFS-IA for cost efficiency.
π Elevate your understanding: EFS vs. EBS vs. Instance Storeβwhere each piece fits in the AWS puzzle. Explore the file system intricacies, and architect your storage strategy with wisdom. ππ