Module 12: Mountable Storage
Cloud Operations on AWS
| Type | Best For | Max IOPS |
|---|---|---|
| gp3 (General Purpose SSD) | Wide variety of workloads | 16,000 |
| io2 (Provisioned IOPS SSD) | Mission-critical, low-latency | 256,000 |
| st1 (Throughput Optimized HDD) | Frequently accessed, throughput-intensive | 500 |
| sc1 (Cold HDD) | Infrequently accessed, lowest cost | 250 |
Create a snapshot (incremental, stored in Amazon S3)
Copy across AWS Regions if needed
Automate with a Data Lifecycle Manager policy (schedule, retention)
Restore to a new volume — enable fast snapshot restore to avoid latency penalty
Issue: An EBS volume shows degraded I/O performance.
Cause: Provisioned IOPS may be below the configured threshold, or the volume is undersized for the workload.
Solution: Check CloudWatch metrics (VolumeQueueLength, BurstBalance) and resize or change the volume type as needed.
Next: Module 13 — Object Storage
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