Amazon Web Services (AWS) offers two types of networked block storage as a service with Elastic Block Storage (EBS): Standard and Provisioned IOPS, which differ primarily by performance. EBS Provisioned IOPS can deliver up to 4,000 IOPS if certain conditions are met, including sufficient requests from the application, read/write operations applying to blocks of 256 KB or less, and no pending EBS snapshots. Monitoring metrics such as VolumeQueueLength and CPU IOWait can help maintain optimal performance for Provisioned IOPS in EBS.