10.0.0.89: Criou página com 'EBS is like the virtual disk of a VM: Durable, instances backed by EBS can be freely started and stopped (saving money) Can be snapshotted at any point in time, to ge...'

2016-10-31T18:40:39Z

Criou página com 'EBS is like the virtual disk of a VM: Durable, instances backed by EBS can be freely started and stopped (saving money) Can be snapshotted at any point in time, to ge...'

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EBS is like the virtual disk of a VM:

Durable, instances backed by EBS can be freely started and stopped (saving money)
Can be snapshotted at any point in time, to get point-in-time backups
AMIs can be created from EBS snapshots, so the EBS volume becomes a template for new systems

Instance storage is:

Local, so generally faster
Non-networked, in normal cases EBS I/O comes at the cost of network bandwidth (except
Has limited I/O per second IOPS). Even provisioned I/O maxes out at a few thousand IOPS
Fragile. As soon as the instance is stopped, you lose everything in instance storage.

Here's where to use each:

Use EBS for the backing OS partition and permanent storage (DB data, critical logs, application config)
Use instance storage for in-process data, noncritical logs, and transient application state. Example: external sort storage, tempfiles, etc.
Instance storage can also be used for performance-critical data, when there's replication between instances (NoSQL DBs, distributed queue/message systems, and DBs with replication)
Use S3 for data shared between systems: input dataset and processed results, or for static data used by each system when lauched.
Use AMIs for prebaked, launchable servers

Diferença entre disco local e EBS - Histórico de revisão

10.0.0.89: Criou página com 'EBS is like the virtual disk of a VM: Durable, instances backed by EBS can be freely started and stopped (saving money) Can be snapshotted at any point in time, to ge...'