Amazon Elastic Block Store Concepts: Difference between revisions
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=EC2 and EBS= | =EC2 and EBS= | ||
{{Internal|Amazon_EC2_Concepts#Amazon_Elastic_Block_Store_.28EBS.29|EC2 and EBS}} | |||
=Block Device= | =Block Device= | ||
Revision as of 21:03, 10 December 2019
Internal
EC2 and EBS
Block Device
Block Device Mapping
Each instance has a root device volume.
A block device is a storage device that moves data in sequences of bytes or bits (blocks). These devices support random access and generally use buffered I/O. Examples include hard disks, CD-ROM drives, and flash drives. A block device can be physically attached to a computer or accessed remotely as if it were physically attached to the computer.
Amazon EC2 supports two types of block devices:
- Instance store volumes - virtual devices whose underlying hardware is physically attached to the host computer for the instance.
- EBS volumes - remote storage devices.
Volume
Each volume has a volume ID