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Amazon EBS (elastic block store) is an example of a cloud block store. [2] Cloud block-level storage will usually offer facilities such as replication for reliability, or backup services. [3] Block-level storage is in contrast to an object store or 'bucket store', such as Amazon S3 (simple storage service), or to a database. These operate at a ...
This is in contrast to block-based storage virtualization, which uses blocks as the basic unit. It is a way to abstract away the physical details of storage and allow files to be stored on any type of storage device, without the need for specific drivers or other low-level configuration. File-based virtualization can be used for storage ...
In the 2.6-series of the Linux Kernel, the LVM is implemented in terms of the device mapper, a simple block-level scheme for creating virtual block devices and mapping their contents onto other block devices. This minimizes the amount of relatively hard-to-debug kernel code needed to implement the LVM.
A storage area network (SAN) or storage network is a computer network which provides access to consolidated, block-level data storage.SANs are primarily used to access data storage devices, such as disk arrays and tape libraries from servers so that the devices appear to the operating system as direct-attached storage.
A hybrid volume is any volume that intentionally and opaquely makes use of two separate physical volumes. For instance, a workload may consist of random seeks so an SSD may be used to permanently store frequently used or recently written data, while using higher-capacity rotational magnetic media for long-term storage of rarely needed data.
In computing, file virtualization is a field of storage virtualization operating on computer file level. It involves uniting multiple storage devices into a single logical pool of file. It is a vital part of both file area network (FAN) and network file management (NFM) concepts.
Distributed block storage is a computer data storage architecture that the data is stored in volumes (known as blocks, a term dating back to Project Stretch [1]) across multiple physical servers, as opposed to other storage architectures like file systems which manages data as a file hierarchy, and object storage which manages data as objects.
Shared storage is not necessarily highly available. For example, a single storage area network accessed by multiple virtualization hosts is considered shared storage, but is not considered highly available at the storage level - if that single storage area network fails, neither host within the cluster can access the shared storage.