| title | Block Storage - Concepts | ||||
|---|---|---|---|---|---|
| description | Explore essential concepts of Block Storage, including block devices, IOPS, SANs, local volumes, and their roles in enhancing storage performance and reliability. | ||||
| tags | block storage volumes concept | ||||
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import AvailabilityZone from '@macros/concepts/availability-zone.mdx' import BlockSnapshot from '@macros/concepts/block-snapshot.mdx' import BlockVolumes from '@macros/concepts/block-volumes.mdx' import LocalVolumes from '@macros/concepts/local-volumes.mdx' import Region from '@macros/concepts/region.mdx' import StorageBootOnBlock from '@macros/storage/boot-on-block.mdx'
IOPS or Input/Ouptut Operations Per Second, is a unit of measurement that indicates how many read/write operations a storage device is performing per second.
Scaleway Block Storage offers two IOPS limits:
- 5000 IOPS (5K IOPS)
- 15 000 IOPS (15K IOPS)
Refer to the dedicated documentation for more information on the IOPS of each Block Storage volume type.
A Storage Area Network (SAN) consists of interconnected machines, network infrastructure and storage devices designed for performance and high-availability. Unlike a Network Attached Storage (NAS) which stores all data on a file level, the SAN stores all data on block level, this makes SAN a perfect solution for business critical applications and input/output intense operations like relational databases. The SAN is a network-connected solution, that operates independently from the local hypervisor hosting the virtual Instance. The storage capacity of the block devices on the SAN can be tailored towards your requirements.
A volume is a storage space used by your Instances. Several volumes can be attached to an Instance. In addition, they can be snapshotted, mounted, or unmounted.