Data reduction function of volumes

Virtual Storage Platform One SDS Block Cloud Setup and Configuration Guide

Version
1.14.x
Audience
anonymous
Part Number
MK-24VSP1SDS008-01

VSP One SDS Block provides function for compressing and storing data, enabling the use of volumes with reduced storage pool usage. This type of volume is referred to as a "volume with data reduction enabled".

Carefully read the following when using the volume with data reduction enabled.

  • The effect of data compression differs depending on how easily the data compression can be performed.

  • Since data compression/decompression is performed, I/O performance might be degraded compared to normal volumes.

For details about the data reduction function of volumes, see the VSP One SDS Block System Administrator Operation Guide.

Requirements for enabling the data reduction function of volumes

Item

Requirement

See:

Instance type

r6i.8xlarge

For details about instance type settings, see Storage node requirements.

Write back mode with cache protection function

Enabled

For details about the write back mode with cache protection function settings, see Managing the write back mode with cache protection in the VSP One SDS Block System Administrator Operation Guide.

CAUTION:

It is not possible to switch a volume with data reduction enabled to a volume with data reduction disabled or vice versa.