Huawei OceanStor 2000 V3 Series Features Manual page 106

OceanStor V3 Series
HyperMetro Feature Guide for File
Parameter
Application
Scenario
Issue 05 (2018-01-30)
Description
Application scenarios of file
systems.
l VM: File systems apply to
VMs. After this scenario is
selected, the system will set
the block size of file systems
to 8 KB, and automatically
adjust system resources to
adapt to this scenario.
l Database: File systems apply
to databases. You are advised
to use full-SSDs for storage
pools to which file systems
belong and enable the data
compression function.
– When storage pools to
which file systems belong
use full-SSDs, the system
will set the size of a file
system block to 16 KB and
enable the data
compression function by
default. If you choose
Advanced > Tuning and
disable the data
compression function, the
system will set the size of
a file system block to 8
KB. In this scenario, you
are advised to enable the
data compression function.
– When storage pools to
which file systems belong
do not use full-SSDs, the
system will set the size of
a file system block to 8
KB and disable the data
compression function by
default. If you choose
Advanced > Tuning and
disable the data
compression function, the
system will still set the
size of a file system block
to 8 KB. In this scenario,
you are advised not to
enable the data
compression function.
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4 Configuration
Value
[Value range]
The value can be VM, Database,
or User-defined.
[Example]
User-defined
98