Parameter
Description
Value
Snapshot
Directory
Visibility
Specifies whether snapshot directories
are visible.
[Value range]
The value can be
Visible
or
Invisible
.
[Example]
Visible
[Default]
Visible
Max. Number
of Timing
Snapshots
Upper limit of the file system timing
snapshots. When the number of created
snapshots reaches the upper limit, the
system automatically deletes the earliest
timing snapshots.
[Value range]
The value is an integer
ranging from 1 to 2048.
[Example]
16
[Default]
16
Delete
Obsolete
Read-Only
Snapshots
Specifies whether
Delete Obsolete
Read-Only Snapshots
is enabled.
When used space of a file system
reaches the Capacity alarm threshold
and used space of snapshots is larger
than reserved space for snapshots, the
system automatically deletes the earliest
read-only snapshots.
[Example]
Enable
[Default]
Disable
Checksum
Specifies whether
Checksum
is
enabled. This function is used to check
data integrity. When it is enabled,
checksum will be automatically
calculated when data is being written,
ensuring integrity of the data to be
accessed.
NOTE
Enabling
Checksum
will impair the system
performance.
[Example]
Enable
[Default]
Enable
Automatic
Update of
Atime
Specifies whether
Automatic Update
of Atime
is enabled. Atime is a time
when file systems are accessed. After
this function is enabled, Atime will be
updated every time data on file systems
is accessed.
NOTE
Enabling
Automatic Update of Atime
will
impair the system performance.
[Example]
Enable
[Default]
Disable
OceanStor V3 Series
HyperMetro Feature Guide for File
4 Configuration
Issue 05 (2018-01-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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