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new e2d1abda Remove SpaceTL deletion pages (#1200)
e2d1abda is described below
commit e2d1abdaf5e7dd549001d3a09a7f89859f6b14b3
Author: leto-bbq <[email protected]>
AuthorDate: Mon Aug 24 09:57:39 2026 +0800
Remove SpaceTL deletion pages (#1200)
---
.../Master/Table/Basic-Concept/SpaceTL-Delete.md | 89 ----------------------
.../Master/Tree/Basic-Concept/SpaceTL-Delete.md | 89 ----------------------
.../V1.3.x/Basic-Concept/SpaceTL-Delete.md | 89 ----------------------
.../dev-1.3/Basic-Concept/SpaceTL-Delete.md | 89 ----------------------
.../latest-Table/Basic-Concept/SpaceTL-Delete.md | 89 ----------------------
.../latest/Basic-Concept/SpaceTL-Delete.md | 89 ----------------------
.../Master/Table/Basic-Concept/SpaceTL-Delete.md | 89 ----------------------
.../Master/Tree/Basic-Concept/SpaceTL-Delete.md | 89 ----------------------
.../V1.3.x/Basic-Concept/SpaceTL-Delete.md | 89 ----------------------
.../dev-1.3/Basic-Concept/SpaceTL-Delete.md | 89 ----------------------
.../latest-Table/Basic-Concept/SpaceTL-Delete.md | 89 ----------------------
.../latest/Basic-Concept/SpaceTL-Delete.md | 89 ----------------------
12 files changed, 1068 deletions(-)
diff --git a/src/UserGuide/Master/Table/Basic-Concept/SpaceTL-Delete.md
b/src/UserGuide/Master/Table/Basic-Concept/SpaceTL-Delete.md
deleted file mode 100644
index 1a16a9c8..00000000
--- a/src/UserGuide/Master/Table/Basic-Concept/SpaceTL-Delete.md
+++ /dev/null
@@ -1,89 +0,0 @@
-<!--
-
- Licensed to the Apache Software Foundation (ASF) under one
- or more contributor license agreements. See the NOTICE file
- distributed with this work for additional information
- regarding copyright ownership. The ASF licenses this file
- to you under the Apache License, Version 2.0 (the
- "License"); you may not use this file except in compliance
- with the License. You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing,
- software distributed under the License is distributed on an
- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- KIND, either express or implied. See the License for the
- specific language governing permissions and limitations
- under the License.
-
--->
-
-# SpaceTL Delete
-
-## 1. Overview
-
-IoTDB supports configuring the SpaceTL deletion policy through parameters:
when the storage space of the last-level storage tier (object storage space is
considered unlimited) is insufficient, users can choose whether to trigger the
SpaceTL deletion mechanism to free up space.
-
-Note: This mechanism only deletes files in the last storage tier.
-
-## 2. Parameter Introduction
-
-| Parameter Name | Description
| Default Value | Effective Mode |
-| --------------------------- |
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| --------------- | ---------------- |
-| `dn_tier_full_policy` | Behavior policy when the storage space of the
last-level storage tier is insufficient. Configurable options:1. NULL: Take no
action.2. DELETE: Enable SpaceTL data deletion. | NULL | Hot Reload
|
-
-Parameter Explanation:
-
-* If the last-level storage tier includes object storage, SpaceTL will not be
triggered.
-* This parameter works in conjunction with the
`dn_default_space_usage_thresholds`parameter. SpaceTL is triggered when the
available space of the last-level storage tier falls below the
`space_usage_thresholds`. By default, deletion begins when disk space usage
reaches 85% and continues until usage drops below 85%.
-
-## 3. Usage Example
-
-In a three-tier storage setup, when the storage space of the last tier reaches
85%, the SpaceTL deletion mechanism is triggered to start deleting files.
-
-```Properties
-# data dirs
-# If this property is unset, system will save the data in the default relative
path directory under the IoTDB folder(i.e., %IOTDB_HOME%/data/datanode/data).
-# If it is absolute, system will save the data in exact location it points to.
-# If it is relative, system will save the data in the relative path directory
it indicates under the IoTDB folder.
-# If there are more than one directory, please separate them by commas ",".
-# If tiered storage is enabled, please separate directories of different tiers
by semicolons ";".
-# Use keyword OBJECT_STORAGE to denote object storage media, object storage
can only exist on the last tier and must have local dirs in the front tiers.
-# Note: If data_dirs is assigned an empty string(i.e.,zero-size), it will be
handled as a relative path.
-# effectiveMode: hot_reload
-# For windows platform
-# If its prefix is a drive specifier followed by "\\", or if its prefix is
"\\\\", then the path is absolute. Otherwise, it is relative.
-# dn_data_dirs=data\\datanode\\data
-# For Linux platform
-# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
-dn_data_dirs=/data1/data;/data2/data,/data3/data;/data4/data
-
-# Default tier TTL. When the survival time of the data exceeds the threshold,
it will be migrated to the next tier.
-# Negative value means the tier TTL is unlimited.
-# effectiveMode: restart
-# Datatype: long
-# Unit: ms
-tier_ttl_in_ms=86400000;864000000;-1
-
-# Disk usage threshold, data will be moved to the next tier when the usage of
the tier is higher than this threshold.
-# If tiered storage is enabled, please separate thresholds of different tiers
by semicolons ";".
-# effectiveMode: hot_reload
-# Datatype: double(percentage)
-dn_default_space_usage_thresholds=0.75;0.8;0.85
-
-# How to deal with the last tier?s data when its used space has been higher
than its dn_default_space_usage_thresholds.
-# The info of the two policies are as follows:
-# effectiveMode: hot_reload
-# 1. NULL: do nothing.
-# 2. DELETE: delete the oldest data.
-dn_tier_full_policy=DELETE
-```
-
-In this example, three tiers of storage are configured as follows:
-
-| Tier Level | Storage Directories | Data Retention Time
| Disk Storage Space Threshold
|
-| ------------ | ------------------------------- |
----------------------------------------------------- |
-----------------------------------------------------------------------------------------
|
-| Tier 1 | `/data1/data` | Retained for 1 day; exceeded data
moves to Tier 2 | Data moves to Tier 2 when disk usage reaches 75%
|
-| Tier 2 | `/data2/data,/data3/data` | Retained for 10 days; exceeded data
moves to Tier 3 | Data moves to Tier 3 when disk usage reaches 80%
|
-| Tier 3 | `/data4/data` | No expiration time; data is stored
indefinitely | Deletes some files when disk usage reaches 85% (due
to`dn_tier_full_policy=DELETE`) |
diff --git a/src/UserGuide/Master/Tree/Basic-Concept/SpaceTL-Delete.md
b/src/UserGuide/Master/Tree/Basic-Concept/SpaceTL-Delete.md
deleted file mode 100644
index 1a16a9c8..00000000
--- a/src/UserGuide/Master/Tree/Basic-Concept/SpaceTL-Delete.md
+++ /dev/null
@@ -1,89 +0,0 @@
-<!--
-
- Licensed to the Apache Software Foundation (ASF) under one
- or more contributor license agreements. See the NOTICE file
- distributed with this work for additional information
- regarding copyright ownership. The ASF licenses this file
- to you under the Apache License, Version 2.0 (the
- "License"); you may not use this file except in compliance
- with the License. You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing,
- software distributed under the License is distributed on an
- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- KIND, either express or implied. See the License for the
- specific language governing permissions and limitations
- under the License.
-
--->
-
-# SpaceTL Delete
-
-## 1. Overview
-
-IoTDB supports configuring the SpaceTL deletion policy through parameters:
when the storage space of the last-level storage tier (object storage space is
considered unlimited) is insufficient, users can choose whether to trigger the
SpaceTL deletion mechanism to free up space.
-
-Note: This mechanism only deletes files in the last storage tier.
-
-## 2. Parameter Introduction
-
-| Parameter Name | Description
| Default Value | Effective Mode |
-| --------------------------- |
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| --------------- | ---------------- |
-| `dn_tier_full_policy` | Behavior policy when the storage space of the
last-level storage tier is insufficient. Configurable options:1. NULL: Take no
action.2. DELETE: Enable SpaceTL data deletion. | NULL | Hot Reload
|
-
-Parameter Explanation:
-
-* If the last-level storage tier includes object storage, SpaceTL will not be
triggered.
-* This parameter works in conjunction with the
`dn_default_space_usage_thresholds`parameter. SpaceTL is triggered when the
available space of the last-level storage tier falls below the
`space_usage_thresholds`. By default, deletion begins when disk space usage
reaches 85% and continues until usage drops below 85%.
-
-## 3. Usage Example
-
-In a three-tier storage setup, when the storage space of the last tier reaches
85%, the SpaceTL deletion mechanism is triggered to start deleting files.
-
-```Properties
-# data dirs
-# If this property is unset, system will save the data in the default relative
path directory under the IoTDB folder(i.e., %IOTDB_HOME%/data/datanode/data).
-# If it is absolute, system will save the data in exact location it points to.
-# If it is relative, system will save the data in the relative path directory
it indicates under the IoTDB folder.
-# If there are more than one directory, please separate them by commas ",".
-# If tiered storage is enabled, please separate directories of different tiers
by semicolons ";".
-# Use keyword OBJECT_STORAGE to denote object storage media, object storage
can only exist on the last tier and must have local dirs in the front tiers.
-# Note: If data_dirs is assigned an empty string(i.e.,zero-size), it will be
handled as a relative path.
-# effectiveMode: hot_reload
-# For windows platform
-# If its prefix is a drive specifier followed by "\\", or if its prefix is
"\\\\", then the path is absolute. Otherwise, it is relative.
-# dn_data_dirs=data\\datanode\\data
-# For Linux platform
-# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
-dn_data_dirs=/data1/data;/data2/data,/data3/data;/data4/data
-
-# Default tier TTL. When the survival time of the data exceeds the threshold,
it will be migrated to the next tier.
-# Negative value means the tier TTL is unlimited.
-# effectiveMode: restart
-# Datatype: long
-# Unit: ms
-tier_ttl_in_ms=86400000;864000000;-1
-
-# Disk usage threshold, data will be moved to the next tier when the usage of
the tier is higher than this threshold.
-# If tiered storage is enabled, please separate thresholds of different tiers
by semicolons ";".
-# effectiveMode: hot_reload
-# Datatype: double(percentage)
-dn_default_space_usage_thresholds=0.75;0.8;0.85
-
-# How to deal with the last tier?s data when its used space has been higher
than its dn_default_space_usage_thresholds.
-# The info of the two policies are as follows:
-# effectiveMode: hot_reload
-# 1. NULL: do nothing.
-# 2. DELETE: delete the oldest data.
-dn_tier_full_policy=DELETE
-```
-
-In this example, three tiers of storage are configured as follows:
-
-| Tier Level | Storage Directories | Data Retention Time
| Disk Storage Space Threshold
|
-| ------------ | ------------------------------- |
----------------------------------------------------- |
-----------------------------------------------------------------------------------------
|
-| Tier 1 | `/data1/data` | Retained for 1 day; exceeded data
moves to Tier 2 | Data moves to Tier 2 when disk usage reaches 75%
|
-| Tier 2 | `/data2/data,/data3/data` | Retained for 10 days; exceeded data
moves to Tier 3 | Data moves to Tier 3 when disk usage reaches 80%
|
-| Tier 3 | `/data4/data` | No expiration time; data is stored
indefinitely | Deletes some files when disk usage reaches 85% (due
to`dn_tier_full_policy=DELETE`) |
diff --git a/src/UserGuide/V1.3.x/Basic-Concept/SpaceTL-Delete.md
b/src/UserGuide/V1.3.x/Basic-Concept/SpaceTL-Delete.md
deleted file mode 100644
index c3e9a8ed..00000000
--- a/src/UserGuide/V1.3.x/Basic-Concept/SpaceTL-Delete.md
+++ /dev/null
@@ -1,89 +0,0 @@
-<!--
-
- Licensed to the Apache Software Foundation (ASF) under one
- or more contributor license agreements. See the NOTICE file
- distributed with this work for additional information
- regarding copyright ownership. The ASF licenses this file
- to you under the Apache License, Version 2.0 (the
- "License"); you may not use this file except in compliance
- with the License. You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing,
- software distributed under the License is distributed on an
- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- KIND, either express or implied. See the License for the
- specific language governing permissions and limitations
- under the License.
-
--->
-
-# SpaceTL Delete
-
-## 1. Overview
-
-IoTDB(V1.3.2+) supports configuring the SpaceTL deletion policy through
parameters: when the storage space of the last-level storage tier (object
storage space is considered unlimited) is insufficient, users can choose
whether to trigger the SpaceTL deletion mechanism to free up space.
-
-Note: This mechanism only deletes files in the last storage tier.
-
-## 2. Parameter Introduction
-
-| Parameter Name | Description
| Default Value | Effective Mode |
-| --------------------------- |
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| --------------- | ---------------- |
-| `dn_tier_full_policy` | Behavior policy when the storage space of the
last-level storage tier is insufficient. Configurable options:1. NULL: Take no
action.2. DELETE: Enable SpaceTL data deletion. | NULL | Hot Reload
|
-
-Parameter Explanation:
-
-* If the last-level storage tier includes object storage, SpaceTL will not be
triggered.
-* This parameter works in conjunction with the
`dn_default_space_usage_thresholds`parameter. SpaceTL is triggered when the
available space of the last-level storage tier falls below the
`space_usage_thresholds`. By default, deletion begins when disk space usage
reaches 85% and continues until usage drops below 85%.
-
-## 3. Usage Example
-
-In a three-tier storage setup, when the storage space of the last tier reaches
85%, the SpaceTL deletion mechanism is triggered to start deleting files.
-
-```Properties
-# data dirs
-# If this property is unset, system will save the data in the default relative
path directory under the IoTDB folder(i.e., %IOTDB_HOME%/data/datanode/data).
-# If it is absolute, system will save the data in exact location it points to.
-# If it is relative, system will save the data in the relative path directory
it indicates under the IoTDB folder.
-# If there are more than one directory, please separate them by commas ",".
-# If tiered storage is enabled, please separate directories of different tiers
by semicolons ";".
-# Use keyword OBJECT_STORAGE to denote object storage media, object storage
can only exist on the last tier and must have local dirs in the front tiers.
-# Note: If data_dirs is assigned an empty string(i.e.,zero-size), it will be
handled as a relative path.
-# effectiveMode: hot_reload
-# For windows platform
-# If its prefix is a drive specifier followed by "\\", or if its prefix is
"\\\\", then the path is absolute. Otherwise, it is relative.
-# dn_data_dirs=data\\datanode\\data
-# For Linux platform
-# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
-dn_data_dirs=/data1/data;/data2/data,/data3/data;/data4/data
-
-# Default tier TTL. When the survival time of the data exceeds the threshold,
it will be migrated to the next tier.
-# Negative value means the tier TTL is unlimited.
-# effectiveMode: restart
-# Datatype: long
-# Unit: ms
-tier_ttl_in_ms=86400000;864000000;-1
-
-# Disk usage threshold, data will be moved to the next tier when the usage of
the tier is higher than this threshold.
-# If tiered storage is enabled, please separate thresholds of different tiers
by semicolons ";".
-# effectiveMode: hot_reload
-# Datatype: double(percentage)
-dn_default_space_usage_thresholds=0.75;0.8;0.85
-
-# How to deal with the last tier?s data when its used space has been higher
than its dn_default_space_usage_thresholds.
-# The info of the two policies are as follows:
-# effectiveMode: hot_reload
-# 1. NULL: do nothing.
-# 2. DELETE: delete the oldest data.
-dn_tier_full_policy=DELETE
-```
-
-In this example, three tiers of storage are configured as follows:
-
-| Tier Level | Storage Directories | Data Retention Time
| Disk Storage Space Threshold
|
-| ------------ | ------------------------------- |
----------------------------------------------------- |
-----------------------------------------------------------------------------------------
|
-| Tier 1 | `/data1/data` | Retained for 1 day; exceeded data
moves to Tier 2 | Data moves to Tier 2 when disk usage reaches 75%
|
-| Tier 2 | `/data2/data,/data3/data` | Retained for 10 days; exceeded data
moves to Tier 3 | Data moves to Tier 3 when disk usage reaches 80%
|
-| Tier 3 | `/data4/data` | No expiration time; data is stored
indefinitely | Deletes some files when disk usage reaches 85% (due
to`dn_tier_full_policy=DELETE`) |
diff --git a/src/UserGuide/dev-1.3/Basic-Concept/SpaceTL-Delete.md
b/src/UserGuide/dev-1.3/Basic-Concept/SpaceTL-Delete.md
deleted file mode 100644
index c3e9a8ed..00000000
--- a/src/UserGuide/dev-1.3/Basic-Concept/SpaceTL-Delete.md
+++ /dev/null
@@ -1,89 +0,0 @@
-<!--
-
- Licensed to the Apache Software Foundation (ASF) under one
- or more contributor license agreements. See the NOTICE file
- distributed with this work for additional information
- regarding copyright ownership. The ASF licenses this file
- to you under the Apache License, Version 2.0 (the
- "License"); you may not use this file except in compliance
- with the License. You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing,
- software distributed under the License is distributed on an
- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- KIND, either express or implied. See the License for the
- specific language governing permissions and limitations
- under the License.
-
--->
-
-# SpaceTL Delete
-
-## 1. Overview
-
-IoTDB(V1.3.2+) supports configuring the SpaceTL deletion policy through
parameters: when the storage space of the last-level storage tier (object
storage space is considered unlimited) is insufficient, users can choose
whether to trigger the SpaceTL deletion mechanism to free up space.
-
-Note: This mechanism only deletes files in the last storage tier.
-
-## 2. Parameter Introduction
-
-| Parameter Name | Description
| Default Value | Effective Mode |
-| --------------------------- |
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| --------------- | ---------------- |
-| `dn_tier_full_policy` | Behavior policy when the storage space of the
last-level storage tier is insufficient. Configurable options:1. NULL: Take no
action.2. DELETE: Enable SpaceTL data deletion. | NULL | Hot Reload
|
-
-Parameter Explanation:
-
-* If the last-level storage tier includes object storage, SpaceTL will not be
triggered.
-* This parameter works in conjunction with the
`dn_default_space_usage_thresholds`parameter. SpaceTL is triggered when the
available space of the last-level storage tier falls below the
`space_usage_thresholds`. By default, deletion begins when disk space usage
reaches 85% and continues until usage drops below 85%.
-
-## 3. Usage Example
-
-In a three-tier storage setup, when the storage space of the last tier reaches
85%, the SpaceTL deletion mechanism is triggered to start deleting files.
-
-```Properties
-# data dirs
-# If this property is unset, system will save the data in the default relative
path directory under the IoTDB folder(i.e., %IOTDB_HOME%/data/datanode/data).
-# If it is absolute, system will save the data in exact location it points to.
-# If it is relative, system will save the data in the relative path directory
it indicates under the IoTDB folder.
-# If there are more than one directory, please separate them by commas ",".
-# If tiered storage is enabled, please separate directories of different tiers
by semicolons ";".
-# Use keyword OBJECT_STORAGE to denote object storage media, object storage
can only exist on the last tier and must have local dirs in the front tiers.
-# Note: If data_dirs is assigned an empty string(i.e.,zero-size), it will be
handled as a relative path.
-# effectiveMode: hot_reload
-# For windows platform
-# If its prefix is a drive specifier followed by "\\", or if its prefix is
"\\\\", then the path is absolute. Otherwise, it is relative.
-# dn_data_dirs=data\\datanode\\data
-# For Linux platform
-# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
-dn_data_dirs=/data1/data;/data2/data,/data3/data;/data4/data
-
-# Default tier TTL. When the survival time of the data exceeds the threshold,
it will be migrated to the next tier.
-# Negative value means the tier TTL is unlimited.
-# effectiveMode: restart
-# Datatype: long
-# Unit: ms
-tier_ttl_in_ms=86400000;864000000;-1
-
-# Disk usage threshold, data will be moved to the next tier when the usage of
the tier is higher than this threshold.
-# If tiered storage is enabled, please separate thresholds of different tiers
by semicolons ";".
-# effectiveMode: hot_reload
-# Datatype: double(percentage)
-dn_default_space_usage_thresholds=0.75;0.8;0.85
-
-# How to deal with the last tier?s data when its used space has been higher
than its dn_default_space_usage_thresholds.
-# The info of the two policies are as follows:
-# effectiveMode: hot_reload
-# 1. NULL: do nothing.
-# 2. DELETE: delete the oldest data.
-dn_tier_full_policy=DELETE
-```
-
-In this example, three tiers of storage are configured as follows:
-
-| Tier Level | Storage Directories | Data Retention Time
| Disk Storage Space Threshold
|
-| ------------ | ------------------------------- |
----------------------------------------------------- |
-----------------------------------------------------------------------------------------
|
-| Tier 1 | `/data1/data` | Retained for 1 day; exceeded data
moves to Tier 2 | Data moves to Tier 2 when disk usage reaches 75%
|
-| Tier 2 | `/data2/data,/data3/data` | Retained for 10 days; exceeded data
moves to Tier 3 | Data moves to Tier 3 when disk usage reaches 80%
|
-| Tier 3 | `/data4/data` | No expiration time; data is stored
indefinitely | Deletes some files when disk usage reaches 85% (due
to`dn_tier_full_policy=DELETE`) |
diff --git a/src/UserGuide/latest-Table/Basic-Concept/SpaceTL-Delete.md
b/src/UserGuide/latest-Table/Basic-Concept/SpaceTL-Delete.md
deleted file mode 100644
index 1a16a9c8..00000000
--- a/src/UserGuide/latest-Table/Basic-Concept/SpaceTL-Delete.md
+++ /dev/null
@@ -1,89 +0,0 @@
-<!--
-
- Licensed to the Apache Software Foundation (ASF) under one
- or more contributor license agreements. See the NOTICE file
- distributed with this work for additional information
- regarding copyright ownership. The ASF licenses this file
- to you under the Apache License, Version 2.0 (the
- "License"); you may not use this file except in compliance
- with the License. You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing,
- software distributed under the License is distributed on an
- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- KIND, either express or implied. See the License for the
- specific language governing permissions and limitations
- under the License.
-
--->
-
-# SpaceTL Delete
-
-## 1. Overview
-
-IoTDB supports configuring the SpaceTL deletion policy through parameters:
when the storage space of the last-level storage tier (object storage space is
considered unlimited) is insufficient, users can choose whether to trigger the
SpaceTL deletion mechanism to free up space.
-
-Note: This mechanism only deletes files in the last storage tier.
-
-## 2. Parameter Introduction
-
-| Parameter Name | Description
| Default Value | Effective Mode |
-| --------------------------- |
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| --------------- | ---------------- |
-| `dn_tier_full_policy` | Behavior policy when the storage space of the
last-level storage tier is insufficient. Configurable options:1. NULL: Take no
action.2. DELETE: Enable SpaceTL data deletion. | NULL | Hot Reload
|
-
-Parameter Explanation:
-
-* If the last-level storage tier includes object storage, SpaceTL will not be
triggered.
-* This parameter works in conjunction with the
`dn_default_space_usage_thresholds`parameter. SpaceTL is triggered when the
available space of the last-level storage tier falls below the
`space_usage_thresholds`. By default, deletion begins when disk space usage
reaches 85% and continues until usage drops below 85%.
-
-## 3. Usage Example
-
-In a three-tier storage setup, when the storage space of the last tier reaches
85%, the SpaceTL deletion mechanism is triggered to start deleting files.
-
-```Properties
-# data dirs
-# If this property is unset, system will save the data in the default relative
path directory under the IoTDB folder(i.e., %IOTDB_HOME%/data/datanode/data).
-# If it is absolute, system will save the data in exact location it points to.
-# If it is relative, system will save the data in the relative path directory
it indicates under the IoTDB folder.
-# If there are more than one directory, please separate them by commas ",".
-# If tiered storage is enabled, please separate directories of different tiers
by semicolons ";".
-# Use keyword OBJECT_STORAGE to denote object storage media, object storage
can only exist on the last tier and must have local dirs in the front tiers.
-# Note: If data_dirs is assigned an empty string(i.e.,zero-size), it will be
handled as a relative path.
-# effectiveMode: hot_reload
-# For windows platform
-# If its prefix is a drive specifier followed by "\\", or if its prefix is
"\\\\", then the path is absolute. Otherwise, it is relative.
-# dn_data_dirs=data\\datanode\\data
-# For Linux platform
-# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
-dn_data_dirs=/data1/data;/data2/data,/data3/data;/data4/data
-
-# Default tier TTL. When the survival time of the data exceeds the threshold,
it will be migrated to the next tier.
-# Negative value means the tier TTL is unlimited.
-# effectiveMode: restart
-# Datatype: long
-# Unit: ms
-tier_ttl_in_ms=86400000;864000000;-1
-
-# Disk usage threshold, data will be moved to the next tier when the usage of
the tier is higher than this threshold.
-# If tiered storage is enabled, please separate thresholds of different tiers
by semicolons ";".
-# effectiveMode: hot_reload
-# Datatype: double(percentage)
-dn_default_space_usage_thresholds=0.75;0.8;0.85
-
-# How to deal with the last tier?s data when its used space has been higher
than its dn_default_space_usage_thresholds.
-# The info of the two policies are as follows:
-# effectiveMode: hot_reload
-# 1. NULL: do nothing.
-# 2. DELETE: delete the oldest data.
-dn_tier_full_policy=DELETE
-```
-
-In this example, three tiers of storage are configured as follows:
-
-| Tier Level | Storage Directories | Data Retention Time
| Disk Storage Space Threshold
|
-| ------------ | ------------------------------- |
----------------------------------------------------- |
-----------------------------------------------------------------------------------------
|
-| Tier 1 | `/data1/data` | Retained for 1 day; exceeded data
moves to Tier 2 | Data moves to Tier 2 when disk usage reaches 75%
|
-| Tier 2 | `/data2/data,/data3/data` | Retained for 10 days; exceeded data
moves to Tier 3 | Data moves to Tier 3 when disk usage reaches 80%
|
-| Tier 3 | `/data4/data` | No expiration time; data is stored
indefinitely | Deletes some files when disk usage reaches 85% (due
to`dn_tier_full_policy=DELETE`) |
diff --git a/src/UserGuide/latest/Basic-Concept/SpaceTL-Delete.md
b/src/UserGuide/latest/Basic-Concept/SpaceTL-Delete.md
deleted file mode 100644
index 1a16a9c8..00000000
--- a/src/UserGuide/latest/Basic-Concept/SpaceTL-Delete.md
+++ /dev/null
@@ -1,89 +0,0 @@
-<!--
-
- Licensed to the Apache Software Foundation (ASF) under one
- or more contributor license agreements. See the NOTICE file
- distributed with this work for additional information
- regarding copyright ownership. The ASF licenses this file
- to you under the Apache License, Version 2.0 (the
- "License"); you may not use this file except in compliance
- with the License. You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing,
- software distributed under the License is distributed on an
- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- KIND, either express or implied. See the License for the
- specific language governing permissions and limitations
- under the License.
-
--->
-
-# SpaceTL Delete
-
-## 1. Overview
-
-IoTDB supports configuring the SpaceTL deletion policy through parameters:
when the storage space of the last-level storage tier (object storage space is
considered unlimited) is insufficient, users can choose whether to trigger the
SpaceTL deletion mechanism to free up space.
-
-Note: This mechanism only deletes files in the last storage tier.
-
-## 2. Parameter Introduction
-
-| Parameter Name | Description
| Default Value | Effective Mode |
-| --------------------------- |
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| --------------- | ---------------- |
-| `dn_tier_full_policy` | Behavior policy when the storage space of the
last-level storage tier is insufficient. Configurable options:1. NULL: Take no
action.2. DELETE: Enable SpaceTL data deletion. | NULL | Hot Reload
|
-
-Parameter Explanation:
-
-* If the last-level storage tier includes object storage, SpaceTL will not be
triggered.
-* This parameter works in conjunction with the
`dn_default_space_usage_thresholds`parameter. SpaceTL is triggered when the
available space of the last-level storage tier falls below the
`space_usage_thresholds`. By default, deletion begins when disk space usage
reaches 85% and continues until usage drops below 85%.
-
-## 3. Usage Example
-
-In a three-tier storage setup, when the storage space of the last tier reaches
85%, the SpaceTL deletion mechanism is triggered to start deleting files.
-
-```Properties
-# data dirs
-# If this property is unset, system will save the data in the default relative
path directory under the IoTDB folder(i.e., %IOTDB_HOME%/data/datanode/data).
-# If it is absolute, system will save the data in exact location it points to.
-# If it is relative, system will save the data in the relative path directory
it indicates under the IoTDB folder.
-# If there are more than one directory, please separate them by commas ",".
-# If tiered storage is enabled, please separate directories of different tiers
by semicolons ";".
-# Use keyword OBJECT_STORAGE to denote object storage media, object storage
can only exist on the last tier and must have local dirs in the front tiers.
-# Note: If data_dirs is assigned an empty string(i.e.,zero-size), it will be
handled as a relative path.
-# effectiveMode: hot_reload
-# For windows platform
-# If its prefix is a drive specifier followed by "\\", or if its prefix is
"\\\\", then the path is absolute. Otherwise, it is relative.
-# dn_data_dirs=data\\datanode\\data
-# For Linux platform
-# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
-dn_data_dirs=/data1/data;/data2/data,/data3/data;/data4/data
-
-# Default tier TTL. When the survival time of the data exceeds the threshold,
it will be migrated to the next tier.
-# Negative value means the tier TTL is unlimited.
-# effectiveMode: restart
-# Datatype: long
-# Unit: ms
-tier_ttl_in_ms=86400000;864000000;-1
-
-# Disk usage threshold, data will be moved to the next tier when the usage of
the tier is higher than this threshold.
-# If tiered storage is enabled, please separate thresholds of different tiers
by semicolons ";".
-# effectiveMode: hot_reload
-# Datatype: double(percentage)
-dn_default_space_usage_thresholds=0.75;0.8;0.85
-
-# How to deal with the last tier?s data when its used space has been higher
than its dn_default_space_usage_thresholds.
-# The info of the two policies are as follows:
-# effectiveMode: hot_reload
-# 1. NULL: do nothing.
-# 2. DELETE: delete the oldest data.
-dn_tier_full_policy=DELETE
-```
-
-In this example, three tiers of storage are configured as follows:
-
-| Tier Level | Storage Directories | Data Retention Time
| Disk Storage Space Threshold
|
-| ------------ | ------------------------------- |
----------------------------------------------------- |
-----------------------------------------------------------------------------------------
|
-| Tier 1 | `/data1/data` | Retained for 1 day; exceeded data
moves to Tier 2 | Data moves to Tier 2 when disk usage reaches 75%
|
-| Tier 2 | `/data2/data,/data3/data` | Retained for 10 days; exceeded data
moves to Tier 3 | Data moves to Tier 3 when disk usage reaches 80%
|
-| Tier 3 | `/data4/data` | No expiration time; data is stored
indefinitely | Deletes some files when disk usage reaches 85% (due
to`dn_tier_full_policy=DELETE`) |
diff --git a/src/zh/UserGuide/Master/Table/Basic-Concept/SpaceTL-Delete.md
b/src/zh/UserGuide/Master/Table/Basic-Concept/SpaceTL-Delete.md
deleted file mode 100644
index 62b7a565..00000000
--- a/src/zh/UserGuide/Master/Table/Basic-Concept/SpaceTL-Delete.md
+++ /dev/null
@@ -1,89 +0,0 @@
-<!--
-
- Licensed to the Apache Software Foundation (ASF) under one
- or more contributor license agreements. See the NOTICE file
- distributed with this work for additional information
- regarding copyright ownership. The ASF licenses this file
- to you under the Apache License, Version 2.0 (the
- "License"); you may not use this file except in compliance
- with the License. You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing,
- software distributed under the License is distributed on an
- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- KIND, either express or implied. See the License for the
- specific language governing permissions and limitations
- under the License.
-
--->
-
-# SpaceTL 删除
-
-## 1. 概述
-
-IoTDB 支持通过参数配置 SpaceTL 删除策略：即当最后一级存储层（对象存储空间被视为无限）的存储空间不足时，可选择是否触发 SpaceTL
删除机制以释放空间。
-
-注意：该机制仅会删除最后一个存储层中的文件。
-
-## 2. 参数介绍
-
-| 参数名 | 描述
| 默认值 | 生效方式 |
-| ------------------------ |
---------------------------------------------------------------------------------------------------------
| -------- | ---------- |
-| dn\_tier\_full\_policy | 最后一级存储层存储空间不足时的行为策略。可配置：1. NULL：不做任何处理1. DELETE：开启
SpaceTL 删除数据。 | NULL | 热加载 |
-
-参数说明：
-
-* 若最后一级存储层包含**对象存储**则不触发 SpaceTL
-* 该参数和 dn\_default\_space\_usage\_thresholds 参数联动，当最后一级存储层的可用空间低于
space\_usage\_thresholds 时触发 SpaceTL；默认当磁盘空间占用到达 85% 的时候开始删除直至空间占用降到 85% 以下才会停止
-
-## 3. 使用示例
-
-以三级存储为例，当最后一级存储空间到达85%时，触发 SpaceTL 删除机制开始删除文件。
-
-```Properties
-# data dirs
-# If this property is unset, system will save the data in the default relative
path directory under the IoTDB folder(i.e., %IOTDB_HOME%/data/datanode/data).
-# If it is absolute, system will save the data in exact location it points to.
-# If it is relative, system will save the data in the relative path directory
it indicates under the IoTDB folder.
-# If there are more than one directory, please separate them by commas ",".
-# If tiered storage is enabled, please separate directories of different tiers
by semicolons ";".
-# Use keyword OBJECT_STORAGE to denote object storage media, object storage
can only exist on the last tier and must have local dirs in the front tiers.
-# Note: If data_dirs is assigned an empty string(i.e.,zero-size), it will be
handled as a relative path.
-# effectiveMode: hot_reload
-# For windows platform
-# If its prefix is a drive specifier followed by "\\", or if its prefix is
"\\\\", then the path is absolute. Otherwise, it is relative.
-# dn_data_dirs=data\\datanode\\data
-# For Linux platform
-# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
-dn_data_dirs=/data1/data;/data2/data,/data3/data;/data4/data
-
-# Default tier TTL. When the survival time of the data exceeds the threshold,
it will be migrated to the next tier.
-# Negative value means the tier TTL is unlimited.
-# effectiveMode: restart
-# Datatype: long
-# Unit: ms
-tier_ttl_in_ms=86400000;864000000;-1
-
-# Disk usage threshold, data will be moved to the next tier when the usage of
the tier is higher than this threshold.
-# If tiered storage is enabled, please separate thresholds of different tiers
by semicolons ";".
-# effectiveMode: hot_reload
-# Datatype: double(percentage)
-dn_default_space_usage_thresholds=0.75;0.8;0.85
-
-# How to deal with the last tier?s data when its used space has been higher
than its dn_default_space_usage_thresholds.
-# The info of the two policies are as follows:
-# effectiveMode: hot_reload
-# 1. NULL: do nothing.
-# 2. DELETE: delete the oldest data.
-dn_tier_full_policy=DELETE
-```
-
-在该示例中，共配置了三个层级的存储，具体为：
-
-| 层级 | 存储目录 | 数据保留时间 | 磁盘存储空间阈值
|
-| -------- | ------------------------- | ----------------------------------- |
------------------------------------------------------------------ |
-| 层级一 | /data1/data | 只保留 1 天，超过后会移动到第二级 | 磁盘达到 75% 会移动部分文件到第二级
|
-| 层级二 | /data2/data,/data3/data | 只保留 10 天，超过后到第三级 | 磁盘达到 80% 会移动部分文件到第三级
|
-| 层级三 | /data4/data | 没有过期时间，会一直存储 | 磁盘达到 85%
会删除部分文件（因为dn\_tier\_full\_policy=DELETE） |
diff --git a/src/zh/UserGuide/Master/Tree/Basic-Concept/SpaceTL-Delete.md
b/src/zh/UserGuide/Master/Tree/Basic-Concept/SpaceTL-Delete.md
deleted file mode 100644
index 62b7a565..00000000
--- a/src/zh/UserGuide/Master/Tree/Basic-Concept/SpaceTL-Delete.md
+++ /dev/null
@@ -1,89 +0,0 @@
-<!--
-
- Licensed to the Apache Software Foundation (ASF) under one
- or more contributor license agreements. See the NOTICE file
- distributed with this work for additional information
- regarding copyright ownership. The ASF licenses this file
- to you under the Apache License, Version 2.0 (the
- "License"); you may not use this file except in compliance
- with the License. You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing,
- software distributed under the License is distributed on an
- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- KIND, either express or implied. See the License for the
- specific language governing permissions and limitations
- under the License.
-
--->
-
-# SpaceTL 删除
-
-## 1. 概述
-
-IoTDB 支持通过参数配置 SpaceTL 删除策略：即当最后一级存储层（对象存储空间被视为无限）的存储空间不足时，可选择是否触发 SpaceTL
删除机制以释放空间。
-
-注意：该机制仅会删除最后一个存储层中的文件。
-
-## 2. 参数介绍
-
-| 参数名 | 描述
| 默认值 | 生效方式 |
-| ------------------------ |
---------------------------------------------------------------------------------------------------------
| -------- | ---------- |
-| dn\_tier\_full\_policy | 最后一级存储层存储空间不足时的行为策略。可配置：1. NULL：不做任何处理1. DELETE：开启
SpaceTL 删除数据。 | NULL | 热加载 |
-
-参数说明：
-
-* 若最后一级存储层包含**对象存储**则不触发 SpaceTL
-* 该参数和 dn\_default\_space\_usage\_thresholds 参数联动，当最后一级存储层的可用空间低于
space\_usage\_thresholds 时触发 SpaceTL；默认当磁盘空间占用到达 85% 的时候开始删除直至空间占用降到 85% 以下才会停止
-
-## 3. 使用示例
-
-以三级存储为例，当最后一级存储空间到达85%时，触发 SpaceTL 删除机制开始删除文件。
-
-```Properties
-# data dirs
-# If this property is unset, system will save the data in the default relative
path directory under the IoTDB folder(i.e., %IOTDB_HOME%/data/datanode/data).
-# If it is absolute, system will save the data in exact location it points to.
-# If it is relative, system will save the data in the relative path directory
it indicates under the IoTDB folder.
-# If there are more than one directory, please separate them by commas ",".
-# If tiered storage is enabled, please separate directories of different tiers
by semicolons ";".
-# Use keyword OBJECT_STORAGE to denote object storage media, object storage
can only exist on the last tier and must have local dirs in the front tiers.
-# Note: If data_dirs is assigned an empty string(i.e.,zero-size), it will be
handled as a relative path.
-# effectiveMode: hot_reload
-# For windows platform
-# If its prefix is a drive specifier followed by "\\", or if its prefix is
"\\\\", then the path is absolute. Otherwise, it is relative.
-# dn_data_dirs=data\\datanode\\data
-# For Linux platform
-# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
-dn_data_dirs=/data1/data;/data2/data,/data3/data;/data4/data
-
-# Default tier TTL. When the survival time of the data exceeds the threshold,
it will be migrated to the next tier.
-# Negative value means the tier TTL is unlimited.
-# effectiveMode: restart
-# Datatype: long
-# Unit: ms
-tier_ttl_in_ms=86400000;864000000;-1
-
-# Disk usage threshold, data will be moved to the next tier when the usage of
the tier is higher than this threshold.
-# If tiered storage is enabled, please separate thresholds of different tiers
by semicolons ";".
-# effectiveMode: hot_reload
-# Datatype: double(percentage)
-dn_default_space_usage_thresholds=0.75;0.8;0.85
-
-# How to deal with the last tier?s data when its used space has been higher
than its dn_default_space_usage_thresholds.
-# The info of the two policies are as follows:
-# effectiveMode: hot_reload
-# 1. NULL: do nothing.
-# 2. DELETE: delete the oldest data.
-dn_tier_full_policy=DELETE
-```
-
-在该示例中，共配置了三个层级的存储，具体为：
-
-| 层级 | 存储目录 | 数据保留时间 | 磁盘存储空间阈值
|
-| -------- | ------------------------- | ----------------------------------- |
------------------------------------------------------------------ |
-| 层级一 | /data1/data | 只保留 1 天，超过后会移动到第二级 | 磁盘达到 75% 会移动部分文件到第二级
|
-| 层级二 | /data2/data,/data3/data | 只保留 10 天，超过后到第三级 | 磁盘达到 80% 会移动部分文件到第三级
|
-| 层级三 | /data4/data | 没有过期时间，会一直存储 | 磁盘达到 85%
会删除部分文件（因为dn\_tier\_full\_policy=DELETE） |
diff --git a/src/zh/UserGuide/V1.3.x/Basic-Concept/SpaceTL-Delete.md
b/src/zh/UserGuide/V1.3.x/Basic-Concept/SpaceTL-Delete.md
deleted file mode 100644
index 2bcab3f3..00000000
--- a/src/zh/UserGuide/V1.3.x/Basic-Concept/SpaceTL-Delete.md
+++ /dev/null
@@ -1,89 +0,0 @@
-<!--
-
- Licensed to the Apache Software Foundation (ASF) under one
- or more contributor license agreements. See the NOTICE file
- distributed with this work for additional information
- regarding copyright ownership. The ASF licenses this file
- to you under the Apache License, Version 2.0 (the
- "License"); you may not use this file except in compliance
- with the License. You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing,
- software distributed under the License is distributed on an
- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- KIND, either express or implied. See the License for the
- specific language governing permissions and limitations
- under the License.
-
--->
-
-# SpaceTL 删除
-
-## 1. 概述
-
-IoTDB(V1.3.2+) 支持通过参数配置 SpaceTL 删除策略：即当最后一级存储层（对象存储空间被视为无限）的存储空间不足时，可选择是否触发
SpaceTL 删除机制以释放空间。
-
-注意：该机制仅会删除最后一个存储层中的文件。
-
-## 2. 参数介绍
-
-| 参数名 | 描述
| 默认值 | 生效方式 |
-| ------------------------ |
---------------------------------------------------------------------------------------------------------
| -------- | ---------- |
-| dn\_tier\_full\_policy | 最后一级存储层存储空间不足时的行为策略。可配置：1. NULL：不做任何处理1. DELETE：开启
SpaceTL 删除数据。 | NULL | 热加载 |
-
-参数说明：
-
-* 若最后一级存储层包含**对象存储**则不触发 SpaceTL
-* 该参数和 dn\_default\_space\_usage\_thresholds 参数联动，当最后一级存储层的可用空间低于
space\_usage\_thresholds 时触发 SpaceTL；默认当磁盘空间占用到达 85% 的时候开始删除直至空间占用降到 85% 以下才会停止
-
-## 3. 使用示例
-
-以三级存储为例，当最后一级存储空间到达85%时，触发 SpaceTL 删除机制开始删除文件。
-
-```Properties
-# data dirs
-# If this property is unset, system will save the data in the default relative
path directory under the IoTDB folder(i.e., %IOTDB_HOME%/data/datanode/data).
-# If it is absolute, system will save the data in exact location it points to.
-# If it is relative, system will save the data in the relative path directory
it indicates under the IoTDB folder.
-# If there are more than one directory, please separate them by commas ",".
-# If tiered storage is enabled, please separate directories of different tiers
by semicolons ";".
-# Use keyword OBJECT_STORAGE to denote object storage media, object storage
can only exist on the last tier and must have local dirs in the front tiers.
-# Note: If data_dirs is assigned an empty string(i.e.,zero-size), it will be
handled as a relative path.
-# effectiveMode: hot_reload
-# For windows platform
-# If its prefix is a drive specifier followed by "\\", or if its prefix is
"\\\\", then the path is absolute. Otherwise, it is relative.
-# dn_data_dirs=data\\datanode\\data
-# For Linux platform
-# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
-dn_data_dirs=/data1/data;/data2/data,/data3/data;/data4/data
-
-# Default tier TTL. When the survival time of the data exceeds the threshold,
it will be migrated to the next tier.
-# Negative value means the tier TTL is unlimited.
-# effectiveMode: restart
-# Datatype: long
-# Unit: ms
-tier_ttl_in_ms=86400000;864000000;-1
-
-# Disk usage threshold, data will be moved to the next tier when the usage of
the tier is higher than this threshold.
-# If tiered storage is enabled, please separate thresholds of different tiers
by semicolons ";".
-# effectiveMode: hot_reload
-# Datatype: double(percentage)
-dn_default_space_usage_thresholds=0.75;0.8;0.85
-
-# How to deal with the last tier?s data when its used space has been higher
than its dn_default_space_usage_thresholds.
-# The info of the two policies are as follows:
-# effectiveMode: hot_reload
-# 1. NULL: do nothing.
-# 2. DELETE: delete the oldest data.
-dn_tier_full_policy=DELETE
-```
-
-在该示例中，共配置了三个层级的存储，具体为：
-
-| 层级 | 存储目录 | 数据保留时间 | 磁盘存储空间阈值
|
-| -------- | ------------------------- | ----------------------------------- |
------------------------------------------------------------------ |
-| 层级一 | /data1/data | 只保留 1 天，超过后会移动到第二级 | 磁盘达到 75% 会移动部分文件到第二级
|
-| 层级二 | /data2/data,/data3/data | 只保留 10 天，超过后到第三级 | 磁盘达到 80% 会移动部分文件到第三级
|
-| 层级三 | /data4/data | 没有过期时间，会一直存储 | 磁盘达到 85%
会删除部分文件（因为dn\_tier\_full\_policy=DELETE） |
diff --git a/src/zh/UserGuide/dev-1.3/Basic-Concept/SpaceTL-Delete.md
b/src/zh/UserGuide/dev-1.3/Basic-Concept/SpaceTL-Delete.md
deleted file mode 100644
index 2bcab3f3..00000000
--- a/src/zh/UserGuide/dev-1.3/Basic-Concept/SpaceTL-Delete.md
+++ /dev/null
@@ -1,89 +0,0 @@
-<!--
-
- Licensed to the Apache Software Foundation (ASF) under one
- or more contributor license agreements. See the NOTICE file
- distributed with this work for additional information
- regarding copyright ownership. The ASF licenses this file
- to you under the Apache License, Version 2.0 (the
- "License"); you may not use this file except in compliance
- with the License. You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing,
- software distributed under the License is distributed on an
- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- KIND, either express or implied. See the License for the
- specific language governing permissions and limitations
- under the License.
-
--->
-
-# SpaceTL 删除
-
-## 1. 概述
-
-IoTDB(V1.3.2+) 支持通过参数配置 SpaceTL 删除策略：即当最后一级存储层（对象存储空间被视为无限）的存储空间不足时，可选择是否触发
SpaceTL 删除机制以释放空间。
-
-注意：该机制仅会删除最后一个存储层中的文件。
-
-## 2. 参数介绍
-
-| 参数名 | 描述
| 默认值 | 生效方式 |
-| ------------------------ |
---------------------------------------------------------------------------------------------------------
| -------- | ---------- |
-| dn\_tier\_full\_policy | 最后一级存储层存储空间不足时的行为策略。可配置：1. NULL：不做任何处理1. DELETE：开启
SpaceTL 删除数据。 | NULL | 热加载 |
-
-参数说明：
-
-* 若最后一级存储层包含**对象存储**则不触发 SpaceTL
-* 该参数和 dn\_default\_space\_usage\_thresholds 参数联动，当最后一级存储层的可用空间低于
space\_usage\_thresholds 时触发 SpaceTL；默认当磁盘空间占用到达 85% 的时候开始删除直至空间占用降到 85% 以下才会停止
-
-## 3. 使用示例
-
-以三级存储为例，当最后一级存储空间到达85%时，触发 SpaceTL 删除机制开始删除文件。
-
-```Properties
-# data dirs
-# If this property is unset, system will save the data in the default relative
path directory under the IoTDB folder(i.e., %IOTDB_HOME%/data/datanode/data).
-# If it is absolute, system will save the data in exact location it points to.
-# If it is relative, system will save the data in the relative path directory
it indicates under the IoTDB folder.
-# If there are more than one directory, please separate them by commas ",".
-# If tiered storage is enabled, please separate directories of different tiers
by semicolons ";".
-# Use keyword OBJECT_STORAGE to denote object storage media, object storage
can only exist on the last tier and must have local dirs in the front tiers.
-# Note: If data_dirs is assigned an empty string(i.e.,zero-size), it will be
handled as a relative path.
-# effectiveMode: hot_reload
-# For windows platform
-# If its prefix is a drive specifier followed by "\\", or if its prefix is
"\\\\", then the path is absolute. Otherwise, it is relative.
-# dn_data_dirs=data\\datanode\\data
-# For Linux platform
-# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
-dn_data_dirs=/data1/data;/data2/data,/data3/data;/data4/data
-
-# Default tier TTL. When the survival time of the data exceeds the threshold,
it will be migrated to the next tier.
-# Negative value means the tier TTL is unlimited.
-# effectiveMode: restart
-# Datatype: long
-# Unit: ms
-tier_ttl_in_ms=86400000;864000000;-1
-
-# Disk usage threshold, data will be moved to the next tier when the usage of
the tier is higher than this threshold.
-# If tiered storage is enabled, please separate thresholds of different tiers
by semicolons ";".
-# effectiveMode: hot_reload
-# Datatype: double(percentage)
-dn_default_space_usage_thresholds=0.75;0.8;0.85
-
-# How to deal with the last tier?s data when its used space has been higher
than its dn_default_space_usage_thresholds.
-# The info of the two policies are as follows:
-# effectiveMode: hot_reload
-# 1. NULL: do nothing.
-# 2. DELETE: delete the oldest data.
-dn_tier_full_policy=DELETE
-```
-
-在该示例中，共配置了三个层级的存储，具体为：
-
-| 层级 | 存储目录 | 数据保留时间 | 磁盘存储空间阈值
|
-| -------- | ------------------------- | ----------------------------------- |
------------------------------------------------------------------ |
-| 层级一 | /data1/data | 只保留 1 天，超过后会移动到第二级 | 磁盘达到 75% 会移动部分文件到第二级
|
-| 层级二 | /data2/data,/data3/data | 只保留 10 天，超过后到第三级 | 磁盘达到 80% 会移动部分文件到第三级
|
-| 层级三 | /data4/data | 没有过期时间，会一直存储 | 磁盘达到 85%
会删除部分文件（因为dn\_tier\_full\_policy=DELETE） |
diff --git a/src/zh/UserGuide/latest-Table/Basic-Concept/SpaceTL-Delete.md
b/src/zh/UserGuide/latest-Table/Basic-Concept/SpaceTL-Delete.md
deleted file mode 100644
index 62b7a565..00000000
--- a/src/zh/UserGuide/latest-Table/Basic-Concept/SpaceTL-Delete.md
+++ /dev/null
@@ -1,89 +0,0 @@
-<!--
-
- Licensed to the Apache Software Foundation (ASF) under one
- or more contributor license agreements. See the NOTICE file
- distributed with this work for additional information
- regarding copyright ownership. The ASF licenses this file
- to you under the Apache License, Version 2.0 (the
- "License"); you may not use this file except in compliance
- with the License. You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing,
- software distributed under the License is distributed on an
- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- KIND, either express or implied. See the License for the
- specific language governing permissions and limitations
- under the License.
-
--->
-
-# SpaceTL 删除
-
-## 1. 概述
-
-IoTDB 支持通过参数配置 SpaceTL 删除策略：即当最后一级存储层（对象存储空间被视为无限）的存储空间不足时，可选择是否触发 SpaceTL
删除机制以释放空间。
-
-注意：该机制仅会删除最后一个存储层中的文件。
-
-## 2. 参数介绍
-
-| 参数名 | 描述
| 默认值 | 生效方式 |
-| ------------------------ |
---------------------------------------------------------------------------------------------------------
| -------- | ---------- |
-| dn\_tier\_full\_policy | 最后一级存储层存储空间不足时的行为策略。可配置：1. NULL：不做任何处理1. DELETE：开启
SpaceTL 删除数据。 | NULL | 热加载 |
-
-参数说明：
-
-* 若最后一级存储层包含**对象存储**则不触发 SpaceTL
-* 该参数和 dn\_default\_space\_usage\_thresholds 参数联动，当最后一级存储层的可用空间低于
space\_usage\_thresholds 时触发 SpaceTL；默认当磁盘空间占用到达 85% 的时候开始删除直至空间占用降到 85% 以下才会停止
-
-## 3. 使用示例
-
-以三级存储为例，当最后一级存储空间到达85%时，触发 SpaceTL 删除机制开始删除文件。
-
-```Properties
-# data dirs
-# If this property is unset, system will save the data in the default relative
path directory under the IoTDB folder(i.e., %IOTDB_HOME%/data/datanode/data).
-# If it is absolute, system will save the data in exact location it points to.
-# If it is relative, system will save the data in the relative path directory
it indicates under the IoTDB folder.
-# If there are more than one directory, please separate them by commas ",".
-# If tiered storage is enabled, please separate directories of different tiers
by semicolons ";".
-# Use keyword OBJECT_STORAGE to denote object storage media, object storage
can only exist on the last tier and must have local dirs in the front tiers.
-# Note: If data_dirs is assigned an empty string(i.e.,zero-size), it will be
handled as a relative path.
-# effectiveMode: hot_reload
-# For windows platform
-# If its prefix is a drive specifier followed by "\\", or if its prefix is
"\\\\", then the path is absolute. Otherwise, it is relative.
-# dn_data_dirs=data\\datanode\\data
-# For Linux platform
-# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
-dn_data_dirs=/data1/data;/data2/data,/data3/data;/data4/data
-
-# Default tier TTL. When the survival time of the data exceeds the threshold,
it will be migrated to the next tier.
-# Negative value means the tier TTL is unlimited.
-# effectiveMode: restart
-# Datatype: long
-# Unit: ms
-tier_ttl_in_ms=86400000;864000000;-1
-
-# Disk usage threshold, data will be moved to the next tier when the usage of
the tier is higher than this threshold.
-# If tiered storage is enabled, please separate thresholds of different tiers
by semicolons ";".
-# effectiveMode: hot_reload
-# Datatype: double(percentage)
-dn_default_space_usage_thresholds=0.75;0.8;0.85
-
-# How to deal with the last tier?s data when its used space has been higher
than its dn_default_space_usage_thresholds.
-# The info of the two policies are as follows:
-# effectiveMode: hot_reload
-# 1. NULL: do nothing.
-# 2. DELETE: delete the oldest data.
-dn_tier_full_policy=DELETE
-```
-
-在该示例中，共配置了三个层级的存储，具体为：
-
-| 层级 | 存储目录 | 数据保留时间 | 磁盘存储空间阈值
|
-| -------- | ------------------------- | ----------------------------------- |
------------------------------------------------------------------ |
-| 层级一 | /data1/data | 只保留 1 天，超过后会移动到第二级 | 磁盘达到 75% 会移动部分文件到第二级
|
-| 层级二 | /data2/data,/data3/data | 只保留 10 天，超过后到第三级 | 磁盘达到 80% 会移动部分文件到第三级
|
-| 层级三 | /data4/data | 没有过期时间，会一直存储 | 磁盘达到 85%
会删除部分文件（因为dn\_tier\_full\_policy=DELETE） |
diff --git a/src/zh/UserGuide/latest/Basic-Concept/SpaceTL-Delete.md
b/src/zh/UserGuide/latest/Basic-Concept/SpaceTL-Delete.md
deleted file mode 100644
index 62b7a565..00000000
--- a/src/zh/UserGuide/latest/Basic-Concept/SpaceTL-Delete.md
+++ /dev/null
@@ -1,89 +0,0 @@
-<!--
-
- Licensed to the Apache Software Foundation (ASF) under one
- or more contributor license agreements. See the NOTICE file
- distributed with this work for additional information
- regarding copyright ownership. The ASF licenses this file
- to you under the Apache License, Version 2.0 (the
- "License"); you may not use this file except in compliance
- with the License. You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing,
- software distributed under the License is distributed on an
- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- KIND, either express or implied. See the License for the
- specific language governing permissions and limitations
- under the License.
-
--->
-
-# SpaceTL 删除
-
-## 1. 概述
-
-IoTDB 支持通过参数配置 SpaceTL 删除策略：即当最后一级存储层（对象存储空间被视为无限）的存储空间不足时，可选择是否触发 SpaceTL
删除机制以释放空间。
-
-注意：该机制仅会删除最后一个存储层中的文件。
-
-## 2. 参数介绍
-
-| 参数名 | 描述
| 默认值 | 生效方式 |
-| ------------------------ |
---------------------------------------------------------------------------------------------------------
| -------- | ---------- |
-| dn\_tier\_full\_policy | 最后一级存储层存储空间不足时的行为策略。可配置：1. NULL：不做任何处理1. DELETE：开启
SpaceTL 删除数据。 | NULL | 热加载 |
-
-参数说明：
-
-* 若最后一级存储层包含**对象存储**则不触发 SpaceTL
-* 该参数和 dn\_default\_space\_usage\_thresholds 参数联动，当最后一级存储层的可用空间低于
space\_usage\_thresholds 时触发 SpaceTL；默认当磁盘空间占用到达 85% 的时候开始删除直至空间占用降到 85% 以下才会停止
-
-## 3. 使用示例
-
-以三级存储为例，当最后一级存储空间到达85%时，触发 SpaceTL 删除机制开始删除文件。
-
-```Properties
-# data dirs
-# If this property is unset, system will save the data in the default relative
path directory under the IoTDB folder(i.e., %IOTDB_HOME%/data/datanode/data).
-# If it is absolute, system will save the data in exact location it points to.
-# If it is relative, system will save the data in the relative path directory
it indicates under the IoTDB folder.
-# If there are more than one directory, please separate them by commas ",".
-# If tiered storage is enabled, please separate directories of different tiers
by semicolons ";".
-# Use keyword OBJECT_STORAGE to denote object storage media, object storage
can only exist on the last tier and must have local dirs in the front tiers.
-# Note: If data_dirs is assigned an empty string(i.e.,zero-size), it will be
handled as a relative path.
-# effectiveMode: hot_reload
-# For windows platform
-# If its prefix is a drive specifier followed by "\\", or if its prefix is
"\\\\", then the path is absolute. Otherwise, it is relative.
-# dn_data_dirs=data\\datanode\\data
-# For Linux platform
-# If its prefix is "/", then the path is absolute. Otherwise, it is relative.
-dn_data_dirs=/data1/data;/data2/data,/data3/data;/data4/data
-
-# Default tier TTL. When the survival time of the data exceeds the threshold,
it will be migrated to the next tier.
-# Negative value means the tier TTL is unlimited.
-# effectiveMode: restart
-# Datatype: long
-# Unit: ms
-tier_ttl_in_ms=86400000;864000000;-1
-
-# Disk usage threshold, data will be moved to the next tier when the usage of
the tier is higher than this threshold.
-# If tiered storage is enabled, please separate thresholds of different tiers
by semicolons ";".
-# effectiveMode: hot_reload
-# Datatype: double(percentage)
-dn_default_space_usage_thresholds=0.75;0.8;0.85
-
-# How to deal with the last tier?s data when its used space has been higher
than its dn_default_space_usage_thresholds.
-# The info of the two policies are as follows:
-# effectiveMode: hot_reload
-# 1. NULL: do nothing.
-# 2. DELETE: delete the oldest data.
-dn_tier_full_policy=DELETE
-```
-
-在该示例中，共配置了三个层级的存储，具体为：
-
-| 层级 | 存储目录 | 数据保留时间 | 磁盘存储空间阈值
|
-| -------- | ------------------------- | ----------------------------------- |
------------------------------------------------------------------ |
-| 层级一 | /data1/data | 只保留 1 天，超过后会移动到第二级 | 磁盘达到 75% 会移动部分文件到第二级
|
-| 层级二 | /data2/data,/data3/data | 只保留 10 天，超过后到第三级 | 磁盘达到 80% 会移动部分文件到第三级
|
-| 层级三 | /data4/data | 没有过期时间，会一直存储 | 磁盘达到 85%
会删除部分文件（因为dn\_tier\_full\_policy=DELETE） |
