YDBDOCS-633: continue restructuring (#3919)

Author: blinkov

ydb/docs/en/core/_includes/fault-tolerance.md

@@ -23,7 +23,7 @@ Release date: October 12, 2023.
 * A new option `PostgreSQL` has been added to the query type selector settings, which is available when the `Enable additional query modes` parameter is enabled. Also, the query history now takes into account the syntax used when executing the query.
 * The YQL query template for creating a table has been updated. Added a description of the available parameters.
 * Now sorting and filtering for Storage and Nodes tables takes place on the server. To use this functionality, you need to enable the parameter `Offload tables filters and sorting to backend` in the experiments section.
-* Buttons for creating, changing and deleting [topics](https://ydb.tech/ru/docs/concepts/topic) have been added to the context menu.
+* Buttons for creating, changing and deleting [topics](concepts/topic.md) have been added to the context menu.
 * Added sorting by criticality for all issues in the tree in `Healthcheck`.
 
 **Performance:**
@@ -155,7 +155,7 @@ Release date: May 5, 2023. To update to version 23.1, select the [Downloads](dow
 
 * Added [initial table scan](concepts/cdc.md#initial-scan) when creating a CDC changefeed. Now, you can export all the data existing at the time of changefeed creation.
 * Added [atomic index replacement](dba/secondary-indexes.md#atomic-index-replacement). Now, you can atomically replace one pre-defined index with another. This operation is absolutely transparent for your application. Indexes are replaced seamlessly, with no downtime.
-* Added the [audit log](cluster/audit-log.md): Event stream including data about all the operations on {{ ydb-short-name }} objects.
+* Added the [audit log](security/audit-log.md): Event stream including data about all the operations on {{ ydb-short-name }} objects.
 
 **Performance:**
 

ydb/docs/en/core/administration/production-storage-config.md

@@ -54,7 +54,7 @@ Authentication by username and password includes the following steps:
 
 To enable username/password authentication, use `true` in the `enforce_user_token_requirement` key of the cluster's [configuration file](../deploy/configuration/config.md#auth).
 
-To learn how to manage roles and users, see [{#T}](../cluster/access.md).
+To learn how to manage roles and users, see [{#T}](../security/access-management.md).
 
 <!-- ### API получения токенов IAM {#token-refresh-api}
 

ydb/docs/en/core/changelog-server.md

@@ -17,6 +17,8 @@ items:
   items:
   - name: Overview
     href: cluster/index.md
+  - name: Topology
+    href: topology.md
   - name: General YDB schema
     href: cluster/common_scheme_ydb.md
   - name: Disk subsystem of a cluster

ydb/docs/en/core/cluster/index.md

@@ -146,4 +146,4 @@ StorageLoad: {
     }
 }
 ```
-Calculated percentiles will only represent the requests of the main load cycle and won't include write requests sent during the initial data allocation. The [graphs in Monitoring](../administration/grafana-dashboards.md) should be of interest, for example, they allow to trace the request latency degradation caused by the increasing load.
+Calculated percentiles will only represent the requests of the main load cycle and won't include write requests sent during the initial data allocation. The [graphs in Monitoring](../reference/observability/metrics/grafana-dashboards.md) should be of interest, for example, they allow to trace the request latency degradation caused by the increasing load.

ydb/docs/en/core/cluster/logs.md

@@ -21,7 +21,7 @@ Thus, {{ ydb-short-name }} server major version is a combination of the first tw
 
 ### Compatibility {#server-compatibility}
 
-{{ ydb-short-name }} maintains compatibility between major versions to ensure a cluster can operate while its nodes run two adjacent major versions of the YDB server executable. You may refer the [Updating {{ ydb-short-name }}](../administration/upgrade.md) article to learn more about the cluster upgrade procedure.
+{{ ydb-short-name }} maintains compatibility between major versions to ensure a cluster can operate while its nodes run two adjacent major versions of the YDB server executable. You may refer the [Updating {{ ydb-short-name }}](../devops/manual/upgrade.md) article to learn more about the cluster upgrade procedure.
 
 Given the above compatibility target, major releases go in pairs: odd numbered releases add new functionality switched off by feature flags, and even numbered releases enable that functionality by default.
 

ydb/docs/en/core/cluster/system-requirements.md

@@ -1,4 +1,6 @@
 items:
 - name: Overview
   href: index.md
-- include: { mode: link, path: toc_i.yaml }
+- include:
+    mode: link
+    path: toc_i.yaml

ydb/docs/en/core/cluster/toc_i.yaml

@@ -1,13 +1,12 @@
-# Deploying YDB clusters
+# Deploying {{ ydb-short-name }} clusters
 
-This section provides information on deploying and configuring multi-node YDB clusters that serve multiple databases.
+This section provides information on deploying and configuring multi-node {{ ydb-short-name }} clusters that serve multiple databases.
 
-* [{#T}](../../cluster/system-requirements.md).
-* [{#T}](../../cluster/topology.md).
+* [{#T}](../../devops/system-requirements.md).
+* [{#T}](../../concepts/topology.md).
 * [Deployment with Ansible](../../devops/ansible/index.md).
 * [Deployment with Kubernetes](../../devops/kubernetes/index.md).
 * [Deployment on virtual and physical servers](../manual/deploy-ydb-on-premises.md).
 * [Configuration](../configuration/config.md).
-* [BlobStorage production configurations](../../administration/production-storage-config.md).
 
 Step-by-step scenarios for rapidly deploying a local single-node cluster for development and testing are given in the [Quick start](../../quickstart.md) section.