diff --git a/CHANGELOG.unreleased.md b/CHANGELOG.unreleased.md
index 9863df346..106ce4d0f 100644
--- a/CHANGELOG.unreleased.md
+++ b/CHANGELOG.unreleased.md
@@ -19,6 +19,7 @@
 - [Jobs] Fix `job.runSequence` method (PR [#5944](https://github.com/vatesfr/xen-orchestra/pull/5944))
 - [Netbox] Fix error when testing plugin on versions older than 2.10 (PR [#5963](https://github.com/vatesfr/xen-orchestra/pull/5963))
 - [Snapshot] Fix "Create VM from snapshot" creating a template instead of a VM (PR [#5955](https://github.com/vatesfr/xen-orchestra/pull/5955))
+- [Host/Logs] Improve the display of log content (PR [#5943](https://github.com/vatesfr/xen-orchestra/pull/5943))
 
 ### Packages to release
 
diff --git a/packages/xo-web/src/common/utils.js b/packages/xo-web/src/common/utils.js
index d580f79cb..12b1e8849 100644
--- a/packages/xo-web/src/common/utils.js
+++ b/packages/xo-web/src/common/utils.js
@@ -1,7 +1,9 @@
+import fromCallback from 'promise-toolbox/fromCallback'
 import getStream from 'get-stream'
 import humanFormat from 'human-format'
 import React from 'react'
 import ReadableStream from 'readable-stream'
+import xml2js from 'xml2js'
 import { connect } from 'react-redux'
 import { createPredicate } from 'value-matcher'
 import { FormattedDate } from 'react-intl'
@@ -9,6 +11,7 @@ import {
   clone,
   every,
   forEach,
+  get,
   isEmpty,
   isFunction,
   isPlainObject,
@@ -215,6 +218,28 @@ function safeHumanFormat(value, opts) {
   }
 }
 
+export const formatLogs = logs =>
+  Promise.all(
+    map(logs, ({ body }, id) => {
+      const matches = /^value:\s*([0-9.]+)\s+config:\s*([^]*)$/.exec(body)
+      if (matches === null) {
+        return
+      }
+
+      const [, value, xml] = matches
+      return fromCallback(xml2js.parseString, xml).then((result = {}) => {
+        const object = mapValues(result.variable, value => get(value, '[0].$.value'))
+        if (object.name === undefined) {
+          return
+        }
+
+        const { name, ...alarmAttributes } = object
+
+        return { name, value, alarmAttributes, id }
+      }, noop)
+    })
+  )
+
 export const formatSize = bytes => (bytes != null ? safeHumanFormat(bytes, { scale: 'binary', unit: 'B' }) : 'N/D')
 
 export const formatSizeShort = bytes => safeHumanFormat(bytes, { scale: 'binary', unit: 'B', decimals: 0 })
diff --git a/packages/xo-web/src/xo-app/dashboard/health/index.js b/packages/xo-web/src/xo-app/dashboard/health/index.js
index 169549117..495c49e44 100644
--- a/packages/xo-web/src/xo-app/dashboard/health/index.js
+++ b/packages/xo-web/src/xo-app/dashboard/health/index.js
@@ -1,7 +1,6 @@
 import _ from 'intl'
 import Component from 'base-component'
 import decorate from 'apply-decorators'
-import fromCallback from 'promise-toolbox/fromCallback'
 import { get as getDefined } from '@xen-orchestra/defined'
 import Icon from 'icon'
 import Link from 'link'
@@ -9,14 +8,13 @@ import NoObjects from 'no-objects'
 import React from 'react'
 import SortedTable from 'sorted-table'
 import Tooltip from 'tooltip'
-import xml2js from 'xml2js'
 import { Network, Sr, Vm } from 'render-xo-item'
 import { SelectPool } from 'select-objects'
 import { Container, Row, Col } from 'grid'
 import { Card, CardHeader, CardBlock } from 'card'
 import { FormattedRelative, FormattedTime } from 'react-intl'
-import { flatten, forEach, get, includes, isEmpty, map, mapValues } from 'lodash'
-import { connectStore, formatSize, noop, resolveIds } from 'utils'
+import { flatten, forEach, includes, isEmpty, map } from 'lodash'
+import { connectStore, formatLogs, formatSize, noop, resolveIds } from 'utils'
 import {
   deleteMessage,
   deleteMessages,
@@ -555,26 +553,7 @@ export default class Health extends Component {
   }
 
   _updateAlarms = props => {
-    Promise.all(
-      map(props.alertMessages, ({ body }, id) => {
-        const matches = /^value:\s*([0-9.]+)\s+config:\s*([^]*)$/.exec(body)
-        if (!matches) {
-          return
-        }
-
-        const [, value, xml] = matches
-        return fromCallback(xml2js.parseString, xml).then(result => {
-          const object = mapValues(result && result.variable, value => get(value, '[0].$.value'))
-          if (!object || !object.name) {
-            return
-          }
-
-          const { name, ...alarmAttributes } = object
-
-          return { name, value, alarmAttributes, id }
-        }, noop)
-      })
-    ).then(formattedMessages => {
+    formatLogs(props.alertMessages).then(formattedMessages => {
       this.setState({
         messages: map(formattedMessages, ({ id, ...formattedMessage }) => ({
           formatted: formattedMessage,
diff --git a/packages/xo-web/src/xo-app/host/tab-logs.js b/packages/xo-web/src/xo-app/host/tab-logs.js
index ae7aa9c7b..10f031def 100644
--- a/packages/xo-web/src/xo-app/host/tab-logs.js
+++ b/packages/xo-web/src/xo-app/host/tab-logs.js
@@ -6,7 +6,13 @@ import SortedTable from 'sorted-table'
 import { createPager } from 'selectors'
 import { Row, Col } from 'grid'
 import { deleteMessage, deleteMessages } from 'xo'
+import { formatLogs } from 'utils'
 import { FormattedRelative, FormattedTime } from 'react-intl'
+import { map } from 'lodash'
+
+const LOG_BODY_STYLE = {
+  whiteSpace: 'pre-wrap',
+}
 
 const LOG_COLUMNS = [
   {
@@ -34,7 +40,26 @@ const LOG_COLUMNS = [
   },
   {
     name: _('logContent'),
-    itemRenderer: log => log.body,
+    itemRenderer: ({ formatted, body }) =>
+      formatted !== undefined ? (
+        <div>
+          <Row>
+            <Col mediumSize={6}>
+              <strong>{formatted.name}</strong>
+            </Col>
+            <Col mediumSize={6}>{formatted.value}</Col>
+          </Row>
+          <br />
+          {map(formatted.alarmAttributes, (value, label) => (
+            <Row key={label}>
+              <Col mediumSize={6}>{label}</Col>
+              <Col mediumSize={6}>{value}</Col>
+            </Row>
+          ))}
+        </div>
+      ) : (
+        <pre style={LOG_BODY_STYLE}>{body}</pre>
+      ),
     sortCriteria: log => log.body,
   },
 ]
@@ -55,7 +80,7 @@ export default class TabLogs extends Component {
     super()
 
     this.getLogs = createPager(
-      () => this.props.logs,
+      () => this.state.logs,
       () => this.state.page,
       10
     )
@@ -65,6 +90,26 @@ export default class TabLogs extends Component {
     }
   }
 
+  componentDidMount() {
+    this._formatLogs(this.props.logs)
+  }
+
+  componentDidUpdate(props) {
+    if (props.logs !== this.props.logs) {
+      this._formatLogs(this.props.logs)
+    }
+  }
+
+  _formatLogs = logs =>
+    formatLogs(logs).then(formattedLogs => {
+      this.setState({
+        logs: map(formattedLogs, ({ id, ...formattedLogs }) => ({
+          formatted: formattedLogs,
+          ...logs[id],
+        })),
+      })
+    })
+
   _nextPage = () => this.setState({ page: this.state.page + 1 })
   _previousPage = () => this.setState({ page: this.state.page - 1 })