Add colocation and ordering for clvm

bsc#1222440 jsc#DOCTEAM-1357
SUSE · May 1, 2024 · 8fb3f09 · 8fb3f09
1 parent 3cf5ca3
commit 8fb3f09
Showing 1 changed file with 33 additions and 4 deletions.
diff --git a/xml/ha_cluster_lvm.xml b/xml/ha_cluster_lvm.xml
@@ -258,18 +258,47 @@
       </listitem>
       <listitem>
        <para>
-        Use shared activation mode for &ocfs; and add it to the cloned
-        <literal>g-storage</literal> group:
+        Use shared activation mode for &ocfs;:
        </para>
 <screen>&prompt.root;<command>crm configure primitive vg1 LVM-activate \
    params vgname=vg1 vg_access_mode=lvmlockd activation_mode=shared \
    op start timeout=90s interval=0 \
    op stop timeout=90s interval=0 \
-   op monitor interval=30s timeout=90s</command>
-&prompt.root;<command>crm configure modgroup g-storage add vg1</command></screen>
+   op monitor interval=30s timeout=90s</command></screen>
       </listitem>
      </itemizedlist>
     </step>
+    <step>
+      <para>
+        Make sure the VG can only be activated on nodes where the DLM resource
+        is already running:
+      </para>
+      <itemizedlist>
+        <listitem>
+          <para>
+            For a single VG using shared activation mode, you can add the VG
+            to the cloned <literal>g-storage</literal> group, which already has
+            internal colocation and order constraints:
+          </para>
+<screen>&prompt.root;<command>crm configure modgroup g-storage add vg1</command></screen>
+        </listitem>
+        <listitem>
+          <para>
+            For a single VG using exclusive activation mode, add constraints directly:
+          </para>
+<screen>&prompt.root;<command>crm configure colocation col-vg-with-dlm inf: vg1 cl-dlm</command>
+&prompt.root;<command>crm configure order o-dlm-before-vg Mandatory: cl-dlm vg1</command></screen>
+        </listitem>
+        <listitem>
+          <para>
+            For multiple VGs using either activation mode, you can add constraints
+            that apply to batches of resources:
+          </para>
+<screen>&prompt.root;<command>crm configure colocation col-vg-with-dlm inf: ( vg1 vg2 ) cl-dlm</command>
+&prompt.root;<command>crm configure order o-dlm-before-vg Mandatory: cl-dlm ( vg1 vg2 )</command></screen>
+        </listitem>
+      </itemizedlist>
+    </step>
     <step>
      <para>
       Check if the resources are running well: