From: Michael Jeanson <mjeanson@efficios.com>
Date: Thu, 3 Aug 2023 14:53:25 +0000 (-0400)
Subject: ansible: zfs tuning
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=005e5f4efa9f87f58ca3d5e9194d2b4f7c615500;p=lttng-ci.git

ansible: zfs tuning

Performance tuning on zfs 'tank', set atime=off and xattr=sa.

Add a dataset for libvirt images with a recordsize of 64k which matches
the default cluster size of qcow2 images.

Change-Id: I4c697f4b984821e4f856daeca569ac07db33cb93
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
---

diff --git a/automation/ansible/roles/zfs/tasks/main.yml b/automation/ansible/roles/zfs/tasks/main.yml
index 447224f..6e237fe 100644
--- a/automation/ansible/roles/zfs/tasks/main.yml
+++ b/automation/ansible/roles/zfs/tasks/main.yml
@@ -14,6 +14,8 @@
     state: present
     extra_zfs_properties:
       compression: zstd
+      atime: 'off'
+      xattr: 'sa'
 - name: Create datasets
   community.general.zfs:
     name: "tank/{{item}}"
@@ -29,3 +31,10 @@
     state: present
     extra_zfs_properties:
       mountpoint: '/var/lib/iso'
+- name: Create libvirt/images dataset
+  community.general.zfs:
+    name: 'tank/libvirt/images'
+    state: present
+    extra_zfs_properties:
+      mountpoint: '/var/lib/libvirt/images'
+      recordsize: '64k'