commit 6bcd8cad16c39dd8596d654eb4587e848d0db1fe
author Peter Penchev <openstack-dev@storpool.com> Fri Jan 12 23:49:04 2018 +0200
committer Peter Penchev <openstack-dev@storpool.com> Tue Jan 16 18:05:06 2018 +0200
tree bf45cae5f0ac268b3ca04c849e0a5f454be4ffc3
parent b09e9b9b48d0f858729d2b88b033a18873b2a89e

Bump the Cinder LVM backing file size to 24Gb.

This follows a change made to devstack-gate in commit 841ebc3 to allow
tempest to succeed even if it happens to run several volume tests in
parallel.  Right now it's possible for a tempest-full test (run without
devstack-gate) to fail with an "Insufficient free virtual space" error in
the cinder-scheduler log.

Suggested by: Clark Boylan <clark.boylan@gmail.com>
Closes-Bug: 1743597
Change-Id: I16ccb9976d1bc7c9f56a6a4d73e35042a5867ef9

doc/source/configuration.rst

diff --git a/doc/source/configuration.rst b/doc/source/configuration.rst
index d932d8c..49cad05 100644
--- a/doc/source/configuration.rst
+++ b/doc/source/configuration.rst
@@ -667,7 +667,7 @@
 
         VOLUME_GROUP_NAME="stack-volumes"
         VOLUME_NAME_PREFIX="volume-"
-        VOLUME_BACKING_FILE_SIZE=10250M
+        VOLUME_BACKING_FILE_SIZE=24G
 
 
 Keystone