On Wed, Nov 3, 2021 at 3:58 PM <christian.peater@gmx.de> wrote:
thnx for the quick answer.
the two disk volumes i have reduced are active. the response of the curl command is saying <status>complete</status>. i have set async to false to get a response from the rest api. when i called lvdisplay on the image_id of the volumes i was able to see that the images got shrank.
SD is Fibre Channel so it is block SD
the vms are running oracle databases. maybe i should freeze fs bevor calling reduce command? is it possible to call fsfreeze via rest api?
Reducing active volume is blocked in 4.4 since this is completely unsafe operation that is likely to corrupt the disk. See the patch fixing this: https://gerrit.ovirt.org/c/ovirt-engine/+/111541 It is possible that this is not blocked in older 4.3 versions. This is the risk of running 4.3. There is no reason to freeze the file system, reducing is an operation that cannot affect the guest if done safely (on read only layer). Nir