Re: [ovirt-devel] [VDSM] Support for external leases - possible breakage with development version
On Thu, Dec 22, 2016 at 6:47 PM, Nir Soffer <nsoffer(a)redhat.com> wrote:
Hi all,
I merged today the last patches for supporting external leases.
In storage domain version 4 (the default in ovirt 4.1), there is now
a new volume named "xleases".
When upgrading older storage domain (version 3), we create and
format the new volume.
If you used a development version with storage domain version 4,
your storage domain may not work with current master. You should
recreated such storage domain.
As a workaround, you can create the special volume manually:
File storage:
sudo -u vdsm truncate -s 1G
/rhev/data-center/mnt/server:_path/domain_uuid/dom_md/xleases
Block storage:
lvcreate --name xleases --size 1g domain_uuid
Note that the volume should be also be formatted to actually use
external leases,
but having it should be good enough to keep the system happy.
To create a fully functional xleases volume, you can use this patch:
https://gerrit.ovirt.org/69069
Creating xleases volume on file storage:
PATH=/rhev/data-center/mnt/server:_export/sd_id/dom_md/xleases
truncate -s 1G $PATH
vdsm-tool format-xleases sd_id $PATH
Creating the xleases volume on block storage:
lvcreate --name xleases --size 1g sd_id
vdsm-tool format-xleases sd_id /dev/sd_id/xleases
lvchange -an sd_id/xleases
Nir