[ovirt-users] 4.5.4 Hosted-Engine: change hosted-engine storage
ovirt-engine-appliance-4.5-20221206133948
Hello,
I have some trouble with my Gluster instance where there is hosted-engine. I would like to
copy data from that hosted engine and reverse to another hosted-engine storage (I will try
NFS).
I think the main method is to put ovirt in global-management mode, stop the hosted-engine
instance, unmount the hosted-engine storage
systemctl stop {vdsmd;supervdsmd;ovirt-ha-broker;ovirt-ha-agent};
hosted-engine --disconnect-storage
umount /rhev/data-center/mnt/glusterSD/localhost:_glen/
and then redeploy the hosted engine with the current backup:
method 1: [doesn't work; it fail the ansible script after the pause]
ovirt-hosted-engine-setup --4
--config-append=/var/lib/ovirt-hosted-engine-setup/answers/answers-20230116184834.conf
--restore-from-file=230116-backup.tar.gz
--ansible-extra-vars=he_pause_before_engine_setup=true
but it doesn't work
method 2: [I cannot find the glitch]
I saw in every node there is a configuration under
/etc/ovirt-hosted-engine/hosted-engine.conf where there are some interessant entry:
vm_disk_id=0a1a501c-fc45-430f-bfd3-076172cec406
vm_disk_vol_id=f65dab86-67f1-46fa-87c0-f9076f479741
storage=localhost:/glen
domainType=glusterfs
metadata_volume_UUID=4e64e155-ee11-4fdc-b9a0-a7cbee5e4181
metadata_image_UUID=20234090-ea40-4614-ae95-8f91b339ba3e
lockspace_volume_UUID=6a975f46-4126-4c2a-b444-6e5a34872cf6
lockspace_image_UUID=893a1fc1-9a1d-44fc-a02f-8fdac19afc18
conf_volume_UUID=206e505f-1bb8-4cc4-abd9-942654c47612
conf_image_UUID=9871a483-8e7b-4f52-bf71-a6a8adc2309b
so, the conf_volume under conf_image dir is a TAR archive:
/rhev/data-center/mnt/glusterSD/localhost:_glen/3577c21e-f757-4405-97d1-0f827c9b4e22/images/9871a483-8e7b-4f52-bf71-a6a8adc2309b/206e505f-1bb8-4cc4-abd9-942654c47612:
POSIX tar archive (GNU)
That I think is the common configuration. I copied the structure (from
3577c21e-f757-4405-97d1-0f827c9b4e22 directory) in the new storage (nfs), changed the
entries under local configuration and "shared configuration":
from storage=localhost:/glen to storage=<server>:/directory (writable by vdsm user
and kvm group)
from domainType=glusterfs to domainType=nfs
and issued:
1. hosted-engine --connect-storage <- work
2. hosted-engine --vm-start <- doesn't work because there is a complain about the
not-starting ovirt-ha-agent
What can I do?
Is there any documentation somewhere?
Diego