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Bug 1554784

Summary: [RFE] Migration between Cinder AZs
Product: Red Hat OpenStack Reporter: Gorka Eguileor <geguileo>
Component: openstack-cinderAssignee: Gorka Eguileor <geguileo>
Status: CLOSED ERRATA QA Contact: Avi Avraham <aavraham>
Severity: unspecified Docs Contact: Kim Nylander <knylande>
Priority: medium    
Version: 10.0 (Newton)CC: aavraham, dmacpher, ealcaniz, egafford, Egarciad, eharney, geguileo, knylande, molasaga, sclewis, scohen, srevivo, tshefi
Target Milestone: z8Keywords: FutureFeature, Triaged, ZStream
Target Release: 10.0 (Newton)   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: openstack-cinder-9.1.4-31.el7ost Doc Type: Enhancement
Doc Text:
This update provides support for volume migration between different availability zones.
 Story Points: ---
Clone Of: 1554772 Environment:
Last Closed: 2018-05-17 15:49:07 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1381612, 1420438, 1554768, 1554772, 1640757    

Comment 6 Tzach Shefi 2018-05-03 09:15:51 UTC 
Verified on:
openstack-cinder-9.1.4-33.el7ost.noarch

Add NFS backend to existing lvm, add availability zone dc1 dc2 

enabled_backend =  tripleo_iscsi,nfs

[tripleo_iscsi]
volume_driver=cinder.volume.drivers.lvm.LVMVolumeDriver
volumes_dir=/var/lib/cinder/volumes
iscsi_protocol=iscsi
iscsi_ip_address=172.17.3.10
volume_backend_name=tripleo_iscsi
iscsi_helper=lioadm
backend_availability_zone = dc1

[nfs]
volume_backend_name=nfs
volume_driver=cinder.volume.drivers.nfs.NfsDriver
nfs_shares_config=/etc/cinder/nfs_shares.conf
nfs_snapshot_support=True
nas_secure_file_operations=False
nas_secure_file_permissions=False
backend_availability_zone = dc2

cat /etc/cinder/nfs_shares.conf
10.35.160.111:/export/ins_cinder

systemctl restart openstack-cinder-volume.service

Create types
cinder type-create lvm 
cinder type-create nfs
cinder type-key nfs set volume_backend_name=nfs
cinder type-key lvm set volume_backend_name=tripleo_iscsi
cinder extra-specs-list
  
Create volume on nfs/dc2 
cinder create --display-name nfs-dc2 --volume-type nfs 1 --availability-zone dc2

cinder list
cinder help migrate

Migrate to other zone (nfs to lvm) 
cinder retype 39bdf624-61e0-4229-b2d0-1aecb52b7a96 lvm --migration-policy on-demand

cinder show 39bdf624-61e0-4229-b2d0-1aecb52b7a96
+--------------------------------+---------------------------------------+
| Property                       | Value                                 |
+--------------------------------+---------------------------------------+
| attachments                    | []                                    |
| availability_zone              | dc1    -> before migrate this was dc2 

Working as expected.
Comment 9 errata-xmlrpc 2018-05-17 15:49:07 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2018:1602