1. 环境

云平台：兼容OpenStack Queens的发行版（kolla）
HOST OS：Kylin-Server-10-SP1-Release-Build20-20210518-arm64

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2. LVM后端

2.1 创建LVM

有以下两种方式提供LVM磁盘

2.1.1 实际物理磁盘

假如设备为sdb（本地盘或者san提供的盘）

pvcreate /dev/sdb
vgcreate cinder-volumes /dev/sdb
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2.1.2虚拟磁盘

虚拟磁盘

dd if=/dev/zero of=/opt/cinder-volumes bs=1 count=0 seek=100G
losetup /dev/loop1 /opt/cinder-volumes
pvcreate /dev/loop1
vgcreate cinder-volumes /dev/loop1
pvscan
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2.2 cinder volume配置

设置volume_backend_name，以便关联
vim /etc/kolla/cinder-volume/cinder.conf

[DEFAULT]
enabled_backends = lvm
[lvm]
volume_driver = cinder.volume.drivers.lvm.LVMVolumeDriver
volume_group = cinder-volumes
iscsi_protocol = iscsi
iscsi_helper = tgtadm
volume_backend_name=LVM
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重启服务：

docker restart cinder_volume
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2.3 关联LVM类型

cinder type-create lvm
cinder type-key lvm set volume_backend_name=LVM
cinder extra-specs-list
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2.4 创建指定类型的卷

cinder create 1 --volume-type lvm
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通过命令查看cinder list

+--------------------------------------+-----------+------+------+-------------+----------+-------------+
| ID                                   | Status    | Name | Size | Volume Type | Bootable | Attached to |
+--------------------------------------+-----------+------+------+-------------+----------+-------------+
| 658f4257-295e-4518-a35b-400b602efef8 | available | -    | 1    | lvm         | false    |             |
+--------------------------------------+-----------+------+------+-------------+----------+-------------+

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3. NFS后端

3.1 NFS服务端

存在以下两种方式提供NFS后端

3.1.1 NAS存储

略，依据NAS存储手册，提供的存储地址和共享路径

3.1.2 自建NFS SERVER

安装nfs服务包，配置共享目录
vim /etc/exports

/nfs_share  x.x.x.x/x(rw,no_subtree_check,no_root_squash)
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注：x.x.x.x/x代表可以提供nfs共享服务的网段

exportfs -r重新加载配置，exportfs显示共享信息

3.2 cinder volume配置

可以添加多个共享存储
vim /etc/kolla/cinder-volume/nfs_shares

x.x.x.x:/nfs_share
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注：x.x.x.x代表nfs server或者nas地址，nfs_share代表共享目录

vim /etc/kolla/cinder-volume/config.json

......
        {
            "source": "/var/lib/kolla/config_files/nfs_shares",
            "dest": "/etc/cinder/nfs_shares",
            "owner": "cinder",
            "perm": "0600",
            "optional": true
        },
......
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设置volume_backend_name，以便关联
vim /etc/kolla/cinder-volume/cinder.conf

[DEFAULT]
enabled_backends = lvm,nfs
[nfs]
volume_backend_name=nfs
nfs_mount_attempts = 3
nfs_oversub_ratio = 1.0
volume_driver=cinder.volume.drivers.nfs.NfsDriver
nfs_shares_config=/etc/cinder/nfs_shares
nfs_mount_point_base=$state_path/mnt
nfs_sparsed_volumes = false
nfs_used_ratio = 0.95
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重启服务

docker restart cinder_volume
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3.3 关联LVM类型

cinder type-create nfs
cinder type-key nfs set volume_backend_name=nfs
cinder extra-specs-list
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3.4 创建指定类型的卷

cinder create 1 --volume-type nfs
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通过命令查看cinder list

+--------------------------------------+-----------+------+------+-------------+----------+-------------+
| ID                                   | Status    | Name | Size | Volume Type | Bootable | Attached to |
+--------------------------------------+-----------+------+------+-------------+----------+-------------+
| 03efe4b3-334e-44dc-804d-a3ad0201e385 | available | -    | 1    | nfs         | false    |             |
| 658f4257-295e-4518-a35b-400b602efef8 | available | -    | 1    | lvm         | false    |             |
+--------------------------------------+-----------+------+------+-------------+----------+-------------+

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4. 问题记录

无

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5. 参考文献

无