对接华为存储iSCSI

一、华为Cinder Driver获取

1、通过OpenStack社区仓库。从Kilo版本开始，华为Driver已集成到OpenStack社区

仓库，安装OpenStack即会自带华为Driver，位于*…/cinder/cinder/volume/*

drivers/huawei目录下。

2、通过华为仓库。

步骤1：打开浏览器，访问仓库地址：https://github.com/Huawei/OpenStack_Driver。

步骤2 ：点击“Download ZIP”按钮，华为Driver将以压缩包的形式下载到本地。

步骤3 ：解压该压缩包。

步骤4 ：在解压出的目录下找到Cinder目录，其下即包含多个OpenStack版本的华为Driver。

二、容器化 Cinder Volume 服务华为 Driver 部署

步骤1 ：登录具有Cinder Volume 容器镜像的节点，使用docker save命令备份Cinder Volume

容器镜像到镜像文件。

步骤2 ：在任意目录下创建临时目录build并进入该目录。

# mkdir build;cd build

步骤3 ：将获取到的华为Driver代码文件拷贝当前目录下。

一、cinder iSCSI Huawei 对接

拷贝驱动到cinder_volume容器中

docker cp 华为drivers cinder_volume:/var/lib/kolla/venv/lib/python3.6/site-packages/cinder/volume/drivers/huawei
/var/lib/kolla/venv/lib/python3.6/site-packages/cinder/volume/drivers/huawei

修改cinder的配置文件vim /etc/kolla/cinder-volume/cinder.conf
配置多路径

[DEFAULT]
...
use_multipath_for_image_xfer = True
enforce_multipath_for_image_xfer = True
enabled_backends=huawei_backend_1,huawei_backend_2
#有多个存储用","隔开
...[huawei_backend_1]
volume_driver = cinder.volume.drivers.huawei.huawei_driver.HuaweiISCSIDriver
cinder_huawei_conf_file = /etc/cinder/cinder_huawei_conf_1.xml
volume_backend_name = huawei_backend_1[huawei_backend_2]
volume_driver = cinder.volume.drivers.huawei.huawei_driver.HuaweiISCSIDriver
cinder_huawei_conf_file = /etc/cinder/cinder_huawei_conf_2.xml
volume_backend_name = huawei_backend_2

在cinder_volume容器中修改/etc/cinder/cinder_huawei_conf.xml的属主:属组，cinder_huawei_conf.xml文件名可随意，容器内外都需要配置该文件。
注意权限： chown cinder:cinder cinder_huawei_conf_1.xml

<?xml version='1.0' encoding='UTF-8'?>
<config><Storage><Product>V5</Product><Protocol>iSCSI</Protocol><RestURL>https://服务器IP地址:8088/deviceManager/rest/;https://服务器IP地址:8088/deviceManager/rest/</RestURL><UserName>用户名</UserName><UserPassword>密码</UserPassword></Storage><LUN><StoragePool>资源池</StoragePool></LUN><iSCSI><Initiator HostName="*"  TargetIP="业务地址，多个用空格隔开"/></iSCSI>
</config>

重启cinder_volume

docker restart cinder_volume

查看日志
路径：/var/lib/docker/volumes/kolla_logs/_data/

[root@control01 kolla-logs]# tail -f cinder/cinder-volume.log
2020-06-08 16:03:28.576 35 INFO cinder.volume.manager [req-c1133e1d-0400-4724-a8d6-d0b66bb7d4af - - - - -] Driver post RPC initialization completed successfully.
2020-06-08 16:03:28.867 36 INFO cinder.volume.manager [req-4e946e9d-8f92-4719-b145-52192cdaf0cf - - - - -] Driver post RPC initialization completed successfully.

二、创建volume type

创建卷类型，表示自定义卷类型名称。

cinder type-create <name>

cinder type-create huawei

设置Thick卷类型，表示步骤1的卷类型名称。

openstack volume type set <volume-type name> --property volume_backend_name='huawei_backend_1' --property multiattach="<is> True"

Openstack cinder 查看

cinder extra-specs-list

操作记录

[root@control01 cinder]# cinder type-create mec_1
+--------------------------------------+-------+-------------+-----------+
| ID                                   | Name  | Description | Is_Public |
+--------------------------------------+-------+-------------+-----------+
| d647f9f5-4467-4247-8075-a04cabc645a6 | mec_1 | -           | True      |
+--------------------------------------+-------+-------------+-----------+
[root@control01 cinder]# cinder type-create mec_2
+--------------------------------------+-------+-------------+-----------+
| ID                                   | Name  | Description | Is_Public |
+--------------------------------------+-------+-------------+-----------+
| 7d10e48b-3338-4035-a57e-84e119e8a40b | mec_2 | -           | True      |
+--------------------------------------+-------+-------------+-----------+
[root@control01 cinder]# cinder type-key mec_1 set volume_backend_name=huawei_backend_1
[root@control01 cinder]# cinder type-key mec_2 set volume_backend_name=huawei_backend_2
[root@control01 cinder]# cinder extra-specs-list
+--------------------------------------+-------+---------------------------------------------+
| ID                                   | Name  | extra_specs                                 |
+--------------------------------------+-------+---------------------------------------------+
| 7d10e48b-3338-4035-a57e-84e119e8a40b | mec_2 | {'volume_backend_name': 'huawei_backend_2'} |
| d647f9f5-4467-4247-8075-a04cabc645a6 | mec_1 | {'volume_backend_name': 'huawei_backend_1'} |
+--------------------------------------+-------+---------------------------------------------+
[root@control01 cinder]#

三、⚠️注意： cinder_volume 搭建后一直重启

报错

[root@control01 ~]# docker exec -it -u 0 cinder_volume bash
Error response from daemon: Container 7007a88d1d09a6874b6086dccf9709ef321fba5f3f357bdcc7512f057e82e39e is restarting, wait until the container is running
[root@control01 ~]#

报错处理

1、openstack 部署完，cinder_volume 会不断重启。

2、需要临时增加一个配置：
路径：/etc/kolla/cinder-volume/cinder.conf

3、追加如下内容：
[DEFAULT]
…
use_multipath_for_image_xfer = True
enforce_multipath_for_image_xfer = True
enabled_backends=huawei_backend_1

[huawei_backend_1]

4、重启容器
docker restart cinder_volume

5、根据具体的存储，按上面的步骤配置

四、U版openstack对接华为存储后配置多路径

1、配置nova_compute

编辑/etc/nova/nova.conf，在[libvirt]中增加 “volume_use_multipath = true”。

重启nova_compute容器：docker restart nova_compute

2、配置cinder_volume

编辑/etc/cinder/cinder.conf，在BACKEND底部，新增如下内容

[huawei_backend]

…

use_multipath_for_image_xfer = true

enforce_multipath_for_image_xfer = true

重启cinder_volume容器：docker restart cinder_volume

注：multipath和iscsid服务需为正常状态