一、问题描述

修改我司Cinder驱动配置文件并重启相应服务后，服务器端日志上报“Unable to update stats, MacroSANDriver -N/A  driver is uninitialized.”

日志信息

2015-02-09 17:30:55.463 105941 AUDIT cinder.service [-] Starting cinder-volume node (version 2014.1.3)
2015-02-09 17:30:55.466 105941 INFO cinder.volume.manager [req-e50c49f8-a413-4194-8436-641ef96d9c5f - - - - -] Starting volume driver MacroSANDriver (N/A)
2015-02-09 17:30:55.469 105941 ERROR cinder.volume.manager [req-e50c49f8-a413-4194-8436-641ef96d9c5f - - - - -] Error encountered during initialization of driver: MacroSANDriver
2015-02-09 17:30:55.470 105941 ERROR cinder.volume.manager [req-e50c49f8-a413-4194-8436-641ef96d9c5f - - - - -] [Errno 13] Permission denied: '/etc/iscsi/initiatorname.iscsi'
2015-02-09 17:30:55.470 105941 TRACE cinder.volume.manager Traceback (most recent call last):
2015-02-09 17:30:55.470 105941 TRACE cinder.volume.manager   File "/usr/lib/python2.7/dist-packages/cinder/volume/manager.py", line 242, in init_host
2015-02-09 17:30:55.470 105941 TRACE cinder.volume.manager     self.driver.do_setup(ctxt)
2015-02-09 17:30:55.470 105941 TRACE cinder.volume.manager   File "/usr/lib/python2.7/dist-packages/cinder/volume/drivers/macrosan/driver.py", line 213, in do_setup
2015-02-09 17:30:55.470 105941 TRACE cinder.volume.manager     fin = open('/etc/iscsi/initiatorname.iscsi')
2015-02-09 17:30:55.470 105941 TRACE cinder.volume.manager IOError: [Errno 13] Permission denied: '/etc/iscsi/initiatorname.iscsi'
2015-02-09 17:31:13.714 105941 WARNING cinder.volume.manager [req-afd5d669-418e-4219-a13b-eebc512b477f - - - - -] Unable to update stats, MacroSANDriver -N/A  driver is uninitialized.

二、问题原因

Ubuntu系统文件权限设置问题，Ubuntu默认不支持非root用户读取文件内容。

三、解决方法

步骤1：检查并确认/etc/iscsi/initiatorname.iscsi文件的访问权限，（需要保证所有用户都有读权限）。

步骤2：通过OpenStack管理界面删除错误状态的卷后，重新创建。

四、风险提示

操作前记录原先的权限

五、关键字

Ubuntu、Cinder驱动、MacroSANDriver、Errno 13、Permission denied、uninitialized