测试时用freenas与openfiler配置了单独存储,连入ESXi后提示正常已降级。经分析,降级的原因一般是双路备份的读写接口只有一条能用,也就是接口没有做冗余备份。
也可用如下命令列出device列表,根据其状态进行判断。esxcli storage core device list
The field for the device is specifically reserved for indicating the path status of the device.
—> When the device has more than one path to the target( storage array), the path status is “on”.
—> When all the paths to the target are down ( either off / dead ) the device status is “dead”.
—> If there is only one path to the target then the status is “degraded”.
—> When a device is unmapped from the storage array while ESX was using the device the status of the device is “not connected”.
—> If ESX fails to recognize the state of the device ( if all above mentioned scenarios are not applicable) then the device status is “unknown”.