H3C S7606-S 保存配置提示Failed

H3C WX5540E交换板保存配置失败，通过dir/all命令查看交换板flash显示无任何文件。

The current configuration will be written to the device. Are you sure? [Y/N]:y
Please input the file name(*.cfg)[flash:/config.cfg]
(To leave the existing filename unchanged, press the enter key):
 Validating file. Please wait...
Failed to write to device!
Failed to save the current configuration.
dir /all
% Device can't be found or file can't be found in the directory
 

长时间运行，WX5540E产品交换侧文件系统中的文件可能丢失。

1.在交换板通过下面命令格式化flash解决问题。

format flash:
All data on flash: will be lost , proceed with format ? [Y/N]:

2.升级至R2609P43及以上版本解决问题。