7.1.2开始支持这个feature， 默认功能是关闭的， 开启后自动将主引擎harddisk:/mirror/ 下的文件同步到备引擎。
测试如下:
RP/0/RSP0/CPU0:ASR-9006-L_NPE2#show mirror <<<<< default disable
Sun Apr 25 03:40:36.544 UTC
% Mirror is not enabled
RP/0/RSP0/CPU0:ASR-9006-L_NPE2#
RP/0/RSP0/CPU0:ASR-9006-L_NPE2#
RP/0/RSP0/CPU0:ASR-9006-L_NPE2#conf
Sun Apr 25 03:40:38.634 UTC
RP/0/RSP0/CPU0:ASR-9006-L_NPE2(config)#mirror enable
RP/0/RSP0/CPU0:ASR-9006-L_NPE2(config-mirror)#commit
RP/0/RSP0/CPU0:ASR-9006-L_NPE2#show mirror
Sun Apr 25 03:40:53.688 UTC
MIRROR DIR: /harddisk:/mirror/
% Last sync of this dir ended at Sun Apr 25 03:40:43 2021
Location |Mirrored |Modification Time
------------------------------------------------
script-mgmt/|yes |Thu Apr 15 18:42:06 2021
RP/0/RSP0/CPU0:ASR-9006-L_NPE2#show run | file harddisk:/mirror/test_mirror.cfg
Sun Apr 25 03:41:35.610 UTC
Building configuration...
[OK]
RP/0/RSP0/CPU0:ASR-9006-L_NPE2#show mirror
Sun Apr 25 03:41:38.621 UTC
MIRROR DIR: /harddisk:/mirror/
% Last sync of this dir ended at Sun Apr 25 03:41:36 2021
Location |Mirrored |Modification Time
----------------------------------------------------
test_mirror.cfg |yes |Sun Apr 25 03:41:36 2021
script-mgmt/ |yes |Thu Apr 15 18:42:06 2021
RP/0/RSP0/CPU0:ASR-9006-L_NPE2#dir harddisk:/mirror/ location 0/rSP1/CPU0
Sun Apr 25 03:41:55.205 UTC
Directory of harddisk:/mirror/
652810 drwxr-xr-x. 7 4096 Apr 15 18:42 script-mgmt
652819 -rwxr--r--. 1 84943 Apr 25 03:41 test_mirror.cfg
23099260 kbytes total (18171220 kbytes free)
RP/0/RSP0/CPU0:ASR-9006-L_NPE2#