忽然停电，第三块硬盘在快照与存储总管里面显示错误：未挂载。重启NAS后打开此目录下各文件夹提示不存在。联系了了上海总部的售后电话，没几分钟就打过来了，cmd运行了下面的命令就好了。
[~] # md_
[~] # md_checker
Welcome to MD superblock checker (v2.0) - have a nice day~
Scanning system...
RAID metadata found!
UUID: e3bd4ed7:de4cc94e:28ed3283:089c6e46
Level: raid1
Devices: 1
Name: md1
Chunk Size: -
md Version: 1.0
Creation Time: Nov 1 23:16:39 2019
Status: ONLINE (md1) [U]
===============================================================================================
Enclosure | Port | Block Dev Name | # | Status | Last Update Time | Events | Array State
===============================================================================================
NAS_HOST 1 /dev/sdb3 0 Active Oct 9 11:32:56 2022 89 A
===============================================================================================
RAID metadata found!
UUID: 59639ace:32aeb322:369d4269:f68f2bbf
Level: raid1
Devices: 1
Name: md2
Chunk Size: -
md Version: 1.0
Creation Time: Nov 1 23:22:31 2019
Status: ONLINE (md2) [U]
===============================================================================================
Enclosure | Port | Block Dev Name | # | Status | Last Update Time | Events | Array State
===============================================================================================
NAS_HOST 2 /dev/sdc3 0 Active Oct 9 11:32:56 2022 14 A
===============================================================================================
RAID metadata found!
UUID: e91ddafa:ee8c7472:3f6e6d46:7963255b
Level: raid1
Devices: 1
Name: md3
Chunk Size: -
md Version: 1.0
Creation Time: May 15 10:31:40 2022
Status: OFFLINE
===============================================================================================
Enclosure | Port | Block Dev Name | # | Status | Last Update Time | Events | Array State
===============================================================================================
NAS_HOST 3 /dev/sda3 0 Active Oct 9 10:51:27 2022 2 A
===============================================================================================
[~] # /etc/init.d/init_lvm.sh
Changing old config name...
mv: can't rename '/etc/config/qdrbd.conf': No such file or directory
Reinitialing...
Detect disk(8, 0)...
dev_count ++ = 0Detect disk(8, 16)...
dev_count ++ = 1Detect disk(8, 32)...
dev_count ++ = 2Detect disk(251, 0)...
ignore non-root enclosure disk(251, 0).
Detect disk(8, 0)...
Detect disk(8, 16)...
Detect disk(8, 32)...
Detect disk(251, 0)...
ignore non-root enclosure disk(251, 0).
sh: /sys/block/sdb/device/qnap_param_latency: Permission denied
sh: /sys/block/sdc/device/qnap_param_latency: Permission denied
sh: /sys/block/sda/device/qnap_param_latency: Permission denied
sg_simple0: Inquiry SG_IO ioctl error: Invalid argument
sys_startup_p2:got called count = -1
Done
[~] # md_checker
Welcome to MD superblock checker (v2.0) - have a nice day~
Scanning system...
RAID metadata found!
UUID: e3bd4ed7:de4cc94e:28ed3283:089c6e46
Level: raid1
Devices: 1
Name: md1
Chunk Size: -
md Version: 1.0
Creation Time: Nov 1 23:16:39 2019
Status: ONLINE (md1) [U]
===============================================================================================
Enclosure | Port | Block Dev Name | # | Status | Last Update Time | Events | Array State
===============================================================================================
NAS_HOST 1 /dev/sdb3 0 Active Oct 9 11:34:34 2022 89 A
===============================================================================================
RAID metadata found!
UUID: 59639ace:32aeb322:369d4269:f68f2bbf
Level: raid1
Devices: 1
Name: md2
Chunk Size: -
md Version: 1.0
Creation Time: Nov 1 23:22:31 2019
Status: ONLINE (md2) [U]
===============================================================================================
Enclosure | Port | Block Dev Name | # | Status | Last Update Time | Events | Array State
===============================================================================================
NAS_HOST 2 /dev/sdc3 0 Active Oct 9 11:34:09 2022 14 A
===============================================================================================
RAID metadata found!
UUID: e91ddafa:ee8c7472:3f6e6d46:7963255b
Level: raid1
Devices: 1
Name: md3
Chunk Size: -
md Version: 1.0
Creation Time: May 15 10:31:40 2022
Status: ONLINE (md3) [U]
===============================================================================================
Enclosure | Port | Block Dev Name | # | Status | Last Update Time | Events | Array State
===============================================================================================
NAS_HOST 3 /dev/sda3 0 Active Oct 9 11:34:23 2022 2 A
===============================================================================================
[~] # df
Filesystem Size Used Available Use% Mounted on
none 67.0M 43.5M 23.5M 65% /
devtmpfs 744.3M 4.0K 744.3M 0% /dev
tmpfs 64.0M 988.0K 63.0M 2% /tmp
tmpfs 770.5M 156.0K 770.4M 0% /dev/shm
tmpfs 16.0M 0 16.0M 0% /share
tmpfs 16.0M 0 16.0M 0% /mnt/snapshot/export
/dev/md9 493.5M 373.5M 119.9M 76% /mnt/HDA_ROOT
cgroup_root 770.5M 0 770.5M 0% /sys/fs/cgroup
/dev/mapper/cachedev1
10.7T 9.5T 1.2T 89% /share/CACHEDEV1_DATA
/dev/mapper/cachedev2
10.7T 10.3T 374.1G 97% /share/CACHEDEV2_DATA
/dev/md13 417.0M 389.6M 27.4M 93% /mnt/ext
tmpfs 32.0M 27.2M 4.8M 85% /samba_third_party
tmpfs 1.0M 0 1.0M 0% /share/external/.cm
tmpfs 1.0M 0 1.0M 0% /mnt/hm/temp_mount
tmpfs 8.0M 0 8.0M 0% /var/syslog_maildir
tmpfs 48.0M 52.0K 47.9M 0% /share/CACHEDEV1_DATA/.samba/lock/msg.lock
tmpfs 16.0M 0 16.0M 0% /mnt/ext/opt/samba/private/msg.sock
tmpfs 1.0M 0 1.0M 0% /share/.quftp_client
tmpfs 16.0M 0 16.0M 0% /share/NFSv=4
/dev/mapper/cachedev1
10.7T 9.5T 1.2T 89% /share/NFSv=4/Public
tmpfs 4.0K 0 4.0K 0% /tmp/default_dav_root
tmpfs 1.0M 0 1.0M 0% /share/external/.nd
/dev/mapper/cachedev3
10.7T 2.6T 8.1T 24% /share/CACHEDEV3_DATA
[~] #