硬盘盒认不到硬盘，有大佬给点思路吗？

硬件信息

• 硬盘盒 A 绿联 CM197 ，查了一下主控芯片是 ASM1153e 。
• 硬盘 西数 3.5HDD （就叫他硬盘 A ），WD30 EFRX-68EUZN0 ，NTFS 分区。

发生的事件是这样：

用硬盘盒外挂在华硕 AC68U 做 FTP ，大概已经稳定使用了 2 年。在什么都没有改动过的情况下，前段时间突然连不上 FTP ，发现在路由上已经识别不到外接硬盘了。把硬盘盒带硬盘接电脑（ win10 ），也同样认不到硬盘。

尝试排查问题：

1. 硬盘没坏
   • 硬盘 A 放我另一个硬盘盒 B ，能识别，且完整看到过去保存的数据；
2. 硬盘盒也没坏
   • 再随便拿个别的硬盘（就叫硬盘 B ，也是 HDD ），放到这个硬盘盒里，能识别，能正常拷贝数据；
3. 再把硬盘 A 放进硬盘盒 A
   • win10 电脑也能识别了
4. 再把硬盘盒 A 接路由
   • 又不能识别了
5. 还尝试了更新 ac68u 的固件，并恢复初始化
   • 没有效果

路由 log

找了一下 log ，可能有关的信息贴在下面：

> Jul 25 05:09:43 kernel: scsi 18:0:0:0: Direct-Access WDC WD30 EFRX-68EUZN0 0 PQ: 0 ANSI: 6 > Jul 25 05:09:43 kernel: sd 18:0:0:0: Attached scsi generic sg0 type 0 > Jul 25 05:09:43 kernel: sd 18:0:0:0: [sda] Very big device. Trying to use READ CAPACITY(16). > Jul 25 05:09:43 kernel: sd 18:0:0:0: [sda] 5860533168 512-byte logical blocks: (3.00 TB/2.72 TiB) > Jul 25 05:09:43 kernel: sd 18:0:0:0: [sda] 4096-byte physical blocks > Jul 25 05:09:43 kernel: sd 18:0:0:0: [sda] Write Protect is off > Jul 25 05:09:43 kernel: sd 18:0:0:0: [sda] Assuming drive cache: write through > Jul 25 05:09:43 kernel: sd 18:0:0:0: [sda] Very big device. Trying to use READ CAPACITY(16). > Jul 25 05:09:43 kernel: sd 18:0:0:0: [sda] Assuming drive cache: write through > Jul 25 05:09:43 kernel: GPT:Primary header thinks Alt. header is not at the end of the disk. > Jul 25 05:09:43 kernel: GPT:1565565871 != 5860533167 > Jul 25 05:09:43 kernel: GPT:Alternate GPT header not at the end of the disk. > Jul 25 05:09:43 kernel: GPT:1565565871 != 5860533167 > Jul 25 05:09:43 kernel: GPT: Use GNU Parted to correct GPT errors. > Jul 25 05:09:43 kernel: sd 18:0:0:0: [sda] Very big device. Trying to use READ CAPACITY(16). > Jul 25 05:09:43 kernel: sd 18:0:0:0: [sda] Assuming drive cache: write through > Jul 25 05:09:43 kernel: sd 18:0:0:0: [sda] Attached SCSI disk > Jul 25 05:09:45 usb: USB /dev/sda2(ntfs) failed to mount At the first try! > Jul 25 05:09:48 usb: USB ntfs fs at /dev/sda2 mounted on /tmp/mnt/Data. > Jul 25 05:09:50 rc_service: hotplug 12698:notify_rc restart_nasapps > Jul 25 05:09:50 iTunes: daemon is stoped > Jul 25 05:09:50 FTP Server: daemon is stoped > Aug 15 09:36:44 kernel: sd 0:0:0:0: [sda] Very big device. Trying to use READ CAPACITY(16). > Aug 15 09:36:44 kernel: sd 0:0:0:0: [sda] 5860533168 512-byte logical blocks: (3.00 TB/2.72 TiB) > Aug 15 09:36:44 kernel: sd 0:0:0:0: [sda] 4096-byte physical blocks > Aug 15 09:36:44 kernel: sd 0:0:0:0: [sda] Write Protect is off > Aug 15 09:36:44 kernel: sd 0:0:0:0: [sda] Assuming drive cache: write through > Aug 15 09:36:44 kernel: sd 0:0:0:0: [sda] Very big device. Trying to use READ CAPACITY(16). > Aug 15 09:36:44 kernel: sd 0:0:0:0: [sda] Assuming drive cache: write through > Aug 15 09:36:45 kernel: GPT:Primary header thinks Alt. header is not at the end of the disk. > Aug 15 09:36:45 kernel: GPT:1565565871 != 5860533167 > Aug 15 09:36:45 kernel: GPT:Alternate GPT header not at the end of the disk. > Aug 15 09:36:45 kernel: GPT:1565565871 != 5860533167 > Aug 15 09:36:45 kernel: GPT: Use GNU Parted to correct GPT errors. > Aug 15 09:36:45 kernel: sd 0:0:0:0: [sda] Very big device. Trying to use READ CAPACITY(16). > Aug 15 09:36:45 kernel: sd 0:0:0:0: [sda] Assuming drive cache: write through > Aug 15 09:36:45 kernel: sd 0:0:0:0: [sda] Attached SCSI disk > Aug 15 09:36:56 usb: USB ntfs fs at /dev/sda2 mounted on /tmp/mnt/Data. > Aug 15 09:36:56 rc_service: hotplug 1491:notify_rc restart_nasapps > Aug 15 09:36:56 iTunes: daemon is stoped > Aug 15 09:36:56 FTP Server: daemon is stopped > Aug 15 09:36:57 Samba Server: smb daemon is stoped > Aug 15 09:36:57 kernel: gro disabled 

咋办

• 因为完全不懂，只能贴上来向大佬求助了；
• 路由搭的 FTP 是为了共享数据，路由在局域网内有 IP 可访问，路由下的电脑原本是希望断网的，若实在不行，可以用什么办法（端口转发？），在电脑上搭 FTP 服务，外部还是访问路由 IP 登 FTP 吗？