Setting the max number of drives correctly, will fix the problem. Number: ARPL disc + your internal discs. Like: 1 + 2 internal discs mean set it to max 3 discs. Then, all usb discs attached, will normally be seens as external discs.
看起来可以修改 /etc.defaults/synoinfo.conf 下的值 esataportcfg="0xff000" usbportcfg="0x300000" internalportcfg="0xfff" 这几个分别代表了不同识别设备范围的十六进制,转换成二进制之后就能知道哪些端口应该识别成什么设备 没有验证过,我猜应该是这个问题