USB devices are supported on all 7210 SAS platforms as described in this document, except the 7210 SAS-D and 7210 SAS-Dxp.
7210 SAS platforms support the use of the USB interface as an alternate storage location that provides a larger storage capacity than the internal flash. You can use a USB storage device to store TiMOS images, configuration files, accounting records, and log files. The BOF can point to images on the USB and you can use the USB to load TiMOS images and configuration files.
The 7210 SAS-K 2F1C2T, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C provide an option to load the boot loader (boot.tim) from the USB storage device plugged into any one of the USB ports.
The USB devices and capacities that are supported for use with 7210 SAS are listed in the 7210 SAS Software Release Notes 22.x.Rx.
When a USB device is unplugged or removed from the system, a major alarm is raised. The alarm can be cleared using the shutdown command.
7210 SAS also auto-detects the device type when any of the supported devices are connected to the USB interface. Only approved USB mass storage devices and optical clip-on devices can be plugged in to the USB port and are recognized as valid devices. All other unsupported devices result in an error log being printed.
Nokia recommends using the shutdown command before removing the USB storage device.