NEC Express5800/320Fc Manual download pdf (Page 84)

USB Storage Devices

6-2 Express5800/ftServer: System Administrator’s Guide for the Linux Operating System

If a device is plugged into a USB hub, the name has two numbers. For example,

sd1.3usb is the name of the device attached to port 3 of a hub connected to port 1 of

the root USB hub. If you add another hub to the chain, the device name would contain

a third number.

The udevinfo command translates the internal name into the name assigned by the

udev command. For example, the following command and output show that the udev

command has assigned the name sd1usb to the device with the internal name sde:

# udevinfo -q name -p /sys/block/sde

sd1usb

The ls command displays the device node for this device:

# ls -l /dev/sd1usb

brw-rw---- 1 root disk 8, 64 Oct 24 16:18 /dev/sd1usb

You can also translate the name assigned by the udev command into the internal

name. For example:

# ls -l /dev/sd*usb

brw-rw---- 1 root disk 8, 64 Oct 24 16:18 /dev/sd1usb

1 2 ... 79 80 81 82 83 84 85 86 87 88 89 ... 155 156

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NEC Express5800/320Fc Manual Page 84