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【RAID 【'''RAID setup and Jumper setting】setting'''】
X880
,[[File:RAID-instruction.jpg|800px]]
＊'''Warning''' : Please backup your data before setup and switch, otherwise you maybe lost your data.
3. Switch RAID mode
* Set the switch button to your preferred RAID mode(PM/RAID 0/RAID 1/SPAN) as per the RAID illustration table.
* Press the '''SET''' button for about '''5 seconds''', and release it till the blue LED indicators starts flashing.
* After RAID mode changed, please confirm that the PC can recognize the disk(s) properly and shows the right capacity.
fdisk -l
You can found two hard drives if you select 'clear raid mode'(this is PM model)
pi@raspberrypi:~ $ fdisk -l
fdisk: cannot open /dev/ram0: Permission denied
fdisk: cannot open /dev/ram1: Permission denied
fdisk: cannot open /dev/ram2: Permission denied
fdisk: cannot open /dev/ram3: Permission denied
fdisk: cannot open /dev/ram4: Permission denied
fdisk: cannot open /dev/ram5: Permission denied
fdisk: cannot open /dev/ram6: Permission denied
fdisk: cannot open /dev/ram7: Permission denied
fdisk: cannot open /dev/ram8: Permission denied
fdisk: cannot open /dev/ram9: Permission denied
fdisk: cannot open /dev/ram10: Permission denied
fdisk: cannot open /dev/ram11: Permission denied
fdisk: cannot open /dev/ram12: Permission denied
fdisk: cannot open /dev/ram13: Permission denied
fdisk: cannot open /dev/ram14: Permission denied
fdisk: cannot open /dev/ram15: Permission denied
fdisk: cannot open /dev/mmcblk0: Permission denied
fdisk: cannot open /dev/sda: Permission denied
fdisk: cannot open /dev/sdb: Permission denied
or
You found only one hard drive if you select the RAID0/RAID1 /SPAN model pi@raspberrypi:~ $ fdisk -l fdisk: cannot open /dev/ram0: Permission denied fdisk: cannot open /dev/ram1: Permission denied fdisk: cannot open /dev/ram2: Permission denied fdisk: cannot open /dev/ram3: Permission denied fdisk: cannot open /dev/ram4: Permission denied fdisk: cannot open /dev/ram5: Permission denied fdisk: cannot open /dev/ram6: Permission denied fdisk: cannot open /dev/ram7: Permission denied fdisk: cannot open /dev/ram8: Permission denied fdisk: cannot open /dev/ram9: Permission denied fdisk: cannot open /dev/ram10: Permission denied fdisk: cannot open /dev/ram11: Permission denied fdisk: cannot open /dev/ram12: Permission denied fdisk: cannot open /dev/ram13: Permission denied fdisk: cannot open /dev/ram14: Permission denied fdisk: cannot open /dev/ram15: Permission denied fdisk: cannot open /dev/mmcblk0: Permission denied fdisk: cannot open /dev/sda: Permission denied
4. Set CLEAR RAID mode (PM, factory default setup)