My computer is telling me that an error has occurred in a RAID 0-driverunit and is telling me to take a backup IMMEDIATELY. But I'm not experiencing any actual problems so far, so what should I do?
 I don't KNOW how to take a backup anyway Backup - Connect an external hard drive and copy all the data to it. Backup done.Oh But that won't make the error icon disappear Yes. Thats correct... Could you check if there is any error MESSAGE or number? Could you please elaborate the issue.I would show you a picture if it wasn't in danish... But it says that there's an error in hard drive port 2.
 There's an illustration of a green colored hard drive port 0 and a red colored hard drive port 2. The red colored hard drive port 2 has a glowing X pulsing.Alright... HMMM... We will have to wait till someone gives the best answer as I dont have the information about RAID.  Ah, FOUND some information and in English too 

Hard Drive 1
Usage: Array member
Status: Error occurred
Device Port: 2
Device Port Location: Internal
Current Serial ATA Transfer Mode: Generation 2
Model: ST9200423ASG
Serial Number: 5TH08FHZ
Firmware: DE14
Native Command Queuing Support: Yes
Hard Drive Write Cache Enabled: Yes
Size: 186.3 GB
Number of Volumes: 1
Volume Member 1: ARRAY
Parent Array: Array_0000