see video hdd ticking for no reason, led lights up and everything.. edit: FYI it would calm down eventually but it would click quietly, the led would stick flash the click but the hdd will sometimes "read" without flashing the led... some kind of inside-head adjustment?
i would make sure the clicking is actually coming from the HDD, and immediately backup your important files, if the clicking is coming from the HDD or try a different known working HDD & connect it as slave in order to backup yo important data BTW: i'm assuming your data is important that noise could very easily be a worn or misaligned fan
definately hdds, ticking is in sync with the LED flash and fans are clear had it for a while you can even feel the clicking on the hdds, raid0 array but clicks on both hdds which is rather strange and complicated if its dying hdd
Clicking is certainly worrying. Check the smart report on the drives.... PassMark DiskCheckup - SMART hard drive monitoring utility Here is a key to the smart codes. Self-Monitoring, Analysis, and Reporting Technology - Wikipedia, the free encyclopedia.
running a RAID0 setup is very dangerous because RAID0 has no "backup / parity drive" (unless you create a backup) so when a HDD fails (as you say it is) you lose the whole array, unlike with i think with RAID3 you can very easily rebuild your array by simply replacing the knacked HDD anybody, please correct me if i'm wrong
