I'm new to the Synology world. They are nice systems but I'm afraid I made a mistake when picking WD Caviar Green drives.
After I installed my first system (a DS212+), I noticed that the disk was clicking every 20 or so seconds when idle and the drives LEDs were flashing. It was doing that even if I disconnected it from the network.
Hours of Google, Forums etc...later, I have been able to determine that:
1) This is a long known problem due to APM
2) This behavior also increases the S.M.A.R.T. LCC count
3) The APM can be disabled and is systematically disabled by the DSM since Version 3.xxx
Problem: all this literature was referring to WD20EARS. I have WD20EARX drives and I'm running the DSM Version 4.0-2219 and everything is different.
The LCC is NOT increasing abnormally but the clicking is clearly here every 20 seconds and I'm afraid this will eventually and shortly kill my disks. I already lost one disk today (I'm now running 4 systems, all DS212+ with 2 x WD20EARX).
I opened a ticket with Synology support and send the "debug.dat" file. I'm now waiting for their response and in the meantime all my systems are turned down.
Am I the only one here having this WD20EARX situation ? Any idea on how to fix this ?
Again, with this model, the LCC is not increasing BUT I do have the regular clicking and LED flashing (and one prematurely dead drive).
Any help or feedback is welcome,