Caviar Green 2TB 64MB Cache: Can't Set Write Cache in Synology DiskStation DS212

Hey folks,

Got a 2TB WD Caviar Green, model wd20earxsp, with 64 MB cache.  This is, of course, on the supported drive list for the Synology DiskStation DS212.

I’m not able to set write cache on the array I’ve created, though.    I’ve gone through all the settings, looked at the jumper settings on the drive (nothing). 

Anyone with this setup than can offer any advise?

Kind regards,

Phil Brown

Never mind, looksl ike a DSA “feature” with the new 4.0 update (which can’t be backed out to 3.2 even with a factory reset).  Since I don’t know how to do this, I’m going to give Synology a call and wait for the fix in 4.1…hopefully.