Since upgrading to OS X 10.12 (Sierra), my Gen 3 array has been having issues; namely:
- 990GB used on actual 2.1TB available (16TB volume)
- the only consistent writing to the volume is Crashplan
- all 4 drives report as “good” (2 x 1TB, 2 x 750GB)
getting a regular warning nightly of:
[align=center]Red Alert. Drobo is critically low on capacity. Please add or replace a disk to increase capacity or you will experience an impact in performance.[/align]
After that warning, the volume becomes read-only with Finder spitting back an error of:
[align=center]The operation can’t be completed.
An unexpected error occurred (error code -50)[/align]
and the only way to resume normal operation is to reboot.
Any idea what might be happening?