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OS X 10.12 (Sierra) and Gen 3 low space/can't write issues
02-02-2017, 11:59 AM
Post: #1
OS X 10.12 (Sierra) and Gen 3 low space/can't write issues
Since upgrading to OS X 10.12 (Sierra), my Gen 3 array has been having issues; namely:

Configuration:
- 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:

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.

After that warning, the volume becomes read-only with Finder spitting back an error of:

The operation can't be completed.
An unexpected error occurred (error code -50)

and the only way to resume normal operation is to reboot.

Any idea what might be happening?
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02-03-2017, 04:10 PM (This post was last modified: 02-03-2017 04:12 PM by Paul.)
Post: #2
RE: OS X 10.12 (Sierra) and Gen 3 low space/can't write issues
hi jeff, are you able to see what is running at night, to cause that message?

for example, is it a crashplan routine that is scheduled to run each night, or is theere possibly something else like another program, or a time machine backup that is trying to run?
(am just linking to your other related post too)
http://www.drobospace.com/forums/showthr...http://www.drobospace.com/forums/showthread.php?tid=146868&pid=204651

(btw i have XP home SP2, a Drobo v1 with 2x 1TB/2x 1.5TB WD greens, & a bkp Drobo v2 with the same + a DroboShare: unused)
& a DroboS v2 with 3xWD15EADS &2x1TB in DDR mode on win7, & a drobo5D (all usb)
  • btw i did a sustained (write) operation for about 6 hours, and got 13.2MB / sec ...objection? "sustained" :)
    (16.7MB/s on a v2 & 47-96MB/s drobo-s)
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