2014-06-26 01:52 AM
I'm going to go straight into this. I have a FAS2240-2 and one of the controllers is owner of att eh 1TB SATA disks. Thats 24 in total. We currently have 1 aggregate spead across 2 RAID-DP groups. each RAID group is 11 disks. 2 parity + 9 data. This leaves 2 disk spare on the controller. One theoretically for each raid group.
Now the problem.
if I perform a "sysconfig -r" I see the 2 disks marked as spare. Great! If I look at disks in the GUI I also see the disks marked as spare. However, if I check the aggregate and click edit under disk details it only shows 1 spare.
WHY? images are below/attached.
2014-06-26 02:26 AM
Okay, you definitely have 2 spares, there is no doubt about it.
I think the circled bit tells you, that the aggregate can be actually *expanded* by a 1 spare disk maximum, not 2, as you can't have a system without spares (well, in most cases )