I've just added a DS14Mk4 to my production FAS2020. As we're a very small company, it's my only filer. It's running in Active/Active with 1 aggregate on each controller. I'm torn between two approaches:
1. simply adding new disks to each of the aggregates
2. creating a single aggregate on the DS14, moving the volumes from one of the controllers and expanding the aggregate on the 2020 to include all its' disks.
Now, I've tested the move in the simulator and it seems pretty straightforward. However, it does require a fairly significant downtime for some of my servers. The move seems like the right approach, but I'm wondering what the reasoning is behind not mixing internal and shelf disks on a 2020.
im reactivating this thread because ive a very similar situation. We have a FAS2020 with 12x410,73 GB SAS in Raid4 with 2 Controllers. Now, I want to extend with a new DS14MK4 with 14x450 GB SAS. There are some questions about the plugging that come to my mind (with the config after plugging/activiating the shelf, Im going to have no problems, I guess): we have the two active controllers on the main-system with both two ports (0a, 0b). On the new shelf, we have 4 ports, too, but als much i can see, there only 2 INPUT-ports (recognized by the direction of the displayed arrow) --> so, do i have to plug only the two input-ports and if so, with which of the main-system ports do i connect?
HA Multipathing is optional, it's just an extra path to the disks giving you redundancy if one path fails. You need to have enough controller ports available to cable this up as it uses double the ports of non-multipathed cabling.