I've done a bit of lurking and I believe I am ready to install an add on 24 disk shelf to my FAS2240-2 system. I was wondering if you could take a look over my procedure and let me know if it checks out. I really appreciate it.
Things to consider: our current setup is 2 aggregates(1 on each controller) with 11 disks split between them in raid DP ( 2 spares)
I am adding an additional 24 disks and wish to make a new raid group in each aggregate.
all disks are 600gb SAS
Disk Shelf will be unpackaged and racked above the Netapp FAS2240 controller.
Shelf will be powered on and given a unique shelf ID.
Auto assigning of disks will be turned off on both controllers via SSH session with command “options disk.auto_assign off”
Make auto support change “options autosupport.doit “before shelf add”.
Shelf will now be cabled (please see diagram below)
6. After confirming disks are seen by the controllers they will now be split between both:
Controller1: disk assign 1,3,5,7,9,11,13,15,17,19,21,23
Controller2: disk assign 2,4,6,8,10,12,14,16,18,20,22,24
7. Create new raid groups on existing aggregates(2) with the following commands
aggr add aggr_1 -g new 11
aggr add aggr_2 -g new 11
(we don’t assign 12 as I’d like to keep a hot spare disk per raid group)
But he is correct in the sense that NetApp best practice recommends you go IN to a square port and OUT of a circle port. Easy way to remember is 'O' for OUT. Doesn't matter if you have it backwards as long as its consistent across the environment, but Config Advisor will identify the discrepancy between circle and square and alert accordingly. Functionality is the same.
Richard Santos Garcia
Field Support Engineer, cDOT NCDA, NCIE-SAN for E-Series