ONTAP Discussions
ONTAP Discussions
Hello people
just doublechecking about the requirement of having at least twenty drives NLSAS HDD drives within a DS460C to be deployed.
does it still remain as such?, I mean still true about for proper cooling populating first row in each drawer?
Thanks in advance
Solved! See The Solution
A minimum of 20 drives is needed for proper cooling
Beyond that, disks should be evenly distributed on each drawer
This Kb, might have seen it already, does say that anything less than 60 drives needs to be placed in a 'U' shape pattern (first 4 slots) for each drawer to eliminate/not generate error messages.
How to arrange disks in a non fully-populated DS460C or DE460C shelf
https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Systems/FAS_Systems/How_to_arrange_disks_in_a_non_fully-populated_DS460C_or_DE460C_shelf
Hello people again.
Thx for being so quick.
is that the answer to my question a yes? 20hdd are needed?
reading this below
"For a partially populated DS460C/DE460C disk shelf which does not have a drive in every drive slot, you must ensure that:
i am not 100% sure yet
Regards
Yes. The reason is this key recommendation : "A DS460C shelf that has disks fully populating the first row in the drawer (0, 3, 6, 9) will not create EMS alert in ONTAP, nor generate an Active IQ alert." Considering this requirements, you will need 4 in each of the Drawers (4 x 5 = 20 Minimum).
As you have 20 drives: In each drawer's first row will occupy : 0,3,6,9 x 5D = 20 Drives
A minimum of 20 drives is needed for proper cooling
Beyond that, disks should be evenly distributed on each drawer