ONTAP Hardware

FAS 2040 - Active / Passive Disk options

richardmonks

I have been requsted tp build a 2040 in a Active / Passive confguration allocating all 12 internal disks to the primary controller. Is it possible to do this leaving no disks for secondary controller? (will cluster failover still work)

I have always been told you need to reserve 3 disks for second controller + a spare?

Many thanks

Richard.

3 REPLIES 3

peter_lehmann

Just check this thread out:

http://communities.netapp.com/message/51881#51881

It can be done... But if you leave no disks to the second controller, you will have NO cluster functionality left.

Peter

aborzenkov

Cluster failover won’t work. The minimum technically possible number of disks on passive system – 2 (you will get permanent warning status due to spares low). Arguably 3 in RAID_DP offers better resiliency than 2 in RAID4 + spare (and you can turn off spares low warning in this case).

This question comes up pretty often. Just do a search ☺

richardmonks

Thanks guys!

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