topic Re: active/active stretched metrocluster dual controllers in ONTAP Discussions

active/active stretched metrocluster dual controllers

wesleystaal — Thu, 05 Jun 2025 07:24:22 GMT

hi,

We're investigating if the FAS3140 is comething for our company. Is it possible to have a stretched metrocluster where each site has dual controllers? So a "4-controller" stretched metrocluster? I can't seem to find any documentation about this...

thanks in advance!

Re: active/active stretched metrocluster dual controllers

radek_kubka — Wed, 26 Aug 2009 16:32:56 GMT

Hi,

That's not doable.

http://www.netapp.com/us/library/technical-reports/tr-3548.html, page 8:

"It is important to remember that this will not allow one 31xx cluster to connect to another via MetroCluster. The only supported configuration is single controller to single controller (Stretch or Fabric)."

Regards,
Radek

Re: active/active stretched metrocluster dual controllers

wesleystaal — Thu, 27 Aug 2009 07:10:59 GMT

Hi Radek, Thanks for your helpful reply! I must have read over it in the manual!

regards Wesley

Re: active/active stretched metrocluster dual controllers

amiller_1 — Sat, 29 Aug 2009 03:37:04 GMT

This is definitely marketing-level....but the easiest way to think of Metrocluster is.....

Imagine that you have a clustered system but the two cluster heads were in separate buildings/locations. To make it fully resilient, you then mirror all the disks at the aggregate level.

Implementation can definitely be far more complex than that (there's a fantastic TR on it) but that's the sales/high level technical description.