It’s right there in 8.1 release notes:

Starting with Data ONTAP 8.1, you can replicate volumes by using SnapMirror between 32-bit and

64-bit volumes. For both synchronous and asynchronous volume replication, the SnapMirror source

and destination volumes can be either 32-bit or 64-bit.

---

With best regards

Andrey Borzenkov

Senior system engineer

Service operations

From: Fletcher Cocquyt [mailto:fcocquyt@stanford.edu]
Sent: Wednesday, November 30, 2011 9:14 AM
To: Borzenkov, Andrey
Cc: George T Chen; toasters@teaparty.net
Subject: Re: 8.1 32->64bit volume convert

Andrey, George - thanks for the feedback

Anyone have a list of the test points?

This one disables model checks - 

testpoint -m Dfmutil -n disable-model-checks -e 1 -r 1 –q

Is there one for ontap version checks?

Again - I am in pure test mode and have heard many conflicting stories - just want to see what's possible - we certainly were made to hold out for 8.1 for datamotion support for our upgrade plans.

Andrey - can you elaborate on your 8.1 statement ?  Cite any TR's ?

thanks

On Nov 29, 2011, at 9:01 PM, Borzenkov, Andrey wrote:

On the other hand, Sync Snapmirror and regular Async Snapmirror are block

based and do require that source and destination be the same type (either

32-bit or 64-bit).  

It's no more so for 8.1 which OP has.