Subscribe

Still no way to convert 32bits aggregats to 64 bits (in place) ?

Hello all,

Is it true that if you want to migrate to actual DOT 8.x and convert your existing 32 bits aggregats to 64 bits, you need to have available aggregats/shelfs because conversion is not possible on place ? do you think it's flexible for customers ?

thanks a lot

FG.

Re: Still no way to convert 32bits aggregats to 64 bits (in place) ?

You create new 64 bit aggregates from available spare disk drives, then create new volumes and copy the data over.

It seems to be an easy enopugh process for customers I've been working with, who are glad to have the increased cpacity.


I hope this response has been helpful to you.

At your service,


Eugene Kashpureff

NetAppU Instructor and Independent Consultant

(P.S. I appreciate points for helpful or correct answers.)

Re: Still no way to convert 32bits aggregats to 64 bits (in place) ?

Rest assured, the ability to grow and convert 32-bit aggregates into 64-bit aggregates is on the roadmap. That's all I can share, as It's not appropriate to talk more expansively about futures in the communities.

Re: Still no way to convert 32bits aggregats to 64 bits (in place) ?

Hummm...here, we don't have enough spare disks to migrate our existing aggregats...so we'll wait next need to add more shelfs to migrate to 64bits at that moment...or will wait for next release that will allow on place migration ;-))

thanks

FG.

Re: Still no way to convert 32bits aggregats to 64 bits (in place) ?

It's the single reason why we don't upgrade our system from 7.3.3. If we have to upgrade another time to get (minimal impact) upgrade path, then we can wait for the feature instead of doing upgrades twice.

As an IBM customer I have to wait for the official code anyway, so our upgrade plans right now is next summer when we have a "natural" date for system maintenance.

Hopefully by then IBM has also release an Ontap with the feature or we might be in for waiting until next Xmas/New years holiday to do the next system maintenance.

Re: Still no way to convert 32bits aggregats to 64 bits (in place) ?

Florent -

Your very welcome !

At your service,


Eugene Kashpureff

NetAppU Instructor and Independent Consultant
(P.S. I appreciate points for helpful or correct answers.)

Re: Still no way to convert 32bits aggregats to 64 bits (in place) ?

I'm a little confused by that comment, if you have no spare disks, how are you going to benefit from 64bit aggregates? Even if you could do an inplace upgrade to 64bit aggregates, you're still going to struggle with spare capacity, same as you do with 32bit aggregates.

Re: Still no way to convert 32bits aggregats to 64 bits (in place) ?

Do we need more spare disks for 64 bit aggregates than 32 bit? I think the point is if you don't have enough 'unused' capacity to duplicate your data, you can't upgrade the aggregates.

Re: Still no way to convert 32bits aggregats to 64 bits (in place) ?

Chuck,,

If a 32-bit aggregate is full or nearly full, and there is a need for more volumes or space in existing volumes, data will have to be migrated to another aggregate - either a second 32-bit aggregate or the new aggregate can be 64-bit.

Data migration from a 32-bit to 64-bit aggregate does entail some challenges, in particular if all the snapshots need to be preserved.  Volume SnapMirror and volcopy between different aggregate address types is not supported with Data ONTAP 8.0.x.

Re: Still no way to convert 32bits aggregats to 64 bits (in place) ?

I'd be curious to get the procedure (high level is fine) for 32-bit to 64-bit migration while retaining all snapshots.