topic Re: upgrade 32bit aggr to 64bit in ONTAP Discussions

upgrade 32bit aggr to 64bit

TDUBB1234 — Thu, 05 Jun 2025 06:24:35 GMT

how do I upgrade a 32bit aggr to 64 bit? what are the steps and downtime?

Re: upgrade 32bit aggr to 64bit

scottgelb — Wed, 20 Jun 2012 15:49:09 GMT

With ONTAP 8.1, you add disks to grow the aggregate over 16TB and it will automatically convert in the background (no downtime) from 32 to 64 bit. Growing over 16TB is the only supported method. If you search this community you will see some posts of a diag mode in place method without adding disks but that is not supported (diag mode command).

You can also replicate from 32 to 64 with ONTAP 8.1 and have a quick downtime while you cutover to the new volume but if you are on 8.1 then the best solution is to add disks and convert the existing aggr for now downtime.

Re: upgrade 32bit aggr to 64bit

aborzenkov — Wed, 20 Jun 2012 15:51:45 GMT

It does not do this automatically, you have to explicitly say you want to convert when adding disks. Otherwise it just rejects command if size will exceed 16TiB.

Re: upgrade 32bit aggr to 64bit

scottgelb — Wed, 20 Jun 2012 15:53:40 GMT

System manager should give a popup they can click wen growing to convert. Do you use cli or system manager and is it ontap 8.1?

Re: upgrade 32bit aggr to 64bit

aborzenkov — Wed, 20 Jun 2012 15:55:21 GMT

CLI of course ☺

Re: upgrade 32bit aggr to 64bit

TDUBB1234 — Thu, 21 Jun 2012 21:08:37 GMT

but im on 8.0.1P3. how do i convert to 64bit without upgrading to 8.1?

Re: upgrade 32bit aggr to 64bit

radek_kubka — Thu, 21 Jun 2012 21:32:51 GMT

Basically you can't.

What you can do, is to create new 64-bit aggregate and then migrate the data off the old one, e.g. via Qtree SnapMirror (VSM won't work unfortunately).

Regards,

Radek

Re: upgrade 32bit aggr to 64bit

scottgelb — Thu, 21 Jun 2012 21:35:23 GMT

Qtree snapmirror or Ndmpcopy if not on 8.1. It might be worth waiting for your upgrade. Then you can upgrade in place by growing the aggr or volume snapmirror too 32 to 64.

Sent from my iPhone 4S

Re: upgrade 32bit aggr to 64bit

radek_kubka — Thu, 21 Jun 2012 21:54:06 GMT

I see I need to add a signature to my posts: "Send from my (awesome) Android phone" 🙂

Re: upgrade 32bit aggr to 64bit

scottgelb — Thu, 21 Jun 2012 22:09:37 GMT

Reply to the email notification on a thread and it is from email

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Re: upgrade 32bit aggr to 64bit

TDUBB1234 — Thu, 21 Jun 2012 23:19:05 GMT

what is besrt way to move my vnmware luns off this 32bit aggr to 64bit? create new 64bit aggr/vol/qtree/lun and svmotion the vms off the old luns or can i still use qtree snapmirror?

Re: upgrade 32bit aggr to 64bit

scottgelb — Thu, 21 Jun 2012 23:30:30 GMT

Storage VMotion would be a great way to do this...then you don't have downtime.

Re: upgrade 32bit aggr to 64bit

TDUBB1234 — Fri, 22 Jun 2012 04:00:34 GMT

how do i qtree snap mirror between 2 qtrees? i have 2 luns on 2 different aggr

Re: upgrade 32bit aggr to 64bit

scottgelb — Fri, 22 Jun 2012 05:01:41 GMT

QSM creates a qtree on the target volume for you.. So you can mirror any source qtree (or non qtree data by specifying /vol/volname/- ... the dash meaning non-qtree data as the source) and the target is always a qtree. You specify the source /vol/volname/qtree or "-" and the target /vol/volname/qtree.. the target volume can have multiple qtree mirrors if you want.

But if VMware and the goal is non-disruptive 32 to 64 bit (and not ontap 8.1) then storage vmotion sounds like a much better fit.

Re: upgrade 32bit aggr to 64bit

radek_kubka — Fri, 22 Jun 2012 10:27:44 GMT

Just bear in mind Storage VMotion is a host-side operation, so with large VMs may be problematic performance-wise.

Re: upgrade 32bit aggr to 64bit

fhauntsman — Thu, 28 Jun 2012 23:01:50 GMT

Hi, I just receive this document from support after searching and searching, great doc..

In-Place Expansion of 32-Bit Aggregates to 64-Bit

Overview and Best Practices

Link= http://media.netapp.com/documents/tr-3978.pdf

Enjoy and hope this helps

Re: upgrade 32bit aggr to 64bit

igalkatzir — Mon, 11 Mar 2013 14:09:08 GMT

Great Article indeed, the syntax from cli goes like this:

aggr add aggr_name -64bit-upgrade normal -n 2

This is when you want to add two disks to the aggr.

Igal

Re: upgrade 32bit aggr to 64bit

SHARMAMANISH — Tue, 04 Feb 2014 16:20:42 GMT

You Can do via a priv set diag command

aggr 64bit-upgrade start aggr1 -mode grow-all

Re: upgrade 32bit aggr to 64bit

aborzenkov — Wed, 05 Feb 2014 04:05:05 GMT

You should never use diag level command without explicit instructions from NetApp. Conversion to 64 bit (without adding disks and diag commands) is supported as of 8.2.1RC1.

Re: upgrade 32bit aggr to 64bit

scottgelb — Wed, 05 Feb 2014 04:50:41 GMT

Agree 100% with this. Not without support prior to 8.2.1. Unless a lab or test environment maybe. This was not supported until 8.2.1 even though hidden prior and carries risk without support.

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