topic Re: Flexclone Space Aggregate Give Back in ONTAP Discussions

Flexclone Space Aggregate Give Back

darraghos — Thu, 05 Jun 2025 05:41:24 GMT

Hi guys,

My question is around the space in an aggregate. Consider the following over simplified example:

A single 100 Gb volume in a 200 GB aggregate
A single LUN of 50 Gb in that volume, thick provisioned

So:

Volume has 50 GB Free
Aggregate has 100 GBFree

Now, I create a flex-clone of the volume and write 50 Gb into it. So:

Volume has 50 GB Free and a snapshot (assuming now rites to original LUN)
Aggregate has 50GB Free

Now, when I delete the flex-clone, should i see that 50GB immediately returned to the Aggregate?

Re: Flexclone Space Aggregate Give Back

HARI_KRISHNA981 — Sat, 08 Mar 2014 12:09:45 GMT

Hi Darraghos,

Have a look at this link, it may help you

https://library.netapp.com/ecmdocs/ECMP1196986/html/GUID-868B8B03-C353-4296-B1FC-30AE8154AB87.html

Regards,

Hari

Re: Flexclone Space Aggregate Give Back

darraghos — Sat, 08 Mar 2014 16:53:47 GMT

HI, thanks for the reply. My question though is will I see the space returned to the aggregate immediately i.e. are the blocks returned to the aggregate free space immediately or on a schedule?

Re: Flexclone Space Aggregate Give Back

HARI_KRISHNA981 — Mon, 10 Mar 2014 10:15:16 GMT

Hi darraghos,

Unfortunately, it may not be returned immediately as it depends on several factors like load,amount of space.

Regards,

Hari.

Re: Flexclone Space Aggregate Give Back

darraghos — Mon, 10 Mar 2014 10:20:23 GMT

Thanks Hari, I think the load on the CPU might be my problem. CPU generally at 80% on a 2 CPU filer. Is there a way top monitor the give back?