topic Re: Cloned and parent volume are auto growing in Microsoft Virtualization Discussions

Cloned and parent volume are auto growing

Ramesh3 — Wed, 26 Aug 2020 23:13:44 GMT

Hi can some one help please its urgent
I have created volume clone
parent volume and cloned volume are growing like anything with out writing any data over there
i didnot see ant LUN growth no snapshot growth. even i tried spliting still eating volume space
please help

we have volume named hyperv_vol which is cloned named as hyperv_vol_clone
2 csv LUNs are created from hyperv_vol_clone and one from hyperv_vol
but hyperv_vol and hyperv_vol_clone are utilizing more aggregate space even though there is no data written on LUNs
I have splited volume from parent its strucking and middle and consuming more aggregate space

Re: Cloned and parent volume are auto growing

ttran — Thu, 27 Aug 2020 10:27:28 GMT

Hi Ramesh3,

In a volume split operation, any space savings in the parent volume is un-deduplicated first then copied to the clone. This also applies to data that is also compressed. Both of these will consume aggregate free space. Once the split is complete, the data on the clone can then re-deduplicated and re-compressed.

More information can be obtained here, specifically at the top of page 69: NetApp Data Compression, Deduplication, and Data Compaction

Regards,

Team NetApp

Re: Cloned and parent volume are auto growing

liu — Fri, 03 Jan 2025 09:07:21 GMT

you see deduplication, data compression, data compaction, and storage efficiency

Deduplication, data compression, data compaction, and storage efficiency

Enable data compression on the FlexVol volume to save space

Enable data compression on a volume