inline data compaction and existing data

[ACHOU_SIMG]

Hi,

ONTAP 9.1RC1

I plan to enable inline data compaction but the volume already has large amuont of data. Does data compaction act on the existing data?

Thanks,

[radek_kubka]

It is inline process, activated whilst data is being written to the storage system, so will have no effect on already stored data:

http://community.netapp.com/t5/Tech-OnTap-Articles/A-Look-Inside-NetApp-Inline-Data-Compaction/ta-p/122362

[radek_kubka · Accepted solution]

Okay, turns out, with ONTAP 9.1 this command (in advanced privilege) will compact existing data:

cluster::*> volume efficiency start -vserver <svm> -volume <volume> -scan-old-data true -compaction true