kindred quest
https://github.com/NetApp/trident/blob/master/storage_drivers/ontap/ontap_nas_flexgroup.go#L440
When using ontap-nas-flexgroup, it needs to grow at least 4 member volumes on each aggregate,
Is there any place that can lower the number?
Since the minimum of a member vol is 100GB, and if there are 4 aggregates, it will need 1600GB.
hidden lily
That would be an ONTAP setting, so best to ask this question to the ontap channel. AFAIK 4 members is not configurable but worth asking ONTAP team.
kindred quest
@hidden lily The default number is not setting in Trident source code?
hidden lily
TR https://www.netapp.com/media/12385-tr4571.pdf, (pg 20 Tables 5&6).
Note the auto-provisioning section (pg 55) which selects all aggrs.
This is the method that ONTAP recommends customers use and is also what Trident is uses.
Trident v23.01 and higher, there is an optional backend parameter 'flexgroupAggregateList'. Otherwise trident will discover the aggr-list from the SVM.
Option 1. Change the number of aggregates assigned to the SVM (aggr-list) or create an SVM that is assigned fewer aggregates.
Option 2. Create the FGroup outside of Trident with the desired configuration and then import that FG into Trident.
I hope this is helpful.
any changes on the ONTAP side will require a tridentctl update backend to sync trident with ONTAP.