Fujitsu AX/HX SnapDiff configuration prerequisites
On the clustered Data ONTAP SnapDiff RPC API V2 is supported from ONTAP release 9.4 onwards till ONTAP 9.9.
You must enable the SnapDiff RPC service on the SVM. Follow the steps:
controller> vserver snapdiff-rpc-server on <svm_name>
For more information on the latest and accurate methods to enable snapdiff-rpc-server refer to the Fujitsu AX/HX documentation.
To improve performance while fetching the SnapDiff data between two snapshots, max_diffs and max_sessions must be set on the filer.
By default, SnapDiff RPC API V2 max_diff is set to 256 and max_sessions are set to 16.
The max limit for max_diff is 4096 and max_sessions is 64.
Procedure:
Set max_diff limit to 4096
controller> node run -node * options replication.spinnp.snapdiff.max_diffs 4096
Set max_session limit to 64
controller> node run -node * options replication.spinnp.snapdiff.max_sessions 64
For more information on the latest and accurate methods to set max_diffs/max_sessions, refer to the Fujitsu AX/HX documentation.