It's been sometime I haven't used this tool, especially in 9.x releases. Thanks for mentioning it, I didn't know that the tool was no longer supported. May be b'cos perfstat is now built into the ONTAP, it may just be made redundant.
I came across this KB, that states: Beginning with clustered Data ONTAP 8.3, performance content is collected and stored ('archived') on every system by default. This content is built on top of a new functionality in Data ONTAP, which automatically stores Quality of Service performance statistics on a per-volume basis for diagnostic purposes for up to 28 days on each clustered Data ONTAP node.
Thanks for the tip for perf archive, I will check that ASAP. Yes I know perfstat is legacy, but when you're experienced with it, you can find everything with it 🙂
Still my question remains, will perfstat work with 9.6-9.7 (with possible issues like possible missing fields etc)? I don't see any reason why it wouldn't, but in case somebody has any experience at all running it with >9.6 please let me know.
OK correct me if I'm wrong. Perf archive is for sending performance information to NetApp support, not to make troubleshooting by yourself.
As an experienced perfstat analyzer I'm used to check minor issues myself. Like customer says "I have frequent performance issue with my volume everyday 8 AM" .So I'll launch perfstat so it gathers 7:30-8:30 with 10 min iteration and so on. I understood that with perf archive you will create a performance case and use the tool to upload data to NetApp.