The transition to NetApp MS Azure AD B2C is complete. If you missed the pre-registration, you will be invited to reigister at next log in.
Please note that access to your NetApp data may take up to 1 hour.
To learn more, read the FAQ and watch the video.
Need assistance? Complete this form and select “Registration Issue” as the Feedback Category.

Software Development Kit (SDK) and API Discussions

perf-object-get-instances counter rollovers


Could the API documentation for perf-object-get-instances cover the proper handling of counter rollovers?


Some high-rate-of-change counters (e.g. system:system:disk_data_read, system:system:disk_data_write) are highly susceptible to rollover, and naive implementation of the SDK will result in some negative rates. At least for those, a negative value is nonsense, but I don't see where this assumption could be generalized.


Would it be correct that counters are always positively incrementing, in which case "Raw(T0) > Raw(T1)" would be sufficient? If not, is there a subset of counters (e.g. properties "rate" or "average") that could be expected to always be positive?

NetApp on Discord Image

We're on Discord, are you?

Live Chat, Watch Parties, and More!

Explore Banner

Meet Explore, NetApp’s digital sales platform

Engage digitally throughout the sales process, from product discovery to configuration, and handle all your post-purchase needs.

NetApp Insights to Action
I2A Banner