Effective December 3, NetApp adopts Microsoft’s Business-to-Customer (B2C) identity management to simplify and provide secure access to NetApp resources.For accounts that did not pre-register (prior to Dec 3), access to your NetApp data may take up to 1 hour as your legacy NSS ID is synchronized to the new B2C identity.To learn more, read the FAQ and watch the video.Need assistance? Complete this form and select “Registration Issue” as the Feedback Category.
With regards to your query regarding "Is 7-mode already end of life?" as you want to "extend the life of the V3250 to June 2021."
Ontap 8.2.5 7-mode, which is supported on the V3250 has End of Full Support (EOES) on 31-Dec-2020, but the End of Limited Support (EOVS) continues till 31-Dec-2022. So you should able to continue using this Ontap version till June 2021.
Definition of End of Limited Support (EOVS): The time period where NetApp provides partial support for a version of a software product, including Technical support, root cause analysis, documentation and software available online. Service Updates, maintenance and patch releases are not provided for versions under limited support.
- Earlier the IBM TSM version 7.1 and before, did not support SnapDiff backup with Clustered Data ONTAP Systems. - IBM later released a Cdot supported version. Hence, after TSM 7.1.2, Cdot was supported for SnapDiff Backup. - Customer has to use IBM TSM 8.1.4 which is compatible with ONTAP 9.3. Refer