https://community.netapp.com/t5/ONTAP-Discussions/Giveback-aggregates-failed/m-p/455351#M43986 <P>Hello.<BR />When I upgraded the ONTAP version, the aggregation failed after "Giveback". Later, I learned that it was because there were connected sessions in CIFS. After running storage failover giveback-ofnode node_name - overline-vetoes true, the toes are successfully pooled and returned. However, the system prompts that this command will cause data loss.<BR />How can I avoid aggregation failure in the next upgrade?</P> Tue, 24 Sep 2024 12:39:16 GMT weiliu 2024-09-24T12:39:16Z https://community.netapp.com/t5/ONTAP-Discussions/Giveback-aggregates-failed/m-p/455351#M43986 <P>Hello.<BR />When I upgraded the ONTAP version, the aggregation failed after "Giveback". Later, I learned that it was because there were connected sessions in CIFS. After running storage failover giveback-ofnode node_name - overline-vetoes true, the toes are successfully pooled and returned. However, the system prompts that this command will cause data loss.<BR />How can I avoid aggregation failure in the next upgrade?</P> Tue, 24 Sep 2024 12:39:16 GMT https://community.netapp.com/t5/ONTAP-Discussions/Giveback-aggregates-failed/m-p/455351#M43986 weiliu 2024-09-24T12:39:16Z https://community.netapp.com/t5/ONTAP-Discussions/Giveback-aggregates-failed/m-p/455362#M43988 <UL><LI>CIFS is a stateful protocol because it maintains session information and context between client and server during a connection.</LI><LI>During a giveback operation if there are any active CIFS sessions, giveback operation for the associated aggregates wont happen.</LI><LI>We might see an error similar to the below one while running storage failover show on storage CLI.</LI></UL><P class="lia-indent-padding-left-60px"><STRONG>Giveback of one or more SFO aggregates failed</STRONG></P><P class="lia-indent-padding-left-60px">&nbsp;</P><UL><LI>To prevent this from happening, we must make sure that the ONTAP upgrade is being performed during a maintenance window where none of the CIFS clients are connect to the storage.</LI><LI>Before the start of the upgrade activity run a <FONT face="courier new,courier">cifs session show</FONT> to check if there are any connect clients. if yes, run a <FONT face="courier new,courier">cifs session close</FONT> against those clients to close active sessions.</LI></UL><P><STRONG>Related links:&nbsp;</STRONG></P><UL><LI><A href="https://docs.netapp.com/us-en/ontap-cli/vserver-cifs-session-show.html" target="_blank">https://docs.netapp.com/us-en/ontap-cli/vserver-cifs-session-show.html</A></LI><LI><A href="https://docs.netapp.com/us-en/ontap-cli-9131/vserver-cifs-session-close.html#description" target="_blank">https://docs.netapp.com/us-en/ontap-cli-9131/vserver-cifs-session-close.html#description</A></LI></UL> Tue, 24 Sep 2024 14:21:16 GMT https://community.netapp.com/t5/ONTAP-Discussions/Giveback-aggregates-failed/m-p/455362#M43988 ChLokesh 2024-09-24T14:21:16Z