#Ontap Upgrade

1 messages · Page 1 of 1 (latest)

sudden vector
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Hi All
I am very new to the world of netapp and any storages. I would like to get your expert suggestions on a topic.
I have 2 node AFF-A250 cluster running on ONTAP NetApp Release 9.10.1P10.
I would like to upgrade it to the version 9.14.1P11.
I have performed updates on netapps with a bit newer versions than this and those were all serving NFS volumes.

This particular cluster is serving iscsi, and I could see the LIFs failover policy is disabled and when I read about it, it is supposed ot be like that and the clients has to do the multipathing on their end.
REF https://kb.netapp.com/on-prem/ontap/da/SAN/SAN-KBs/Why_can_t_we_enable_automatic_failover_for_ISCSI_SAN_lifs

Also this version is affected by https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/PANIC__page_fault_supervisor_read_data_page_not_present_on_VA_0x20_in_process_mlogd
So I will be updating the cluster to a minor version which has a fix for this, then upgrading to the 9.14.x

So this is my plan to do the upgrade

I have taken the list of iscsi initiators using #iscsi initiator show -fields igroup,initiator-name,tpgroup, to see how it looks after the upgrade.

  1. I will upgrade the cluster to 9.10.1P18
  2. once both the nodes are upgraded I will go ahead and upgrade it to 9.14.1P11

Is there anything else I should be taking care in this situation?

NetApp Knowledge Base
Why can't we enable automatic failover for ISCSI SAN lifs?
NetApp Knowledge Base
PANIC: page fault (supervisor read data, page not present) on VA 0x...

This article provides guidance for when ONTAP 9 node  encounter 'Page Fault (Supervisor Read Data, Page Not Present)' Panic during Shutdown or Takeover in ANDU Process

bold geyser
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You should confirm first that every host has paths to both nodes. You can check that via System Manager if you have an igroup with initiators which only have connections to LIFs on one node.

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Usually I ask my customers: When was the last takeover/giveback on this cluster? (either manually or automatic) Did you have any downtime? Has anyone complained? If not (and nothing changed since then which you can't be sure everytime) you're usually fine.

But updating to P-latest in the same version is definitely right.

sudden vector
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Thank you so much for the input.
I have confirmed with the user team that they have multipath enabled to the 2 nodes

bold geyser
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Usually I upgrade all the firmware a day before so that is not needed especially when you're doing several ONTAP-updates.