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Netapp iSCSI LUN not usable when MTU is set to 9000 (Jumbo Frames) (Doc ID 2678111.1)

Last updated on JUNE 06, 2020

Applies to:

Solaris Operating System - Version 10 1/13 U11 and later
Information in this document applies to any platform.
REF: How to set MTU (Maximum Transmission Unit) size for interfaces (network interfaces) (Doc ID 1017799.1)

Symptoms

A 5TB Netapp iSCSI LUN is visible in format when using 1gb NIC but when using 10gb NIC format, iscsiadm and dladm commands hang.

A truss on "dladm show-dev" showed the following:





Changes

 Our customer had recently changed to a new network, and went from using 1gb NIC cards to 10gb NIC cards

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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