MSA : Inbound Errors

HP MSA 2040 

Now according to here : MTU is 8872 ( 8900 ) no 8972 ( 9000 )

Make sure this is enabled on the SAN

Extreme Summit Switch x460 Jumbo Frames

#enable jump frames on all ports https://gtacknowledge.extremenetworks.com/articles/How_To/How-to-enable-jumbo-frames

enable jumbo-frame ports all

#list all ports in use to get port numbers

show port utilization

#check MTU of each port to make sure Jumbo:  Enabled, MTU= 9216

show port <#> info detail

Server 2012 R2 Core Hyper v

OK we have an iSCSI Adapter on the server called iSCSI1, the below should come up with a reply if working

ping <IP OF iSCSI SAN> -f -l 8972 

If not lets recheck all settings : First lets get the Make of the adapter :

Get-NetAdapter

We want to list all the properties for network card

Get-NetAdapterAdvancedProperty -Name iSCSI1

Check the JumboPacket is 9014 and is enabled

Set-NetAdapterAdvancedProperty -Name “ISCSI” -RegistryKeyword “*JumboPacket” -Registryvalue 9014

Lets also set via Netsh, first lets list current MTU : 

netsh interface ipv4 show interface

Lets change adapter

netsh interface ipv4 set subinterface “iSCSI1” mtu=8900 store=persistent