Error Protocol in the package received from the initiator

I have a Windows 2008 R2 virtual machine connected to a PS of the Group (6210xs and 6000). I have 4 volumes iscsi LUNS for Windows data, two on the 6210 and two on the 6000. The vm is on the 6210. We have implemented the 6210 back towards the beginning of the year, and all volumes of data have been implemented with MPIO 5 or 6 months ago.

This morning, one of the 2 data on the 6210 disappeared. Windows Disk Mgmt did not show it online or offline, but the windows iscsi initiator showed as connected LUNs. I disconnected the lun and reconnected and immediately handed volume online and has been fully accessible. The monitor EQ had a message to info about the disconnect with "error Protocol in the package received from the initiator" at the end of the message. 2 seconds later, the logical unit number reconnected.

It sounds like a problem with the initiator of windows rather than a problem of EQ, but I thought I'd check here in any case. It is interesting that it happened only to 1 volume of 4. This volume has been connected since May with no problems until today, and I do not have no changes to configuration since May. Are both the vNIC multichannel vmxnet3 with all the same settings (jumbo frames enabled, unloading of the disabled, numbers for Rx rings, etc.)

Any ideas on all the settings should I check or change, especially with the network cards for?  I'll probably post this on technet, too.

Thank you.

Tim

Hello

The problem with iSCSI optimization is that it keeps track of connections.  However, the table moves periodically as you have noticed, the connections.  The switch fw does not understand that.  With each stroke he follows the new session and retains the old.   The buffer allocated for it is rather low.  According to FW versions on the switches, this could be as little as 256 connections.  Over time, this buffer is overrun.  The older of the switch that made to block any new connection iSCSI on port 3260.   So turn it off is the best option.

Re: trunk. In general the ISCSI traffic is burst, so when you look at the history of the traffic it appears wrong, because he gets on average over time.  So, I would add at least two additional ports to be sure.

Kind regards

Don

Tags: Dell Products

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