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JS

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March 5th, 2020 15:00

Best Failover for Force10 S4820T & Servers/iSCSI

Installing a couple of Force10 S4820T's and would like a bit of advice before installing them.

Switches setup as stacked with the 40gig ports 52-->60, with proper cables

Vlan 1 (LAN) no modifications yet, all servers LAN connections will go here - i'll assume i'll have to add the ports 0-23 to it and set switchport & no shutdown

Vlan 2 (iSCSI) ports 24-47 (untagged, switchport, no shutdown) all server iscsi connections will be here (eql ps4210)

Looking for redundancy/fail over, and on the vlan 2 ports do i need to do anything for Jumbo Packet 9014 etc

TIA

Jim..

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8.7K Posts

March 6th, 2020 07:00

Hi,

Which OS version are you using? Page 805 shows how to set the mtu for the port https://dell.to/39uwxXD Page 998 has some other iscsi optimizations that you may want to use.

24 Posts

March 6th, 2020 09:00

OS: 9.2(0.2) My plan is to connect servers to switch ports 24-45 and ps4210 to switch ports 46-47 (on each s4820), Dell set the Jumbo frames to 9014 on the server side so I'm assuming I have to set the mtu to 9014 on ports 24-47 (or 45). New to bests practices for iscsi and vlans so bear with me Also is there no web interface for these switches? TIA Jim..

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8.7K Posts

March 6th, 2020 09:00

It is CLI only.

24 Posts

March 6th, 2020 10:00

ok, qwk question: Is it MTU 9014 or IP MTU 9014?

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8.7K Posts

March 6th, 2020 11:00

Mtu 9014. Page 586 https://dell.to/32U2hmz

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8.7K Posts

March 6th, 2020 13:00

9.14.1.8.9.2 is newer. The way we number is a little confusing, it is nine dot fourteen.

24 Posts

March 6th, 2020 13:00

I logged into the support site and was attempting to see what is the most current OS for S4820T. My current is 9.2(0.2) and site shows 9.14.1.8. 9.2 isn't even listed, so which is the newer?

24 Posts

March 9th, 2020 14:00

I'm having problems upgrading the firmware, I've downloaded every version of ftos & both bootcodes

tried via usbflash: & tftp: & copied to flash: and still won't

Command: upgrade system usbflash: A: (or B or stack) 

Prompt for filename: FTOS-SE.9.3.0.1.bin

Results: "Failed to open the source file to read"

I got to be missing something simple here, ideas?

TIA

Jim..

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19 Posts

March 9th, 2020 15:00

Jim, Can you please provide the filename that you are utilizing as well as the commands you are employing when using the USB method? -John M #IWork4Dell

24 Posts

March 10th, 2020 11:00

I got thru it eventually , needed the 'do' in conf mode etc. so now I'm current with FTOS 9.14.1.8, U-boot.1.2.05. Now after watching it reboot I see a new error: SmartScripts.... I'm browsing the Force10 site for the correct version for my model, looks like SMARTSCRIPTS-P-9.14.1.0.tar.gz is the correct 1

24 Posts

March 10th, 2020 13:00

Oh well, smartscripts don't install of course, I'm guessing I don't really need. now for the ISCSI stuff, anyone got some good suggestions or shall I just test as is for now. TIA Jim..
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