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Replacing 8g Brocade SAN Switch with 16G which has ISL connection
Hi Support,
we have 2 Data centers(DC1 and DC2) the ISL is connected between DC1(16G-SAN Switch) << to>> DC2 (8G-SAN Switch), now i want to replace 8G Switch with 16G.
ON DC2 8G SAN Switch got another 2 Switches connected (via ISL). The same setup at Fabric A and Fabric B.
i am planning to add 16G SAN Switch at Fabric B first, if i replace 8g with 16G will it effect other 2 SAN Switches connected?
may i know the best practice to do this?
DELL-Sam L
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June 29th, 2023 01:00
Hello santhumax,
If you have all configured with your 16gb switch as your 8gb switch all should be fine. As always make sure that all host & storage are failed over to other fabric and then fail back one at a time to ensure that connections are good and stable. If you have any connections that fail, then you may need to reregister them.
DELL-Sam L
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June 29th, 2023 01:00
Hello santhumax,
It is best to open a support case for this as we will need to gather additional information in order to provide you the most accurate steps for doing your switch upgrade.
santhumax
17 Posts
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June 29th, 2023 01:00
Hi Sam,
thanks for the response,
what might go wrong here if i swap the ISL cables from the 8G Switch to new 16G Switch?
i have already configured the 16G new Switch same as existing 8G switch. (ISL Ports, switch settings, trunking etc)
Regards,
Santhosh
santhumax
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June 30th, 2023 02:00
Hi Sam,
was just something before perfuming the activity and just realised the 8G Switch which connected to another DC via ISL has Domain ID 1. if i disconnect the ISL before i swap to 16G switch will it affect the fabric in anyway?
Regards,
Santhosh
DELL-Sam L
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June 30th, 2023 08:00
Hello santhumax,
If you don’t have a second fabric then yes your DC will be affected.
santhumax
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July 13th, 2023 01:00
Hi Sam,
Good Morning,
Yesterday i tried to SWAP the ISL Cable from 8G Switch to 16G Switch in Fabric B, but swaping all 5 Ports on the 16G Switch i don't see an ISL link between the DC's .
This was a unexpected surprice, i configured all the ISL ports same as on the DC 16G Switch and i am not really sure what went wrong.
THen i roll back the ISL Ports back to 8G Switch.
i have added a screen shot of BNA logs, see if you find any missing peace.
Thanks,
Santhosh
DELL-Sam L
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July 13th, 2023 05:00
Hello santhumax,
What needs be done at this point, is to review the switch logs from both switches and see what is going on. Now if your switches were under a support contract then this would be done by opening a support case. Since your switches are not under a support contract, then you have a choice to either review them on your own or pay the out of support fee for tech support to review them and let you know what is wrong.