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07-08-2019 08:45 AM
07-08-2019 08:45 AM
Hi all,
new Nimble customer here looking for some advice regarding network setup for our new HF40 array with 2x2 10GbE ports. Currently we deployed a first network setup like this:
Management subnet: eth0a
iSCSI subnet: eth0b
As you can see, each subnet only has one uplink per controller, so pulling a cable or restarting the switch where the active controller is uplinked leads to immediate controller failover.
We're wondering if it's possible to setup the management subnet and the iSCSI subnet as tagged VLANs that are both carried over eth0a and eth0b, as that promises redundancy. Also it seems like a big waste to only run the management traffic (no group setup here) over a 10GbE link
Regards,
Peter
Solved! Go to Solution.
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07-08-2019 09:10 AM
07-08-2019 09:10 AM
SolutionHi!,
You definitely need dual paths per network, per controller - otherwise you're architecting for multiple Single Points of Failure.
You have onboard ports to use as well (2 per controller, and are 10Gb/1Gb); typically users assign the management traffic to those ports, bonded across a pair of mgmt switches. Is that something you could look to do?
Alternatively, yes it's entirely possible to create VLANs for both management and iSCSI data subnets to reside on the same physical ports.
Take a look at Infosight, there are a few networking guides there, as well as a hardware guide which details this.
twitter: @nick_dyer_
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07-08-2019 09:25 AM
07-08-2019 09:25 AM
Re: Network redundancy with HF40 2x2 10GbE ports
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07-09-2019 02:14 AM
07-09-2019 02:14 AM
Re: Network redundancy with HF40 2x2 10GbE ports
Hi
you can share management and data ports
below is an output from a Nimble HF20
Nimble OS $ netconfig --info active
Group Management IP: 172.30.10.50
Group leader array: XXXXXXX
Member array(s): XXXXXXX
ISCSI Automatic connection method: Yes
ISCSI Connection rebalancing : Yes
Routes:
---------------+---------------+---------------
Destination Netmask Gateway
---------------+---------------+---------------
0.0.0.0 0.0.0.0 172.30.10.1
Subnets:
------------------------+------------------+---------+---------------+----+-----
Label Network Type Discovery IP VLAN MTU
------------------------+------------------+---------+---------------+----+-----
ISCSI 172.24.0.0/24 Data 172.24.0.9 100 1500
MGMT 172.30.10.0/24 Mgmt 172.30.10.50 10 1500
Array Network Configuration: XXXXXX
Controller A IP: 172.30.10.51
Controller B IP: 172.30.10.52
---------+------------------------+---------------+------
NIC Subnet Label Data IP Address Tagged
---------+------------------------+---------------+------
eth0a.100 ISCSI 172.24.0.24 Yes
eth0a.10 MGMT N/A Yes
eth0b.100 ISCSI 172.24.0.14 Yes
eth0b.10 MGMT N/A Yes
Regards
give a KUDO if this helps
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07-09-2019 06:25 AM
07-09-2019 06:25 AM
Re: Network redundancy with HF40 2x2 10GbE ports
Thanks @giladzzz and @Nick_Dyer , it worked flawlessly