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December 22nd, 2023 16:30

Dell Power Store T dedicated ports

HI

I have this new storage and soon we would put it in production but I would have a question here

I will go with iSCSi connections but I would likie to know on this diagram are these ports dedicated for example on Powerstore T we have one IO module on each node so basically I would connect port 2 on one switch in one node and then again port 2 on another switch on second nodes

Are these ports dedicated for type of network we are going to use in this case is iSCSI connection. Wer will use this storage only as block storage no NAS capability.

What I can get from this document is that port 2 is dedicated for iSCSI and replication and no other port can be used for iSCSI trafic

https://www.dell.com/support/manuals/en-us/powerstore-1000t/pwrstrt-ntwkg/sample-configuration?guid=guid-de12a12b-225d-4ee7-aa57-d4e0dfe137e9&lang=en-us

Or this is just an example any port can be used for any type of traffic.

My conslusion is that only port 2 should be used for replication traffic.

Can we for example bond this port for example with port 3 if we are not using NAS traffic.

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December 28th, 2023 13:52

4 should be good, it depends on the amount of traffic to each one. 

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December 26th, 2023 14:22

Hi,

Thanks for your question.

You should be able to bond if not using NAS traffic. https://dell.to/41yGajT

Let us know if you have any additional questions.

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December 27th, 2023 15:50

I have this diagram from this document

https://infohub.delltechnologies.com/l/design-guide-vmware-vsphere-with-powerstore-storage-1/storage-design-44/

If we are going with fiber channel network then this makes complete sense

Should we use the same analogy with iSCSI network instead of FIber channel zones it should be vLAN in ethernet networks

Have 2 ports on each node connected to ethernet switches on IO modules. 

For example same thing for iSCSI just instead of FC zones it is VLAN

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December 27th, 2023 15:52

Or simply do this

https://www.dell.com/support/manuals/en-us/powerstore-1200t/pwrstrt-ntwkg/cable-the-iscsi-and-replication-and-import-networks?guid=guid-f91f8bf2-1817-4f0d-b988-3d850211db1f&lang=en-us

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December 27th, 2023 16:05

Either way should work.

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December 27th, 2023 17:30

HI

Thanks for clarifying this 

SO i would like to do something like this

Not sure if port from one Node can be bonded with the same port on another node I hope it can

Just last question my colleague also mapped network that we have in this case named iSCSI to 4 port card on ports 1 and 2 that is used for cluster

Is this for management purposes I would assume traffic is not going through cluster network but it is just for management purposes

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December 27th, 2023 17:42

Page 8 https://dell.to/3H3v6l6 explains the cluster network. 

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December 27th, 2023 18:51

That makes sense as I figured that Cluster network just manages network but doesnt have anything to do with IO traffic

Last question would be with Multipathing. Dell documentation says that for ESXi host it should have at least 2 paths to LUN and maximum of 8 and not more than 8

What would be optimal number of IO paths I would for example configure 4 paths to each LUN. Not sure if there is preferred number my guess would be 4 paths would be optimal

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December 28th, 2023 15:41

Hi Josh

Thanks a lot for your guidance.

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