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ME5 Direct Attached
Hey guys, I'm not sure how to connect and define the iSCSI IPs in a scenario with 2 hosts with 2 ports each, directly connected to the ME5.
In the deployment guide (https://dl.dell.com/content/manual51896558-dell-powervault-me5-series-storage-system-deployment-guide.pdf?language=en-us), it shows the following information for connecting the Storage in Direct Atacched mode with 2 hosts (page 34):
Host 1 - Port 0 > Controller A port 0
Host 1 - Port 1 > Controller B port 0
Host 2 - Port 0 > Controller A port 2
Host 2 - Port 1 > Controller B port 2
In the example of IP addresses for iSCSI, in the deployment guide it shows as follows (page 31 and 55):
Host 1 - Port 0 > ip on subnet 1
Host 1 - Port 1 > ip on subnet 2
Host 2 - Port 0 > ip on subnet 1
Host 2 - Port 1 > ip on subnet 2
But for the Storage ports, both ports 0 and 2 of controller A, and ports 0 and 2 of controller B are in the same subnet (subnet 1).
Searching a little more, I found a Best Practices document (https://infohub.delltechnologies.com/l/dell-powervault-me5-series-vmware-vsphere-best-practices/direct-attached-storage-14), in it the connection of the servers with the storage are on different ports, as an example the first server from bottom to top is as follows:
Host 1 - Port 0 > Controller A port 0
Host 1 - Port 1 > Controller B port 3
That way, a port for each host would be in a different subnet, following the configuration suggested in the deployment guide.
There is the doubt, which of the 2 ways should I follow to deploy this storage?
If I follow the Deployment Guide's connection model, I'll need to put the hosts' IPs all on the same subnet, both port 0 and port 1. If I follow the best practices manual procedure I'll have each host port in one different subnet, thus following the most common way when we deploy using switch attached.
I thank you all. (Sorry for the English by Google Translator).
DELL-Joey C
Moderator
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May 2nd, 2023 20:00
Hi @David Modesto,
Both guides are correct, it only depends on the administrator's preference to how it needs to be cabled.
For a better easy installation, you can follow the first guide you have attached: https://dell.to/3Vt30Xd
Origin3k
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May 2nd, 2023 23:00
Iam in hurry .... and i cant help at first but i totally under stand the virutal question mark @David Modesto have. I think the documention isnt as good as it should because of
From the Joe User perspective i always think its hard to follow the documention when controller modules named A/B or 0/1 because i always think is there also a 1+2 out there? The we have to turn one controller on 180° to fit it into the chassis is also a way to make easy cabling failures But hey.. if you have luck they print labels on twice so you can read them in the normal way.
@David Modesto
what ever it takes .... you need the Dual Subnet (Non-Bindung) setup from the ESXi host perspective.
Regards,
Joerg