Management network separate to iSCSI network

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box293
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Management network separate to iSCSI network

Postby box293 » Thu Aug 25, 2016 1:16 am

I am going to buy a DS1815+ soon, I've never used a Synology device in the past so I'm reading the manuals and documentation to understand how it all works. I've had experience in the past with some other enterprise iSCSI SAN's so I understand how all the backend technology works.

I am going to be using the DS1815+ as a dedicated iSCSI SAN for some ESXi servers to connect to. It will be connected to an isolated gigabit switch just for iSCSI traffic. I would like to still have the device connected to my management network for administrative / monitoring.

I was reading this information:
https://www.synology.com/en-global/knowledgebase/DSM/help/DSM/AdminCenter/connection_network_linkaggr

Can you confirm that I can do the following:
LAN 1 interface
Stand alone interface connected to my management network switch
Has the IP 10.25.88.8/16.
Will be used to log in to the device to administer it and query it via SNMP

LAN 2, 3, 4 interfaces
These three interfaces will be connected to the isolated gigabit switch just for iSCSI traffic
Create a Link Aggregation bonded interface with the IP 192.168.10.10/24
The ESXi servers will also be connected to this switch so they can access the volumes via iSCSI
MTU will be set to 9000

I suspect all of this will work, just asking as I don't actually have a device to play with and I want to understand it all before I buy it.
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syno.dustin
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Re: Management network separate to iSCSI network

Postby syno.dustin » Thu Aug 25, 2016 10:13 pm

Don't use link aggregation.
Use MPIO: https://www.synology.com/en-us/knowledg ... th_Support
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box293
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Re: Management network separate to iSCSI network

Postby box293 » Thu Aug 25, 2016 10:39 pm

Thanks for the reply.

The article you referenced doesn't go into too much detail in relation to the Synology configuration, specifically using multiple interfaces.

I did some searching and found this blog and it explains in more detail:

https://frankstechsupport.com/2014/07/25/how-to-set-up-vmware-esxi-a-synology-iscsi-nas-and-activeactive-mpio/

This confirms what you are talking about, thanks for the information.

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