You can chain the MD units together. I show that you can chain up to four MD units per connector. It appears the H830 has a single connector, so you should be able to connect four MD units to it. I think there is an external HBA supported on the R730XD that has two connectors. You would be able to attach eight MD units to that controller. You should be able to locate more information on the MD1420 support page and the controller support page.
Daniel My
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March 20th, 2019 12:00
Hello
You can chain the MD units together. I show that you can chain up to four MD units per connector. It appears the H830 has a single connector, so you should be able to connect four MD units to it. I think there is an external HBA supported on the R730XD that has two connectors. You would be able to attach eight MD units to that controller. You should be able to locate more information on the MD1420 support page and the controller support page.
http://www.dell.com/support/
http://www.dell.com/storagecontrollermanuals/
Thanks