peace-keeping-villa8590 Posted July 7 Share Posted July 7 I will soon have a RM43-320-RS chassis. The backplane has 5 mini SAS connections and my HBA (LSISAS9300-16i) has 4 ports. This will be my first time using a backplane so I don't know how it will work. I'm assuming a second HBA (LSISAS9400-16I) for the 5th connection? Also, if one is a 9300 which doesn't work with NVME based storage and the other is a 9400 which does work with NVME storage and they're both connected to the same back plane, will that cause issues? Quote Link to comment
JorgeB Posted July 7 Share Posted July 7 Looks like the backplane doesn't have an expander, so yes, you need one wide port per connector, but you can just get an additional 9300-8i, 16i would be left with 3 unused ports, unless you have other use for them. 7 hours ago, peace-keeping-villa8590 said: Also, if one is a 9300 which doesn't work with NVME based storage and the other is a 9400 which does work with NVME storage and they're both connected to the same back plane, will that cause issues? You can get a tri-mode HBA and use one port for the backplane and the other(s) for NVMe, but note that they require specific Broadcom cables to work with NVMe devices. Quote Link to comment
peace-keeping-villa8590 Posted July 7 Author Share Posted July 7 7 hours ago, JorgeB said: Looks like the backplane doesn't have an expander, so yes, you need one wide port per connector, but you can just get an additional 9300-8i, 16i would be left with 3 unused ports, unless you have other use for them. So it appears that each SAS connection connects 4 drives across a row (laterally). So each row the 9400 is attached to will have NVME support. For some reason, I was thinking that all the drives were somehow linked together and would cause issues. It appears that each row of 4 drives are independent. 8 hours ago, JorgeB said: You can get a tri-mode HBA and use one port for the backplane and the other(s) for NVMe, but note that they require specific Broadcom cables to work with NVMe devices. Are special cables required just for the tri-mode HBA or does the 9400 require the special cables as well? Quote Link to comment
peace-keeping-villa8590 Posted July 9 Author Share Posted July 9 Does anyone make SFF-8643 to SFF-8643 tri-mode cables? Quote Link to comment
JorgeB Posted July 9 Share Posted July 9 Not sure what you mean, all SFF-8643 to 8643 should be the same Quote Link to comment
peace-keeping-villa8590 Posted July 10 Author Share Posted July 10 If I want to use NVME drives, what cables will I need to attach a Lenovo 430-16i/LSI 9400-16i to this chassis' backplane? I not familiar with tri-mode HBA's. Quote Link to comment
JorgeB Posted July 10 Share Posted July 10 AFAIK you cannot use NVMe devices with that backplane, you'd need to have them outside. Quote Link to comment
peace-keeping-villa8590 Posted July 12 Author Share Posted July 12 On 7/10/2024 at 1:21 AM, JorgeB said: AFAIK you cannot use NVMe devices with that backplane, you'd need to have them outside. Thanks Quote Link to comment
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