Question about backplane to HBA


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I am new to mini-SAS and such and the backplane on the supermicro chassis I have has 2 mini-SAS ports. If I read correctly, they both have access to all 12 drive bays, correct? And I have also read that the IBM M1015 HBA card I bought has 2 mini-SAS connections, and each one only takes in 4 drives? So after more research I found that I would need a SAS expander. I was looking at the HP SAS Expander. I read that it supports up to 24 or 36 drives (don't quite remember but either of those numbers is at least double what I need) but also that each port on the card only takes in 4 drives. If all of this is true, how do I access all 12 od the drives from the backplane if there are only 2 mini-SAS ports? 

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1 minute ago, johnnie.black said:

There's a pinned thread about crossflashing on the Storage subforum.

 

PS. it's also possible the backplane you bought is limited to 2TB.

Just flashed. All good! Thanks. It Also does appear to be an extender since I plugged in more drives and they show up! YESjhLc.png

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