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Raid controller doesnt see expander

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  • NAS / RAID
  • Controller
  • Storage
Last response: in Storage
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December 23, 2011 3:06:49 PM

Hello,
My Intel RT3WB080 RAID controller says it supports port expanders, but when I plug in a CFI-B53PM 5 Port Backplane (SiI3726), the controller only reports one drive.

I have tried lots of options in the RAID BIOS pre-boot command tool and commands like -pdGetNum -a0 only find one drive. A cheapo Adaptec controller that doesn't have all of the features I need and doesn't work with more than two controllers in the motherboard at once sees all five drives just fine. Where can I go for help?

Thanks,
Daniel

More about : raid controller doesnt expander

a c 316 G Storage
December 23, 2011 4:24:52 PM

Unless someone here has experience with that particular board, can you contact your vendor or Intel for support?
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a c 78 G Storage
December 23, 2011 10:03:49 PM

LOL!

That is a SAS controller, it needs a SAS expander, not Port Multiplier
the cost of SAS expander range about $280~ $350.00/ea
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Related resources
a c 316 G Storage
December 27, 2011 12:30:08 PM

FireWire2

I had looked that up and seen that it is a SAS controller. But SAS controllers can control SATA drives, yes? So they are compatible with the drives but not the multipliers? I had no idea.
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a c 78 G Storage
January 5, 2012 4:01:43 PM

WyomingKnott said:
FireWire2

I had looked that up and seen that it is a SAS controller. But SAS controllers can control SATA drives, yes? So they are compatible with the drives but not the multipliers? I had no idea.


Yes, SAS controller will work with SATA drive, but it DOES NOT Support Port Multiplier (PM Ware)

To expand, it has to use SAS expander, not PM
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November 20, 2012 11:28:27 PM

Support chips sil3124|3132 controllers, other not support.
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a c 78 G Storage
November 25, 2012 5:11:32 AM

Promobit said:
Support chips sil3124|3132 controllers, other not support.

Not quite right!
Marvell 88SE9128/9120/9125/88SE9130/Marvell 88SE9220/9230/9235/9215 they all suport PM
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!