PCI-E 3.0 x8 M1015 w/RES2SV240

cbarbie

Member
Mar 10, 2011
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US-VA
Hello

I currently have a M1015 running 8 drives. I would like to add an Expander to run additional drives (20 total).

I believe the M1015 operates at PCI-E 2.0 speeds. Would it make sense to replace the M1015 with a card that operates at PCI-E 3.0? Or, would the bottleneck be on the Expander?

Thanks for any input.
 

PigLover

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Jan 26, 2011
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Depends on what drives. If they have motors in them don't bother. If they don't then probably yes for 20 drives.
 
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Chuckleb

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Mar 5, 2013
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I agree, spinny drives you should be able to do 24-36 without hardship under normal use. SSDs will kill though.
 

TuxDude

Well-Known Member
Sep 17, 2011
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8 lanes of SAS2 speed (48 gbps) matches up quite well with 8 lanes of PCIe 2 (40 gbps). I wouldn't bother looking at a PCIe3 card unless you are also looking at increasing the SAS bandwidth (either 16-lanes of SAS2 or 8 lanes of SAS3) to go with it.