topic Re: Dual Quad-port SAS HBA on Single Stack in ONTAP Hardware https://community.netapp.com/t5/ONTAP-Hardware/Dual-Quad-port-SAS-HBA-on-Single-Stack/m-p/7444#M511 <HTML><HEAD></HEAD><BODY><P>Page 31 (in my copy) of mentioned guide describes recommended cabling sequence for multiple HBAs. Nothing stops you using two quad HBAs with single stack, you just will waste 6 ports out of 8 ... it would be HBA 1 port A and HBA 2 port B.</P></BODY></HTML> Thu, 06 May 2010 14:03:21 GMT aborzenkov 2010-05-06T14:03:21Z Dual Quad-port SAS HBA on Single Stack https://community.netapp.com/t5/ONTAP-Hardware/Dual-Quad-port-SAS-HBA-on-Single-Stack/m-p/7440#M510 <HTML><HEAD></HEAD><BODY><P>Hi guys,</P><P></P><P>Anyone can provide any information on whether is it possible to connect Dual Quad-Port SAS HBA on a FAS3140HA to a Single Stack of Disk on DS243 ?</P><P>Such as connecting HBA1, Port A to the top Stack and HBA 2, Port B to the bottom Stack of the Disk Shelf ?</P><P></P><P>As from the DS243 Installation and Service Guide, i can only find Single Quad-Port SAS HBA to Single Stack and Dual Quad-Port SAS HBA to double Stack of disk shelves.</P><P></P><P>Best Regards,</P><P>HongWei</P></BODY></HTML> Thu, 05 Jun 2025 07:14:50 GMT https://community.netapp.com/t5/ONTAP-Hardware/Dual-Quad-port-SAS-HBA-on-Single-Stack/m-p/7440#M510 redtail1981 2025-06-05T07:14:50Z Re: Dual Quad-port SAS HBA on Single Stack https://community.netapp.com/t5/ONTAP-Hardware/Dual-Quad-port-SAS-HBA-on-Single-Stack/m-p/7444#M511 <HTML><HEAD></HEAD><BODY><P>Page 31 (in my copy) of mentioned guide describes recommended cabling sequence for multiple HBAs. Nothing stops you using two quad HBAs with single stack, you just will waste 6 ports out of 8 ... it would be HBA 1 port A and HBA 2 port B.</P></BODY></HTML> Thu, 06 May 2010 14:03:21 GMT https://community.netapp.com/t5/ONTAP-Hardware/Dual-Quad-port-SAS-HBA-on-Single-Stack/m-p/7444#M511 aborzenkov 2010-05-06T14:03:21Z Re: Dual Quad-port SAS HBA on Single Stack https://community.netapp.com/t5/ONTAP-Hardware/Dual-Quad-port-SAS-HBA-on-Single-Stack/m-p/7454#M512 <HTML><HEAD></HEAD><BODY><P>Yes i will waste the other 6 ports.. but at least i have a redundancy at the card level.</P><P>Just need to verify whether anyone have done this kind of config before...</P></BODY></HTML> Fri, 07 May 2010 00:24:43 GMT https://community.netapp.com/t5/ONTAP-Hardware/Dual-Quad-port-SAS-HBA-on-Single-Stack/m-p/7454#M512 redtail1981 2010-05-07T00:24:43Z Re: Dual Quad-port SAS HBA on Single Stack https://community.netapp.com/t5/ONTAP-Hardware/Dual-Quad-port-SAS-HBA-on-Single-Stack/m-p/7458#M513 <HTML><HEAD></HEAD><BODY><P>I plan do a setup with 2 sas cards and single stack when I get my first ds4243.</P></BODY></HTML> Fri, 07 May 2010 08:17:34 GMT https://community.netapp.com/t5/ONTAP-Hardware/Dual-Quad-port-SAS-HBA-on-Single-Stack/m-p/7458#M513 pascalduk 2010-05-07T08:17:34Z Re: Dual Quad-port SAS HBA on Single Stack https://community.netapp.com/t5/ONTAP-Hardware/Dual-Quad-port-SAS-HBA-on-Single-Stack/m-p/7463#M514 <HTML><HEAD></HEAD><BODY><P>Not that it can't happen....but seeing a slot failure in a NetApp is very real. So, if you have the extra slots and the extra cash, I don't see any technical issues. If I'm short of slots (i.e. want to do 10 GigE, PAM, etc.), I wouldn't have a huge issue with putting my disk off a single SAS HBA especially in a cluster where cluster failover provides some level of protection.</P><P></P><P>I see this kind of question/scenario as happening fairly often given that the 31x0 line only has 4 slots, no built-in SAS ports, and a single SAS HBA can technicall handle up to 480 disks (i.e. higher than the maximum disks for a 3140).</P></BODY></HTML> Sat, 15 May 2010 21:45:01 GMT https://community.netapp.com/t5/ONTAP-Hardware/Dual-Quad-port-SAS-HBA-on-Single-Stack/m-p/7463#M514 amiller_1 2010-05-15T21:45:01Z