topic Re: The number and rules for disk HBAs in fabric metrocluster in ONTAP Discussions https://community.netapp.com/t5/ONTAP-Discussions/The-number-and-rules-for-disk-HBAs-in-fabric-metrocluster/m-p/15134#M3414 <HTML><HEAD></HEAD><BODY><P>Thank you!</P></BODY></HTML> Sat, 13 Nov 2010 09:24:57 GMT aborzenkov 2010-11-13T09:24:57Z The number and rules for disk HBAs in fabric metrocluster https://community.netapp.com/t5/ONTAP-Discussions/The-number-and-rules-for-disk-HBAs-in-fabric-metrocluster/m-p/15120#M3409 <HTML><HEAD></HEAD><BODY><P>All documentation I have seen (standard DataONTAP set, TR3548 etc) describe configuration with 4 disk HBA ports (usually 2 x dual-port HBAs or onboard ports). I could not find any description about how many HBAs are possible/allowed/recommended and rulses to connect them.</P><P></P><P>E.g. I now have configuration with FAS3140 in fabric MC with 2 X2054A-R6 each. The rules in documentation are - never connect two ports from the same HBA to the same switch; but it is obviously not possible in case of 4 port HBA. Does it mean I am allowed to connect only 4 ports out of 8 available? How should head-to-switch connection look in this case?</P><P></P><P>Thank you!</P></BODY></HTML> Thu, 05 Jun 2025 07:05:38 GMT https://community.netapp.com/t5/ONTAP-Discussions/The-number-and-rules-for-disk-HBAs-in-fabric-metrocluster/m-p/15120#M3409 aborzenkov 2025-06-05T07:05:38Z Re: The number and rules for disk HBAs in fabric metrocluster https://community.netapp.com/t5/ONTAP-Discussions/The-number-and-rules-for-disk-HBAs-in-fabric-metrocluster/m-p/15124#M3411 <HTML><HEAD></HEAD><BODY><P>The rule is min 2 max 4 per head/controller/node whatever you want to call it.</P><P></P><P>Normally we take the four onboard or two onboard and 2 in an add on hba.</P><P></P><P>The four onboard are considered as two different hbas </P></BODY></HTML> Sat, 13 Nov 2010 09:13:04 GMT https://community.netapp.com/t5/ONTAP-Discussions/The-number-and-rules-for-disk-HBAs-in-fabric-metrocluster/m-p/15124#M3411 lausberg 2010-11-13T09:13:04Z Re: The number and rules for disk HBAs in fabric metrocluster https://community.netapp.com/t5/ONTAP-Discussions/The-number-and-rules-for-disk-HBAs-in-fabric-metrocluster/m-p/15134#M3414 <HTML><HEAD></HEAD><BODY><P>Thank you!</P></BODY></HTML> Sat, 13 Nov 2010 09:24:57 GMT https://community.netapp.com/t5/ONTAP-Discussions/The-number-and-rules-for-disk-HBAs-in-fabric-metrocluster/m-p/15134#M3414 aborzenkov 2010-11-13T09:24:57Z