https://community.hpe.com/t5/disk-enclosures/re-msa-active-active-active-passive/m-p/3992841#M23690 Hi,<BR /><BR />if i have a clustering solution with 2 HBA from each server. which is connected to both switch on the MSA(active-passive).<BR /><BR />do i need to add both WWPN in the ACL for the host to access the LUN? Wed, 02 May 2007 20:58:12 GMT Chin Wee Meng 2007-05-02T20:58:12Z https://community.hpe.com/t5/disk-enclosures/re-msa-active-active-active-passive/m-p/3992841#M23690 Hi,<BR /><BR />if i have a clustering solution with 2 HBA from each server. which is connected to both switch on the MSA(active-passive).<BR /><BR />do i need to add both WWPN in the ACL for the host to access the LUN? Wed, 02 May 2007 20:58:12 GMT https://community.hpe.com/t5/disk-enclosures/re-msa-active-active-active-passive/m-p/3992841#M23690 Chin Wee Meng 2007-05-02T20:58:12Z https://community.hpe.com/t5/disk-enclosures/re-msa-active-active-active-passive/m-p/3992842#M23691 Yes.<BR /><BR />In ACU, under SSP (Selective Storage Presentation... you will see a listing of the HBA's the MSA see's. You need to give the HBA connection a name, set the OS type and grant it access to the logical disk(s) it needs.<BR /><BR />In zoning terms, you will have to create at least 1 zone per fabric on your SAN Switches that include the ports each hba is connected to (or the WWPN's of each HBA) and the MSA controller on that fabric.<BR /><BR /><BR />These are very basic configuration tips and without knowing more about your environment, I can not be 100% certain that all these things are necessary.<BR /><BR />Let us know if you have more questions, and/or post additional information about your configuration. (Types of servers, types of HBA,s what SAN Switches, etc.)<BR /><BR /><BR />Steven Thu, 03 May 2007 09:32:13 GMT https://community.hpe.com/t5/disk-enclosures/re-msa-active-active-active-passive/m-p/3992842#M23691 Steven Clementi 2007-05-03T09:32:13Z