https://community.hpe.com/t5/operating-system-linux/is-it-possible-to-hba-disable-paths-from-a-particular-hba/m-p/4476407#M37877 You can just run the "portdisable" command on the san switch (if fabric os based). If multipath is working correctly, it should be not a problem. Mon, 10 Aug 2009 13:46:15 GMT Ivan Ferreira 2009-08-10T13:46:15Z https://community.hpe.com/t5/operating-system-linux/is-it-possible-to-hba-disable-paths-from-a-particular-hba/m-p/4476406#M37876 <BR />RHEL AS 3 update <BR />I have erros reporting from one of the two HBA(two paths). which is causing performance issues. can i disable two paths from that particular HBA?? Need to disable A4&amp;b4 paths only. <BR /><BR />I dont know if it is possible to disabled card? and hot it impacts if done online??<BR /><BR />#powermt display ports<BR /><BR />Storage class = Symmetrix<BR />==============================================================================<BR />----------- Storage System --------------- -- I/O Paths -- --- Stats ---<BR />ID Interface Wt_Q Total Dead Q-IOs Errors<BR />==============================================================================<BR /><BR />Storage class = CLARiiON<BR />==============================================================================<BR />----------- Storage System --------------- -- I/O Paths -- --- Stats ---<BR />ID Interface Wt_Q Total Dead Q-IOs Errors<BR />==============================================================================<BR />APM00084701833 SP B5 256 2 0 0 0<BR />APM00084701833 SP A5 256 2 0 0 0<BR />APM00084701833 SP A4 256 2 0 1 4<BR />APM00084701833 SP B4 256 2 1 0 2<BR /><BR /><BR />powermt display dev=all<BR /><BR />state=alive; policy=CLAROpt; priority=0; queued-IOs=0<BR />Owner: default=SP A, current=SP A<BR />==============================================================================<BR />---------------- Host --------------- - Stor - -- I/O Path - -- Stats ---<BR />### HW Path I/O Paths Interf. Mode State Q-IOs Errors<BR />==============================================================================<BR />1 QLogic Fibre Channel 2300 sdd SP B5 active alive 0 0<BR />1 QLogic Fibre Channel 2300 sdf SP A5 active alive 0 0<BR />2 QLogic Fibre Channel 2300 sdh SP A4 active alive 0 3<BR />2 QLogic Fibre Channel 2300 sdj SP B4 active alive 0 1<BR /><BR /><BR />state=alive; policy=CLAROpt; priority=0; queued-IOs=0<BR />Owner: default=SP A, current=SP A<BR />==============================================================================<BR />---------------- Host --------------- - Stor - -- I/O Path - -- Stats ---<BR />### HW Path I/O Paths Interf. Mode State Q-IOs Errors<BR />==============================================================================<BR />1 QLogic Fibre Channel 2300 sdc SP B5 active alive 0 0<BR />1 QLogic Fibre Channel 2300 sde SP A5 active alive 0 0<BR />2 QLogic Fibre Channel 2300 sdg SP A4 active alive 0 3<BR />2 QLogic Fibre Channel 2300 sdi SP B4 active dead 0 1<BR /><BR /> Mon, 10 Aug 2009 12:43:26 GMT https://community.hpe.com/t5/operating-system-linux/is-it-possible-to-hba-disable-paths-from-a-particular-hba/m-p/4476406#M37876 skt_skt 2009-08-10T12:43:26Z https://community.hpe.com/t5/operating-system-linux/is-it-possible-to-hba-disable-paths-from-a-particular-hba/m-p/4476407#M37877 You can just run the "portdisable" command on the san switch (if fabric os based). If multipath is working correctly, it should be not a problem. Mon, 10 Aug 2009 13:46:15 GMT https://community.hpe.com/t5/operating-system-linux/is-it-possible-to-hba-disable-paths-from-a-particular-hba/m-p/4476407#M37877 Ivan Ferreira 2009-08-10T13:46:15Z