Disabled mpxio only for I/O backup

Question

Hi,
I have an issue related slow backup performance,
Based on recommendation :  mpxio does not requires enabled for tape connection
In the list paths below :
#luxadm -e port
/devices/pci@400/pci@1/pci@0/pci@8/SUNW,qlc@0/fp@0,0:devctl        CONNECTED   --> tape connection
/devices/pci@400/pci@1/pci@0/pci@8/SUNW,qlc@0,1/fp@0,0:devctl      CONNECTED --> disk connection
/devices/pci@400/pci@2/pci@0/pci@8/SUNW,qlc@0/fp@0,0:devctl        CONNECTED  -->disk connection
/devices/pci@400/pci@2/pci@0/pci@8/SUNW,qlc@0,1/fp@0,0:devctl      NOT CONNECTED
mpxio have been enabled when executed using stmsboot command except the following path only for tape  :
/devices/pci@400/pci@1/pci@0/pci@8/SUNW,qlc@0/fp@0,0:devctl 
or
root@eccprod-DRC#grep /pci@400/pci@1/pci@0/pc /kernel/drv/fp.conf
name="fp" parent="/pci@400/pci@1/pci@0/pci@8/SUNW,qlc@0" port=0 mpxio-disable="yes";
Means:
there is a existing one hba card with dual fc port which connected to each connection,one connection for tape and other for storage
My question:
1.  is this caused that the tape and storage connected at one hba ?
2.  whether the tape should have a dedicated connection in one hba card ?
Need your suggestion
Best Regards
-jodi

Answer 1

Hi.
  Disable MPXIO pon port for tapes - It's normal.
  Disk and Tapes on same HBA on different ports - not should cause any problems.
You say about low performance but not show any informwation about perfomance.
iostat -xnz 5 5 at time of backup can give more usefull information.
Regards.