The SDDPCM driver can be downloaded free of charge from IBM and is available for the following operating systems: If we use Storwize, DS8000 or SVC with our VIOS/AIX LPARs, then we should be replacing the built-in MPIO driver with the SDDPCM MPIO driver provided by IBM. The MPIO driver manages the multiple connections to our external disks to provide performance and resiliency.ĪIX, and therefore VIOS, comes with a built-in MPIO driver which, as far as I can see, was designed for FAStT and DSxxxx storage. We need an MPIO driver in AIX and VIOS as, normally, we access our SAN-based disks via multiple Fibre Channel ports. Something I’ve found that has been missing on a few occasions is the correct VIOS multipath I/O (MPIO) device driver for the Storwize systems. ![]() In the last few months, I have been involved with customers who already have their Power and Storwize systems up and running. ![]() ![]() With so many customers now using Storwize and SVC storage in their Power environment with VIOS, it is important that we get the configuration of the system correct and supported.
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