Dynamic Multi-Pathing 8.0.1 Administrator's Guide - Windows
- Understanding DMPW
- Setting up DMPW
- Administering DMPW
- About administering DMP
- DMP DSMs menus
- View array, disk, and path status
- vxdmpadm
- vxdmpadm dsminfo
- vxdmpadm arrayinfo
- vxdmpadm deviceinfo
- vxdmpadm pathinfo
- vxdmpadm arrayperf
- vxdmpadm deviceperf
- vxdmpadm pathperf
- vxdmpadm allperf
- vxdmpadm iostat
- vxdmpadm cleardeviceperf
- vxdmpadm cleararrayperf
- vxdmpadm clearallperf
- vxdmpadm setdsmscsi3
- vxdmpadm setarrayscsi3
- vxdmpadm setattr dsm
- vxdmpadm setattr array
- vxdmpadm setattr device
- vxdmpadm setattr path
- vxdmpadm set isislog
- vxdmpadm rescan
- vxdmpadm disk list
- vxdmpadm getdsmattrib
- vxdmpadm getmpioparam
- vxdmpadm setmpioparam
- Performance tuning
- Troubleshooting
- Glossary
Set primary path
The Set primary path command on the DMP DSMs menu can be used to specify the currently selected path as the primary path to the disk or the array.
The following options are available:
Set primary path for device
This menu option is available only when the operational mode for the path to the disk is specified as Fail Over Only (Active/Passive) and the currently selected path is not the primary path. The primary path is the only path that is used to transfer data to and from the disk. Clicking this menu selection makes the selected path the primary path to the disk.
Set primary path for array
This lets you specify the currently selected path as the primary path to the array. The primary path is the only path that is used to transfer data to and from the array.
The array's primary path can be set regardless of the array's current load balance setting. This means that if a disk in the array is set to Fail Over Only (Active/Passive), the primary path for the array becomes the primary path for the disk. If the setting is set to any other load balance option, then the primary path setting for the array is not used. However, if a disk in the array is set to Fail Over Only (Active/Passive), the primary path for the array becomes the primary path for the disk.
For example, if an array has a load balance setting of round robin (Active/Active) and the primary path for the array is set to path 2-1-1, then any disk in the array that has the load balance setting of Fail Over Only (Active/Passive) has its primary path set to path 2-1-1.