Veritas Volume Manager 5.1 SP1 Administrator"s Guide (5900-1506, April 2011)

This policy attempts to maximize overall I/O throughput
from/to the disks by dynamically scheduling I/O on the
paths. It is suggested for use where I/O loads can vary over
time. For example, I/O from/to a database may exhibit both
long transfers (table scans) and short transfers (random
look ups). The policy is also useful for a SAN environment
where different paths may have different number of hops.
No further configuration is possible as this policy is
automatically managed by DMP.
In this example, the adaptive I/O policy is set for the
enclosure enc1:
# vxdmpadm setattr enclosure enc1 \
iopolicy=adaptive
adaptive
181Administering Dynamic Multi-Pathing
Administering DMP using vxdmpadm