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

OPERATIONS KBYTES AVG TIME(ms)
PATHNAME READS WRITES READS WRITES READS WRITES
c2t0d15 1021 0 1021 0 0.39 0.00
c2t1d15 947 0 947 0 0.39 0.00
c3t1d15 1004 0 1004 0 0.39 0.00
c3t2d15 1027 0 1027 0 0.40 0.00
c4t2d15 1086 0 1086 0 0.39 0.00
c4t3d15 1048 0 1048 0 0.39 0.00
c5t3d14 1036 0 1036 0 0.39 0.00
c5t4d15 1021 0 1021 0 0.39 0.00
The enclosure can be returned to the single active I/O policy by entering the
following command:
# vxdmpadm setattr enclosure ENC0 iopolicy=singleactive
Disabling I/O for paths, controllers or array ports
Disabling I/O through a path, HBA controller or array port prevents DMP from
issuing I/O requests through the specified path, or the paths that are connected
to the specified controller or array port. The command blocks until all pending
I/O requests issued through the paths are completed.
To disable I/O for a path, use the following command:
# vxdmpadm [-c|-f] disable path=path_name
To disable I/O for multiple paths, use the following command:
# vxdmpadm [-c|-f] disable path=path_name1,path_name2,path_nameN
To disable I/O for the paths connected to an HBA controller, use the following
command:
# vxdmpadm [-c|-f] disable ctlr=ctlr_name
To disable I/O for the paths connected to an array port, use one of the following
commands:
# vxdmpadm [-c|-f] disable enclosure=enclr_name portid=array_port_ID
# vxdmpadm [-c|-f] disable pwwn=array_port_WWN
where the array port is specified either by the enclosure name and the array port
ID, or by the array port’s worldwide name (WWN) identifier.
The following are examples of using the command to disable I/O on an array port:
187Administering Dynamic Multi-Pathing
Administering DMP using vxdmpadm