Displays the logical subsystem configuration as defined to the
host software, and highlights any inconsistencies between the host
configuration definition and the subsystem configuration for parallel
access volumes (PAVs).
- sdddd
- Specifies the device or devices to be displayed. Device can
be specified in either of the following formats:
- sdddd
- s is either 0 or 1 to indicate the desired subchannel
and dddd specifies a 4 hex digit device number (3–digit
device numbers must be padded with a leading zero).
- dddd
- Specifies just the device number. In this case,
the active subchannel set is used to return information about the
device.
- nnn
- Specifies the number of devices, a decimal number from 1 to
256.
- SSID=ssid
- Specifies the subsystem identification number (SSID) of the
subsystem whose information DEVSERV displays. Valid ssid numbers
are from 1 to FFFF. SSID=ssid causes an I/O operation for
each DASD in the system. To limit the number of I/O operations, specify sdddd and nnn.
This command displays PAV bases and aliases that are in the same control
unit and the same subchannel set if the control unit has multiple
subchannel sets defined.
- VOLUME
- Displays the parallel access volume (PAV) relationship information
for the logical volume, including the PAV base device number and all
PAV alias device numbers bound to that base.
- UCB
- Displays the unit control block (UCB) information associated
with the device.
- DCE
- Displays the device class extension block (DCE) of the BASE
UCB.
- UNBOX
- Causes QPAVS to unbox the unbound alias device if it is in a
BOX state. UNBOX can be issued to more than 1 device
in a string in a single command.
- HPAV
- Displays the number of alias pool devices or the alias pool
device numbers associated with a base device number sdddd that
is the target of the QPAV command. If the sdddd number is
issued to a HyperPAV alias device, only the alias device
will be in the output.