Console Commands › Console Commands › DISPLAY UNIT

DISPLAY UNIT

This command displays Virtual Control Unit and specific Virtual Device activity information for the Virtual Devices defined in the VTDRIVE parmlib member.

Syntax

SVTn Display Unit [,Active|=nnnn]

Active

Display information only for active devices.

nnnn

Display information for only the selected device.

Example of information displayed by the DISPLAY UNIT command

SVT4 D U                                                             
SVT1X1200I Display Unit Information 
 Dasd cache utilization 01222892/00867094/00530274 InUse=27% 

 Scratch Virtual Volumes:
   Pool1=44763    Pool2=41879    Pool3=n/a      Pool4=n/a 
   Pool5=n/a      Pool6=n/a      Pool7=n/a      Pool8=n/a 
SS CU P Rmt  Volser Unit ----Status---- Seq  Jobname  #I/O  Size  Pos 
1  1  0 n/a   n/a   3400                0             4 
1  1  0 n/a   n/a   3401                0             4 
1  1  0 n/a   n/a   3402                0             4 
1  1  0 n/a   n/a   3403                0             4 
1  1  0 n/a   n/a   3404                0             4 
1  1  0 n/a   n/a   3405                0             4 
1  1  0 n/a   n/a   3406                0             4 
1  1  0 n/a   n/a   3407                0             4 
1  2  1 n/a  166146 3408   I / O        2    ABCDET00 1647  112M  109M 
1  2  0 n/a   n/a   3409                0             4 
1  2  0 n/a   n/a   340A                0             4 
1  2  2 n/a  266148 340B   I / O        1    ABCDE11S 28948 1504M 1501M
1  2  0 n/a   n/a   340C                0             4 
1  2  0 n/a   n/a   340D                0             4 
1  2  0 n/a   n/a   340E                0             4 
1  2  0 n/a   n/a   340F                0             4 
SVT1X0100I Command Complete

The display contains the following information:

Dasd cache utilization

Total cache size/Cache populated with virtual data/Externalized (free able) cache.

InUse

Percent of cache that has not been Externalized.

Scratch Virtual Volumes

Number of available scratch volumes in each defined pool. “N/a” indicates an undefined pool.

SS

The last digit of the CA Vtape Subsystem Number (SVT1-8).

CU

The last digit of the control unit address space stepname (SVTSAS.SVT1V1-8).

P

The CA Vtape pool number from which the Virtual VOLSER was chosen (1-8).

RMT

Indicates whether or not the Virtual Device is used for the CA Vtape Peer-To-Peer (P2P) Option. “N/a” indicates a local or non-P2P device. Any other value indicates that the drive is used by the P2P option.

Volser

The Virtual VOLSER currently mounted on the device.

Unit

The Virtual Device address or number.

Status

The current status of the device.

Seq

The file sequence number in use on a mounted Virtual VOLSER.

Jobname

The job using the mounted Virtual VOLSER.

#I/O

The number of I/Os that have been performed by the device for the mounted Virtual VOLSER.

Size

The current size of the cache linear data set for the mounted Virtual VOLSER.

Pos

Where the Virtual Device is currently positioned in the cache linear data set.