DISPLAY SCHIB

Read syntax diagramSkip visual syntax diagram Display SCHib EXPALLvsch1-:ENDvsch2.ENDcount

Authorization

Privilege Class: G

Purpose

Use DISPLAY SCHib to see your subchannel information blocks (SCHIB).

Operands

EXP
specifies that extended channel measurement information is to be displayed.
ALL
specifies that SCHIBs for all virtual devices are to be displayed.
vsch1
identifies the starting (or only) virtual subchannel whose SCHIB is to be displayed.
: END
- vsch2
vsch2 specifies that all SCHIBs in the range vsch1 to vsch2 are to be displayed, or that all SCHIBs from vsch1 to the highest number subchannel are to be displayed. END is the default if you specify a hyphen (-), or a colon (:). A colon (:) means the same as a hyphen (-) when specifying a range.
END
. count
count identifies the number of consecutive SCHIBs starting at vsch1 that are to be displayed. Specify END to display all SCHIBs from vsch1 to the highest number subchannel. END is the default if you specify a period (.).

Usage Notes

  1. If you specify a list of SCHIBS, and one is not found, the DISPLAY command terminates at the first SCHIB not found. For example, if you enter display SCHIB 0022 0033 0055 0011, and subchannel 0055 is not found, only SCHIB 0022 and 0033 will be displayed.

    If you specify a range of SCHIBs, the DISPLAY command terminates if the first SCHIB in the range is not found. Otherwise, all those SCHIBs that were found are displayed.

  2. You can use the QUERY VIRTUAL command to determine the subchannel number associated with a virtual device.
  3. The response to this command is a header line followed by a line of information for each SCHIB that you specify. (The header line identifies, column by column, the SCHIB information below it. See “Responses” below.)
  4. For more information, see Usage Notes.

Responses

Response 1: When EXP is not specified
SCHIB DEV  INT-PARM ISC FLG LP PNO  (Con't)
nnnn  nnnn nnnnnnnn   n  nn nn  nn
 
LPU PI MBI  PO PA CHPID0-3 CHPID4-7
 nn nn nnnn nn nn nnnnnnnn nnnnnnnn
If an interrupt is pending for the virtual subchannel, the following line describes the pending interrupt:
KEY ECC FPI ZN SCTL CCW-ADDR DS SS CNT  EXT-LOG
 n   n   n   n nnnn nnnnnnnn nn nn nnnn nnnnnnnn
Response 2: When EXP is specified
SCHIB DEV  INT-PARM ISC FLG MBI  FLG2 MBA
nnnn  nnnn nnnnnnnn   n  nn nnnn   nn nnnnnnnnnnnnnnnn
Response header lines contain headings from the list below. A brief description is included.
Heading Description
INT-PARM The interrupt parameter
ISC The interrupt subclass
FLG The flag field
LP The logical-path mask
PNO The path-not-operational mask
LPU The last-path-used mask
PI The path-installed mask
MBI The measurement block index
Note: This will be –––– when format-1 measurement blocks are being used.
PO The path-operational mask
PA The path-available mask
CHPID The channel path identifiers
FLG2 The flag field (PMCW word 6, bits 24–31)
MBA The measurement block address
KEY The SCSW protect key
ECC The logout condition code bits
FPI The format, prefetch, and initial response bits
ZN The initial status condition
SCTL The function and activity control bytes
CCW-ADDR The SCSW CCW address
DS The SCSW device status bits
SS The subchannel status bits
CNT The SCSW residual CCW data count
EXT-LOG The extended status/time word