Displaying channel types
This z/OS operator command provides information about the status and type of channels.
There are two parts to the display:
1. The first section displays the channel path status. The channel path status is relative to the z/OS where the command is issued. That is, a CHPID may be displayed as being offline, but if this CHPID is shared (MIF) by other logical partitions, it may not be offline physically.
2. The second section displays the channel path type. Note that where the first section only displays the status of channels available to the z/OS image, the second section provides information about channels installed on the server.
Channel path types
The channel subsystem may contain more than one channel type. Examples of channel path types used by the channel subsystem are ESCON, FICON Express, FICON bridge and FCP.
The term “serial-I/O interface” is used to refer to the ESCON I/O interface, the FICON I/O interface, and the FICON-converted I/O interface.
D M=CHP M=CHP
IEE174I 13.56.07 DISPLAY M 542
CHANNEL PATH STATUS
0 1 2 3 4 5 6 7 8 9 A B C D E F
0 . . . . . . . . . . . . . . . .
1 . . . . . . . . . . . . . . . .
2 . . . . . . . . . . . . . . . .
3 . . . . . . . . . . . . . . . .
4 . . . . . . . . . . . . . . . .
5 . . . . . . . . . . . . . . . .
6 . . . . . . . . . . . . . . . .
7 . . . . . . . . . . . . . . . .
8 . . + . . . . . . . . . . . . .
9 . . . . + + + . . . . . + . + .
A . . . . . . . . . . . . . . . .
B . + . . + + . . + + + . . . . .
C . . . . . . . . . . . . . . . .
D . . . . . . . . . + + . . . . .
E . . . . . . . . . . . . . . . .
F . . . . . . . . . . . . . . . .
************************ SYMBOL EXPLANATIONS ************************
+ ONLINE @ PATH NOT VALIDATED - OFFLINE . DOES NOT EXIST
* MANAGED AND ONLINE # MANAGED AND OFFLINE
CHANNEL PATH TYPE STATUS
0 1 2 3 4 5 6 7 8 9 A B C D E F
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
3 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
4 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
5 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
6 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
7 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
8 00 00 03 00 00 00 00 00 00 00 00 00 00 00 00 00
9 00 00 00 00 06 11 11 00 00 00 00 00 03 00 03 00
A 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
B 00 03 00 00 11 11 00 00 03 10 10 00 00 00 00 00
C 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
D 00 00 00 00 00 00 00 00 00 03 03 00 00 00 00 00
E 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
F 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
************************ SYMBOL EXPLANATIONS ************************
00 UNKNOWN UNDEF
01 PARALLEL BLOCK MULTIPLEX BLOCK
02 PARALLEL BYTE MULTIPLEX BYTE
03 ESCON POINT TO POINT CNC_P
04 ESCON SWITCHED OR POINT TO POINT CNC_?
05 ESCON SWITCHED POINT TO POINT CNC_S
06 ESCON PATH TO A BLOCK CONVERTER CVC
07 NATIVE INTERFACE NTV
08 CTC POINT TO POINT CTC_P
09 CTC SWITCHED POINT TO POINT CTC_S
0A CTC SWITCHED OR POINT TO POINT CTC_?
0B COUPLING FACILITY SENDER CFS
0C COUPLING FACILITY RECEIVER CFR
0D UNKNOWN UNDEF
0E UNKNOWN UNDEF
0F ESCON PATH TO A BYTE CONVERTER CBY
10 OSA EXPRESS OSE
11 OSA DIRECT EXPRESS OSD
12 OPEN SYSTEMS ADAPTER OSA
13 INTERNAL SYSTEM DEVICE ISD
14 OSA CONSOLE OSC
15 RESERVED UNDEF
16 CLUSTER BUS SENDER CBS
17 CLUSTER BUS RECEIVER CBR
18 INTERNAL COUPLING SENDER ICS
19 INTERNAL COUPLING RECEIVER ICR
1A FICON POINT TO POINT FC
1B FICON SWITCHED FC_S
1C FICON TO ESCON BRIDGE FCV
1D FICON INCOMPLETE FC_?
1E DIRECT SYSTEM DEVICE DSD
1F EMULATED I/O EIO
20 RESERVED UNDEF
21 INTEGRATED CLUSTER BUS PEER CBP
22 COUPLING FACILITY PEER CFP
23 INTERNAL COUPLING PEER ICP
24 INTERNAL QUEUED DIRECT COMM IQD
25 FCP CHANNEL FCP
NA INFORMATION NOT AVAILABLE
0 comments on Displaying CHPIDs (D M=CHP)