Chapter 5. Central processor complex channel subsystem 193
The display ios,config command
The z/OS display ios,config(all) command that is shown in Figure 5-2 includes
information about the multiple subchannel sets.
Figure 5-2 Output for display ios,config(all) command
5.1.3 Channel path spanning
With the implementation of multiple LCSSs, a channel path can be available to LPARs as
dedicated, shared, and spanned.
Although a shared channel path can be shared by LPARs within a same LCSS, a spanned
channel path can be shared by LPARs within and across LCSSs.
By assigning the same CHPID from different LCSSs to the same channel path, a PCHID for
example, the channel path can be accessed by any LPAR from these LCSSs at the same
time. That CHPID is then spanned across those LCSSs. Using spanned channels paths
decreases the number of channels needed in an installation of z Systems servers.
D IOS,CONFIG(ALL)
IOS506I 11.32.19 I/O CONFIG DATA 340
ACTIVE IODF DATA SET = SYS6.IODF39
CONFIGURATION ID = L06RMVS1 EDT ID = 01
TOKEN: PROCESSOR DATE TIME DESCRIPTION
SOURCE: SCZP303 14-10-31 08:51:47 SYS6 IODF39
ACTIVE CSS: 0 SUBCHANNEL SETS CONFIGURED: 0, 1, 2
CHANNEL MEASUREMENT BLOCK FACILITY IS ACTIVE
LOCAL SYSTEM NAME (LSYSTEM): SCZP303
HARDWARE SYSTEM AREA AVAILABLE FOR CONFIGURATION CHANGES
PHYSICAL CONTROL UNITS 8099
CSS 0 - LOGICAL CONTROL UNITS 3996
SS 0 SUBCHANNELS 54689
SS 1 SUBCHANNELS 58862
SS 2 SUBCHANNELS 65535
CSS 1 - LOGICAL CONTROL UNITS 4088
SS 0 SUBCHANNELS 65280
SS 1 SUBCHANNELS 65535
SS 2 SUBCHANNELS 65535
CSS 2 - LOGICAL CONTROL UNITS 4088
SS 0 SUBCHANNELS 65280
SS 1 SUBCHANNELS 65535
SS 2 SUBCHANNELS 65535
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