The Virtualization Cookbook for SLES 10 SP2 - z/VM - IBM

list. Normal virtual processors in the dispatch list will be Q x (x=1,2,3). Eligible list would be
marked as E x . The third column in the example also gives state of virtual processor. This can
be helpful to get a idea of how the virtual processors might be constrained. Virtual processors
that are actually running in the snapshot period are marked with and RNN where NN is the
processor number they are on. An R without a number means the virtual processor is ready to
run but there is not an available processor. (Note: the virtual machine that issues the
INDICATE command will always be one of the running machines). Other states are
documented in the help for IND Q EXP. One doesn't have to be concerned about the other
columns unless detailed analysis is required or if IBM support requests it. Also, always
remember that is just a snapshot in time so often repeating this command over time can give
a more accurate picture of your z/VM system, a single snapshot cannot be regarded as
indicative.
14.1.2 Using other basic commands
Some other useful basic commands are briefly mentioned. All examples are shown from the
MAINT user ID. The results will be different for users with fewer privileges.
Getting help
To get help on the system use the HELP command. Sometimes it’s hard to find help for exactly
the command you’re looking for. Some useful help commands are as follow
==> help // for basic help
==> help menus // for menu of all z/VM help menus
==> help cp menu // for a menu of all CP commands
==> help cpquery // for a menu of all CP QUERY command
==> help cpset // for a menu of all CP SET commands
Determining who is logged on
To see who is logged on to the system use the QUERY NAMES command. For example:
==> q n
FTPSERVE - DSC , LINUX04 - DSC , LINUX03 - DSC , LINUX02 - DSC
LINUX01 - DSC , S11S1CLN - DSC , DTCVSW2 - DSC , DTCVSW1 - DSC
VMSERVR - DSC , VMSERVU - DSC , VMSERVS - DSC , TCPIP - DSC
OPERSYMP - DSC , DISKACNT - DSC , EREP - DSC , OPERATOR - DSC
MAINT -L0003
VSM - TCPIP
Determining storage or memory
To see how much central and expanded storage (memory) are installed and allocated to a
system use the QUERY STORAGE and QUERY XSTOR commands. For example:
==> q stor
STORAGE = 16G CONFIGURED = 16G INC = 256M STANDBY = 0 RESERVED = 0
==> q xstor
XSTORE= 2048M online= 2048M
XSTORE= 2048M userid= SYSTEM usage= 0% retained= 0M pending= 0M
XSTORE MDC min=0M, max=0M, usage=0%
XSTORE= 2048M userid= (none) max. attach= 2048M
Determining processors or CPUs
To see how many processors (CPs, IFLs, CPUs) you have allocated at system level, use the
QUERY PROCESSORS command. For example:
==> q proc
PROCESSOR 00 MASTER CP
PROCESSOR 01 ALTERNATE CP
226 The Virtualization Cookbook for RHEL 6