Specifications

70 IBM System z Personal Development Tool: Volume 3 Additional Topics
򐂰 q da all - list the “real” online disks.
򐂰 q alloc all - list page, spool, temporary disks, and directory usage.
򐂰 q alloc map - lists percentage use for page and spool disks.
򐂰 q system - another way to list system disks.
򐂰 q accessed - list minidisks I have accessed.
򐂰 q links 120 - list userids who have links to my 120 disk.
򐂰 q pf - list Program Function Key assignments.
򐂰 q stor - how much System z storage?
򐂰 q n - which userids are logged on?
򐂰 q all - what disks and terminals are online?
򐂰 q rdr - list the files in your virtual reader.
򐂰 q prt - list files in your virtual print queue.
򐂰
򐂰 set pf12 retrieve - make PF12 function as a retrieve key.
򐂰 force userid - terminate a user immediately.
򐂰 rdrlist - list files in your virtual reader.
– Use PF11 to peek at any of these files.
– Use discard to delete a particular file.
򐂰 purge system rdr all - purge all reader files in the z/VM system.
– purge joe rdr 1234 - purge particular reader file belonging to userid joe.
– purge joe rdr all - purge all joe’s reader files.
򐂰 purge system prt all - purge all printer files in the z/VM system.
򐂰 link joe 456 456 - link to joe’s 456 disk as my 456 disk.
򐂰 acc 456 j - access my 456 disk as CMS drive j.
򐂰 filelist * * a - list the files on your a disk.
򐂰 rel j - release a CMS drive assignment
򐂰 det 456 - detach disk 456 from my userid
򐂰 vmlink joe 345 - a combined link and acc function.
򐂰 format 191 a - format a new minidisk.
򐂰 directxa user direct c - activate an updated z/VM directory.
򐂰 ind - how busy is the system?
򐂰 diskmap user direct c - create a minidisk map based in directory user direct c.
򐂰
browse user diskmap a - inspect a file
4.8 zIIPs and zAAPs
A zPDT system can provide a zIIP or zAAP in place of a CP, but this reduces the number of
CPs available. z/VM can provide simulated zIIPs or zAAPs, working only with CPs in the base
zPDT system. Furthermore, z/VM can provide more logical CPs, zIIPs, and zAAPs than there
are CPs present in the base 1090 system.
The definition of a z/VM guest, in the z/VM directory, can contain statements such as the
following:
MACH ESA 5 (allow up to 5 logical processors)
CPU 0 BASE
CPU 1 TYPE zIIP
CPU 2 TYPE zAAP
The three logical processors (one CP, one zIIP, one zAAP) can be used even if the base zPDT
definition has only a single CP (a 1090-L01, for example). Of course, there are performance
implications if the number of logical processors greatly exceeds the number of “real” System z
processors, but this may be acceptable for development and testing situations.