z/VM: CP Commands and Utilities Reference - z/VM - IBM

Usage Notes
Responses
def stor config 0.64m 2g-1m.2m
STORAGE = 66M
Storage Configuration:
0.64M 2G-1M.2M
Extent Specification Address Range
---------------------------------- -----------------------------------
0.64M 0000000000000000 - 0000000003FFFFFF
2G-1M.2M 000000007FF00000 - 00000000800FFFFF
Storage cleared - system reset.
See Response 3 for a detailed definition of the information.
1. Specify the new storage size as a multiple of 64 KB. The new storage size is
limited by the maximum size contained in your entry in the system directory. The
minimum size you can specify is 64 KB.
If the storage size you specify is not a multiple of 1 MB, the size is rounded up
to the next 1 MB boundary.
2. If the DEFINE STORAGE command changes the size of your virtual machine
storage, the command performs a system-reset-clear function, as though the
SYSTEM CLEAR command had been processed. The effects of this
system-reset-clear function are described in detail in the description for the
SYSTEM CLEAR command. Because a system-reset-clear function sets all of
your virtual machine storage to binary zeros, you must repeat your IPL
procedure to continue operation.
If the DEFINE STORAGE command does not change the size or configuration
of your virtual machine’s storage, no system-reset-clear function is performed.
The contents of your virtual machine storage are unchanged.
3. The CONFIGuration option with more than one extent is primarily for testing. Do
not confuse this with loading discontiguous saved segments.
4. Directory limits apply to the sum of the extent sizes.
5. For more information, see “Usage Notes” on page 113.
Response 1:
STORAGE = nu
where:
nu n is the size of the virtual machine storage. u is the unit of measure:
K kilobytes
M megabytes
G gigabytes
T terabytes
P petabytes
E exabytes
Response 2:
STORAGE CLEARED - SYSTEM RESET
is issued whenever you change your virtual machine storage size.
DEFINE STORAGE
Chapter 2. CP Commands 187