Before You Begin
When you bring up a native z/VM® system, you are initializing the configuration that your installation defined during system generation. (z/VM: CP Planning and Administration describes, in detail, the system generation process.)
Before bringing up this system, make sure that:
- Your processor is partitioned correctly.
- The real processor is ready for use.
- The system residence volume is ready for use.
- The volumes containing the checkpoint and warm start cylinders or pages are ready for use, if they are not included on the system residence volume.
- Any volumes containing user minidisks are ready for use.
- The system paging and spooling volumes are ready for use.
- The other devices in the configuration are on, ready, and available to the processor you are using.
- The z/VM system console is available.
- Your required storage is available.
- If you are using a processor that requires it, you have selected the correct I/O configuration data set (IOCDS).
- If you are planning to perform a cold start, you have mounted the tape that contains the spool files and system data files you previously backed up using the SPXTAPE command, if any.
If your installation has changed the z/VM system configuration statements that define the new I/O configuration to the Control Program (CP), make sure that:
- Your installation has run the Input/Output Configuration Program (IOCP) to create a new IOCDS.
- You select the new IOCDS.
- If you are planning to use the dynamic I/O capabilities of z/VM, you must ensure
that:
- In the system configuration file, the FEATURES statement has enabled dynamic_i/o.
- From the system hardware console, you have:
- Specified an IOCP extension percentage to allow for additional HSA (Hardware System Area) space
- Set the 'Allow Dynamic Modification' bit
These are required to exploit this capability.
For information about running the IOCP, see the appropriate publication listed in the bibliography.
- The real device number of the device on which z/VM resides.
To bring up z/VM, you need to specify this real device number on the processor complex's system console.
- The virtual device number your installation assigns to the device
on which your production system resides.
To bring up your production system, you need to specify this virtual device number on the IPL command.
Now you are ready to load CP into storage.