Red Hat LINUX VIRTUAL SERVER 4.6 - ADMINISTRATION Manuale di Installazione Scaricare il pdf (Pagina 70)

50 z/VM and Linux on IBM System z: The Virtualization Cookbook for Red Hat Enterprise Linux 6.0

This console is always accessible whether you are logged on to the HMC or not. z/VM

messages during both the shutdown and IPL process will be written to the system console,

but often you will be able to ignore them—you just want your system back in a few minutes

over the network.

To shut down and perform an IPL of the system, perform the following steps:

1. Pass the parameter IPLPARMS CONS=SYSC to the SHUTDOWN REPIL command:

==> shutdown reipl iplparms cons=sysc

You will lose your session, but it should come back in a few minutes as described above.

2. When your system is back, start a 3270 session and log on as MAINT. This shows that

there is TCP/IP access to z/VM.

3. Query the new VSWITCH:

==> q vswitch

VSWITCH SYSTEM VSW1 Type: VSWITCH Connected: 0 Maxconn: INFINITE

PERSISTENT RESTRICTED NONROUTER Accounting: OFF

VLAN Unaware

MAC address: 02-00-01-00-00-01

State: Ready

IPTimeout: 5 QueueStorage: 8

Isolation Status: OFF

RDEV: B440.P00 VDEV: B440 Controller: DTCVSW2

RDEV: B424.P00 VDEV: B424 Controller: DTCVSW1 BACKUP

You should see that the VSWITCH VSW1 exists, that the OSA devices you specified are

being used and that there are two built-in VSWITCH controllers, DTCVSW1 and DTCVSW2.

4. Use the QUERY RETRIEVE and QUERY VDISK commands to see the changes made to

the Features statement in the SYSTEM CONFIG file:

==> q retrieve

99 buffers available. Maximum of 255 buffers may be selected.

==> q vdisk userlim

VDISK USER LIMIT IS INFINITE

==> q vdisk syslim

VDISK SYSTEM LIMIT IS INFINITE, 0 BLK IN USE

This shows that the changes to the SYSTEM CONFIG file have taken effect.

4.6 Adding paging volumes

The z/VM operating system resides on the first three CP volumes (or one volume if installing

onto 3390-9s). z/VM V6.1 is installed with one full paging volume and one full spool volume. A

single spool volume is probably adequate for Linux needs; however, a single paging volume

is probably not.

Important: If you cannot start another 3270 session, do not despair, and consider this

a good learning experience. You must go back to an Integrated 3270 session from the

HMC. Verify that TCPIP is logged on. If it is logged on and you still cannot get to your

system, log TCPIP off (or just re-IPL CMS), log back on, press Enter and watch the

messages for errors.

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Red Hat LINUX VIRTUAL SERVER 4.6 - ADMINISTRATION Manuale di Installazione Pagina 70

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