Red Hat LINUX VIRTUAL SERVER 4.6 - ADMINISTRATION Manuale di Installazione Scaricare il pdf (Pagina 159)

Chapter 8. Installing and configuring the golden image 139

4. Run DISKMAP to check for overlaps and gaps. You should only see the single 501

cylinder gap:

==> diskmap user

==> x user diskmap

====> pre off

====> all /gap/|/overlap/

0 500 501 GAP

-------------------- 6 line(s) not displayed --------------------

0 0 1 GAP

-------------------- 391 line(s) not displayed --------------------

====> quit

5. When the disk layout is correct, run DIRECTXA to bring the changes online:

==> directxa user

z/VM USER DIRECTORY CREATION PROGRAM - VERSION 5 RELEASE 3.0

EOJ DIRECTORY UPDATED AND ON LINE

You have now defined the user ID that will contain the master Linux image.

8.1.2 Adding RH6GOLD to AUTOLOG1 PROFILE EXEC

The new Linux ID you defined needs access to the VSWITCH. Just as with the RH6CLONE

user, a SET VSWITCH command with the GRANT parameter will now be added to AUTOLOG1

PROFILE EXEC. Also, an XAUTOLOG statement is added so that the RH6GOLD user ID is

automatically logged on when you perform an IPL of z/VM.

Perform the following steps:

1. Link and access the AUTOLOG1 191 disk in read/write mode and edit the PROFILE

EXEC field. Add the RH6GOLD user ID to the section that grants access to the VSWITCH.

Note that you do not want to add RH6GOLD to the XAUTOLOG section, as this Linux user

ID will not normally be logged on:

==> link autolog1 191 1191 mr

==> acc 1191 f

==> x profile exec f // add two lines

/***************************/

/* Autolog1 Profile Exec */

/***************************/

'cp xautolog tcpip' /* start up TCPIP */

'CP XAUTOLOG DTCVSW1' /* start VSWITCH controller 1 */

'CP XAUTOLOG DTCVSW2' /* start VSWITCH controller 2 */

'cp set pf12 ret' /* set the retrieve key */

'cp set mdc stor 0m 128m' /* Limit minidisk cache in CSTOR */

'cp set mdc xstore 0m 0m' /* Disable minidisk cache in XSTOR */

'cp set srm storbuf 300% 250% 200%' /* Overcommit memory */

'cp set signal shutdown 300' /* Allow guests 5 min to shut down */

/* Grant access to VSWITCH for each Linux user */

'cp set vswitch vsw1 grant rh6clone'

'cp set vswitch vsw1 grant rh6gold'

/* XAUTOLOG each Linux user that should be started */

'cp xautolog rh6clone'

'cp logoff' /* logoff when done */

====> file

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Red Hat LINUX VIRTUAL SERVER 4.6 - ADMINISTRATION Manuale di Installazione Pagina 159

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