Red Hat LINUX VIRTUAL SERVER 4.6 - ADMINISTRATION Manuale di Installazione Scaricare il pdf (Pagina 77)

Chapter 4. Installing and configuring z/VM 57

Perform the following steps:

1. Edit the USER DIRECT file and add the following user ID definition to the bottom of the file. A

comment is added signifying the split between z/VM system user IDs and locally added

user IDs (this can be helpful when moving to a new version of z/VM):

==> x user direct c

====> bottom

====> a 9

...

*------------------------------------------------------------

* z/VM system user IDs are above, local user IDs are below

*------------------------------------------------------------

USER LNXMAINT LNXMAINT 64M 128M BEG 1

INCLUDE TCPCMSU 2

LINK TCPMAINT 592 592 RR 3

MDISK 0191 3390 0001 0020 UM6289 MR READ WRITE MULTIPLE 4

MDISK 0192 3390 0021 0300 UM6289 MR ALL WRITE MULTIPLE 5

* 6

...

====> file

Note the following points for the numbers in black:

1 User ID LNXMAINT, same password, default size of 64 MB, with class B, E, and G

privileges.

2 Include the profile named TCPCMSU (defined earlier in the USER DIRECT file).

3 Link to the TCPMAINT 592 disk read-only for access to FTP and other TCP/IP

commands.

4 Define a 191 minidisk of size 20 cylinders from volume UM6289.

5 Define a 192 minidisk of size 300 cylinders (approximately 225 MB) from volume

UM6289 with the special read password of ALL, which allows read access from any

user ID without a disk password.

6 An empty comment line for better readability.

2. Whenever an MDISK statement is added or modified in the USER DIRECT file, always check

for overlapping cylinders and gaps (gaps will only leave empty disk space; however,

overlaps can occur because z/VM will allow you to

shoot yourself in the foot by defining

multiple minidisks over the same disk space). This is done with the DISKMAP command:

==> diskmap user

The minidisks with the END option specified in this directory will not be

includ

ed in the following DISKMAP file.

File USER DISKMAP A has been created.

3. The file created, USER DISKMAP, contains a mapping of all minidisk volumes defined in the

USER DIRECT file. It will list any overlaps or gaps found on the volumes. Edit the file and turn

off the prefix area with the XEDIT PREFIX OFF subcommand to view 80 columns:

==> x user diskmap

====> prefix off

4. Search for the text overlap with the / subcommand:

====> /overlap

You should see the error message DMSXDC546E Target not found. This means that no

minidisks are overlapping each other.

1 2 ... 72 73 74 75 76 77 78 79 80 81 82 ... 295 296

Commenti su questo manuale

Nessun commento

Red Hat LINUX VIRTUAL SERVER 4.6 - ADMINISTRATION Manuale di Installazione Pagina 77

Commenti su questo manuale

Prodotti e manuali riguardandi Software di system management Red Hat LINUX VIRTUAL SERVER 4.6 - ADMINISTRATION