## Augmentation de la ram

## Augmentation du cpu

## Augmentation de la bande passante



* couper un zs
  xm destroy zsX

* starter un zs
  xm create /home/xen/confdomU/zs1

* lister les zs qui tournent
  xm list

* augmenter la RAM
  xm mem-set zsX 1024
  xm mem-set zsX 512

  virsh setmaxmem zs1 2048000
  virsh setmem zs1 2048000


* augmenter le nombre de vcpu


* lire la config en cours d'utilisation sur un zs
  xm list # permet de lister la ram utilisé et le nombre de vcpu

## uptime                                                                                                                                                                        xm uptime     


#### CPU ####
## Lister le poid cpu de chaque zs
  xm sched-credit -d zsX

## un zs ne peut utiliser par defaut que x% d'un coeur
  xm sched-credit -d zsX -c 50 # 50% d'un coeur max
  xm sched-credit -d zsX -c 200 # maximum 2-CPU

## lister les CPU alloués à un ZS
  xm vcpu-list zsX

## Allouer un nombre n de cpu a un guest :
  xm vcpu-set zsX n

#### pour 22 parts / xen0 ####

  xm mem-set zsX 512           ## 512 de ram / guest
  xm vcpu-set zsX 1            ## pas plus d'un CPU virtuel / guest
  xm sched-credit -d zsX -c 50 ## Un guest peut consomer maxi 50% d'un core

#### HDD ####

## statistique hdd
  virsh # domblkstat zs1 sda1

### Attacher un nouveau device a un zs.
  virsh attach-disk 5 /dev/mapper/zs-zs2--2 sda2 --driver phy
  
  
  
#### Une conf supra simple exemple de domU géré avec xm ####
<code>
kernel = "/root/kernelU/boot/vmlinuz-2.6.31.6"
memory = 512
name   = "zs1"
vif  = [ 'ip=81.93.248.161' ]
ip="81.93.248.161"
disk = [ 'phy:zs/zs1,sda1,w' ]                                                                                                                         
root   = "/dev/xvda1 ro"
</code>

#### Une conf de dom0 qui n'est pas faite avec du bridge à la con qui pue. #####

* xend-config.sxp

<code>
(logfile /var/log/xen/xend.log)
(loglevel DEBUG)
(xend-unix-server yes)
(xend-unix-path /var/lib/xend/xend-socket)
(xend-relocation-hosts-allow '^localhost$ ^localhost\\.localdomain$')
(network-script 'network-route netdev=eth0')
(vif-script     vif-route)
(dom0-min-mem 512)
(enable-dom0-ballooning yes)
(dom0-cpus 0)
(vncpasswd '')
</code>


##### zs1.xml niquel pour la libvirt qui rox ####

* zs1.xml

<code>
<domain type='xen' id='5'>
  <name>zs1</name>
  <uuid>ed0a5cf4-0098-45e5-2d62-1068c1610f28</uuid>
  <memory>524288</memory>
  <currentMemory>524288</currentMemory>
  <vcpu>1</vcpu>
  <bootloader></bootloader>
  <os>
    <type>linux</type>
    <kernel>/root/kernelU/boot/vmlinuz-2.6.31.6</kernel>
    <cmdline>root=/dev/xvda1 ro ip=81.93.248.161:127.0.255.255::::eth0:off </cmdline>
  </os>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <devices>
    <disk type='block' device='disk'>
      <driver name='phy'/>
      <source dev='nbd1'/>
      <target dev='sda1' bus='scsi'/>
    </disk>
    <interface type='ethernet'>
      <mac address='00:16:3e:29:1c:a3'/>
      <ip address='81.93.248.161'/>
      <script path='/etc/xen/scripts/vif-route'/>
      <target dev='vif5.0'/>
    </interface>
    <console type='pty' tty='/dev/pts/1'>
      <source path='/dev/pts/1'/>
      <target port='0'/>
    </console>
  </devices>
</domain>

</code>


* centoszs.pl

<code>
#!/usr/bin/perl
use strict;

#### Variables #####
my ($hostname,$domaine,$ip,$mask,$network,$brd,$route,$passwd,$dns) = @ARGV;

################## REDHAT Like #############################
#######################################################
### script d'installation des ZS
#######################################################

open(HOST, ">/etc/hostname");
print HOST "$hostname.$domaine\n";
close(HOST);

open(HOSTS, ">/etc/hosts");
print HOSTS "127.0.0.1       localhost\n";
print HOSTS "$ip   $hostname.$domaine $hostname\n";
print HOSTS "# IPV6 versions of localhost and co\n";
print HOSTS "::1 ip6-localhost ip6-loopback\n";
print HOSTS "fe00::0 ip6-localnet\n";
print HOSTS "ff00::0 ip6-mcastprefix\n";
print HOSTS "ff02::1 ip6-allnodes\n";
print HOSTS "ff02::2 ip6-allrouters\n";
print HOSTS "ff02::3 ip6-allhosts\n";
close(HOSTS);

open(NET, ">/etc/sysconfig/network-scripts/ifcfg-eth0");
print NET "# \The primary network interface\n";
print NET "DEVICE=eth0\n";
print NET "BOOTPROTO=static\n";
print NET "IPADDR=$ip\n";
print NET "NETMASK=$mask\n";
print NET "ONBOOT=yes\n";
print NET "GATEWAY=$route\n";
print NET "TYPE=Ethernet\n";
close(NET);

open(DNS, ">/etc/resolv.conf");
print DNS "search $domaine\n";
print DNS "nameserver $dns\n";
print DNS "domain $domaine\n";
close(DNS);

##### Configuration du mot de passe root
#####
my $commande = "echo 'root:$passwd' | chpasswd";
my $resultat = system($commande);

##
## On set la route par defaut
#
my $droute = "route add default gw $route";
my $result = system($droute);
</code>

* debianzs.pl

<code>
#!/usr/bin/perl
use strict;

#### Variables #####
my ($hostname,$domaine,$ip,$mask,$network,$brd,$route,$passwd,$dns) = @ARGV;

################## DEBIAN #############################
#######################################################
### script d'installation des ZS
#######################################################

open(HOST, ">/etc/hostname");
print HOST "$hostname.$domaine\n";
close(HOST);

open(HOSTS, ">/etc/hosts");
print HOSTS "127.0.0.1       localhost\n";
print HOSTS "$ip   $hostname.$domaine $hostname\n";
print HOSTS "# IPV6 versions of localhost and co\n";
print HOSTS "::1 ip6-localhost ip6-loopback\n";
print HOSTS "fe00::0 ip6-localnet\n";
print HOSTS "ff00::0 ip6-mcastprefix\n";
print HOSTS "ff02::1 ip6-allnodes\n";
print HOSTS "ff02::2 ip6-allrouters\n";
print HOSTS "ff02::3 ip6-allhosts\n";
close(HOSTS);

open(NET, ">/etc/network/interfaces");
print NET "auto lo\n";
print NET "iface lo inet loopback\n";
print NET "# \The primary network interface\n";
print NET "auto eth0\n";
print NET "iface eth0 inet static\n";
print NET "address $ip\n";
print NET "netmask $mask\n";
print NET "network $network\n";
print NET "broadcast $brd\n";
print NET "gateway $route\n";
close(NET);

open(DNS, ">/etc/resolv.conf");
print DNS "search $domaine\n";
print DNS "nameserver $dns\n";
print DNS "domain $domaine\n";
close(DNS);

##### Configuration du mot de passe root
#####
my $commande = "echo 'root:$passwd' | chpasswd";
my $resultat = system($commande);

##
## On set la route par defaut
#
my $droute = "route add default gw $route";
my $result = system($droute);

</code>

* gentoozs.pl

<code>
#!/usr/bin/perl
use strict;

#### Variables #####
my ($hostname,$domaine,$ip,$mask,$network,$brd,$route,$passwd,$dns) = @ARGV;

################## GENTOO #############################
#######################################################
### script d'installation des ZS
### Ce script prend en parametre :
### $1 hostname
### $2 domaine
### $3 ip/mask
### $4 route
### $5 mot de passe root du zs
### $6 dns
#######################################################


## On set le hostname du zs
open(HOST, ">/etc/conf.d/hostname");
print HOST "HOSTNAME=\"$hostname\"\n";
close(HOST);

## on set le resolve.conf
open(RESOLV, ">/etc/resolv.conf");
print RESOLV "nameserver $dns\n";
close(RESOLV);

##### On configure son hosts
#####
open(HOSTS, ">/etc/hosts");
print HOSTS "127.0.0.1       localhost\n";
print HOSTS "$ip  $hostname.$domaine $hostname\n";
print HOSTS "# IPV6 versions of localhost and co\n";
print HOSTS "::1 ip6-localhost ip6-loopback\n";
print HOSTS "fe00::0 ip6-localnet\n";
print HOSTS "ff00::0 ip6-mcastprefix\n";
print HOSTS "ff02::1 ip6-allnodes\n";
print HOSTS "ff02::2 ip6-allrouters\n";
print HOSTS "ff02::3 ip6-allhosts\n";
close(HOSTS);

##### Configuration du reseau des zs gentoo
#####
open(NET, ">/etc/conf.d/net");
print NET "config_eth0=( \"$ip netmask $mask brd $brd\" )\n";
print NET "routes_eth0=( \"default gw $route\" )\n";
print NET "dns_domain_eth0=\"$domaine\"\n";
print NET "dns_servers_eth0=\"$dns\"\n";
close(NET);

##### Configuration du mot de passe root
#####
my $commande = "echo 'root:$passwd' | chpasswd";
my $resultat = system($commande);

## On set la route par defaut
my $droute = "route add default gw $route";
my $result = system($droute);
</code>