XenServer – 工作心得

XenServer 6.x/7.x 更新patch script

#!/bin/bash
PATCH=(
XS70E002
XS70E003
XS70E004
XS70E006
XS70E007
XS70E008
XS70E009
XS70E010
XS70E011
XS70E012
XS70E013
XS70E014
XS70E015
XS70E016
XS70E017
XS70E019
XS70E020
XS70E021
XS70E022
XS70E023
)

for i in ${PATCH[@]};do
  PATCH_UUID=`xe patch-upload file-name=$i.xsupdate`
  echo $PATCH_UUID
  xe patch-pool-apply uuid=$PATCH_UUID
done

CentOS 7 調整text console解析度

環境

XenServer 7.0下面的CentOS7虛擬機

編輯/etc/default/grub，加入video=640×480

GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb quiet video=640x480"
GRUB_DISABLE_RECOVERY="true"

grub2-mkconfig -o /boot/grub2/grub.cfg
reboot

參考

https://www.centos.org/forums/viewtopic.php?t=48413

將VM從XenServer批次搬移到另一台XenServer

環境

兩台XenServer需在同一個pool

#!/bin/bash
if [ $# -eq 0 ]; then
  echo "Usage: $0 <Host UUID(SRC)> <Host UUID(Dest)>"
else

  SRC_HOST=$1
  DST_HOST=$2

  VM=$(xe vm-list resident-on=$SRC_HOST is-control-domain=false params=uuid|grep uuid|awk '{print $5}')

  for i in ${VM[@]};do
     echo -n "xenmotion: $i ...."
     xe vm-migrate uuid=$i host=$DST_HOST --live
     #echo "xe vm-migrate uuid=$i host=$DST_HOST --live"
     echo "Done"
  done
fi

XenServer 6.2 NFS SR無法移除解法

問題:

供裝/刪除VM時NFS Storage本身或是Storage網路有問題，導致供裝/刪除VM程序不完整，此時會造成VM上Disk相關資訊殘留在XenServer上

參考資料:
http://playingwithtechnology.com/unable-to-delete-xenserver-vdi/
http://discussions.citrix.com/topic/307439-vdi-in-use-but-its-not-really/

解法:

#找到要修復的SR UUID
xe sr-list|grep omnios-zfs01 -B 3

#列出此SR內之vdi
xe vdi-list sr-uuid=d034edd0-aa37-be67-ef99-abb1e89e88ba

#找到要刪除之vdi uuid後先嘗試刪除
xe vdi-destroy uuid=777f68db-0260-448c-a93c-cd610a734aff

#若無法直接刪除則需找到vbd uuid將其unplug及destroy
xe vbd-list vdi-uuid=777f68db-0260-448c-a93c-cd610a734aff
xe vbd-unplug uuid=ba59a452-ee88-d51c-998e-125511e4c80c
xe vbd-destroy uuid=ba59a452-ee88-d51c-998e-125511e4c80c

圖檔補充說明:

XenServer 6.2.0 使用xe指令調整網卡MTU

#找到要改的網卡uuid
xe network-list
#修改設定
xe network-param-set uuid=4da7ab89-924e-423a-5c4d-b8c0c612c9ee MTU=9000

reboot設備

XenServer VM調整CPU Socket/Cores對應比備忘

參考:
CTX126524

xe vm-param-set platform:cores-per-socket=4 uuid=<VM UUID>

使用XenServer xe指令批次複製VM

#!/bin/bash
#TEMPLATE_VM='a1fb3f33-2fd4-6aef-13d9-39a61335425e'
TEMPLATE_VM='6ef7a6a2-d44c-38ca-2cb2-cdcd24cea59b'
SR_UUID='14640e93-6b38-99e9-5ec3-3074fd8408d9'
for i in {1..18}
do
   SERIAL=`printf %03d $i`
   echo -n "Cloning lab-linux-$SERIAL ...."
   xe vm-copy new-name-label=lab-linux-$SERIAL vm=$TEMPLATE_VM sr-uuid=$SR_UUID
   echo "done"
done