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--- virtualization:xenserver:xenserver_backup [2014/08/21 11:14]
gcooper
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-====== XenServer Backup ======
-**Main Reference Article**: http://www.charleslabri.com/back-up-xenserver-6-to-network-share-with-fancy-scripting-and-lots-of-fun-and-no-downtime/
-**Backup**: http://www.8layer8.com/?p=260
-**Restore**: http://www.8layer8.com/?p=200
-:!: You can back up all the VM's, XenServer hosts, and metadata from a single XenServer host in a XenServer pool.
-:!: Consider this a disaster recovery backup.  Use a file-by-file backup such as Ahsay for daily needs.
-:!: Here we use an NFS mount for backup storage.
-:!: XVA backups are compressed on the fly.
-:!: This is a no-downtime script set; it backs up the VM "live" by taking a snapshot, and then exporting that snapshot to a mount point on Dom0.
-===== The Basic Idea =====
-  - The local Dom0 on the XenServer runs cron
-  - The ''cleanup.sh'' file runs and removes old data and emails regarding what happened previously
-  - The ''audit.sh'' runs and outputs the info via e-mail to the backup admin
-  - The ''meta-backup.sh'' runs and backs up Dom0 and the XenServer database and structure
-  - The ''vm_backup.sh'' runs and backs up the VMs running on the host
-    - enters the correct directory
-    - sources the ''.lib'' and the ''.cfg'' files
-    - determines what is to be backed up from the ''vm_backup.cfg'' file
-    - calls for a backup (via live snapshot/export)
-    - outputs to a log
-===== Prepare the NFS Mount and Test a Manual Backup =====
-:!: Choose one of your XenServers to be the backup server.  This script runs in Dom0 on a XenServer.
-:!: Here we assume you have a XenServer pool named ''VA-Hosting-Pool'' on IP address ''10.10.1.9'' and a shared NFS folder ''/backup/xenserver-backup/VA-Hosting-Pool''.
-Mount the NFS share:
-<file>
-mkdir /mnt/backup
-vi /etc/fstab
-</file>
-Append:
-<file>
-#
-# Mount the backup share
-.10.1.9:/backup/xenserver-backup/VA-Hosting-Pool /mnt/backup nfs _netdev 0 0
-</file>
-Mount the share, check it's mounted and test a manual backup:
-<file>
-mount -a
-mount
-xe vm-export vm="<your-vm-name>" filename=/mnt/backup/"<your-vm-name>".xva
-</file>
-===== Get Mail Working =====
-see also **[[networking:linux:ssmtp|SSMTP]]**
-Modify ''ssmtp.conf'' as necessary:
-<file>
-vi /etc/ssmtp/ssmtp.conf
-root=adminuser@yourdomain.com
-mailhub=mail.yourdomain.com:465
-RewriteDomain=yourdomain.com
-FromLineOverride=YES
-UseTLS=YES
-AuthUser=smtpuser
-AuthPass=smtppass
-</file>
-===== Install the Scripts on the Backup Server =====
-<file>
-mkdir -p /opt/backup && cd /opt/backup
-wget https://www.dropbox.com/s/0fyijjlv30mc413/XenServerBackup.zip?dl=1 -O XenServerBackup.zip
-unzip XenServerBackup.zip
-rm -rf __MACOSX/
-chmod +x *.sh
-chmod +x dbtool
-cp -a ./dbtool /sbin/dbtool
-</file>
-===== Configure the Scripts on the Backup Server =====
-:!: You might want to use IP addresses to control which network interfaces are used for the backups.
-Change the names and filenames to the names you have for your XenServers according to the article:
-<file>
-vi audit.sh
-vi cleanup.sh
-vi meta-backup.sh
-vi mailheader.txt
-vi vm_backup.cfg
-</file>
-====== Old Page Contents Below ======
-Old but good list of XenServer backup options:
-http://sysadminnotebook.blogspot.com/2011/05/xenserver-backup-solutions.html
-===== Local Backup Disk or CIFS Share =====
-http://www.computerforums.org/forums/server-articles/how-setup-live-xenservers-backups-208663.html
-  * The ''CLEARDOWN.sh'' script reclaims disk space from deleted snapshots
-  * ''startvmbackup.sh'' is the script that will start the live backups of our XenServer VMs
-==== Install on the XenServer Host ====
-<file>
-mkdir /home/backup
-mkdir /VM_Backup
-# Use a command like this if you want to send backups to a CIFS share
-#mount -t cifs "//192.168.0.20/VM_Backup" -o username=username,password=password /VM_Backup
-cd /VM_Backup
-wget http://www.andy-burton.co.uk/files/xenserver_backup/xenserver_backup.tar.gz
-tar -xzf xenserver_backup.tar.gz
-chmod 777 v*
-</file>
-=== startvmbackup.sh ===
-<file>
-vi /home/backup/startvmbackup.sh
-</file>
-<file>
-#!/bin/bash
-set -x
-# Dismount then remount backup share to be sure it's mounted
-umount -f /VM_Backup
-#mount -t cifs "//192.168.0.20/VM_Backup" -o username=username,password=password /VM_Backup
-/VM_Backup/CLEARDOWN.sh
-/VM_Backup/vm_backup.sh
-/VM_Backups/CLEARDOWN.sh
-sleep 120
-/VM_Backups/CLEARDOWN.sh
-</file>
-<file>
-chmod 777 /home/backup/startvmbackup.sh
-</file>
-=== CLEARDOWN.sh ===
-<file>
-vi /VM_Backup/CLEARDOWN.sh
-</file>
-<file>
-#!/bin/bash
-coalesce-leaf -u $uuid
-coalesce-leaf -u $uuid
-coalesce-leaf -u $uuid
-xe host-call-plugin host-uuid=$VM_XENUUID plugin=coalesce-leaf fn=leaf-coalesce args:vm_uuid=$uuid
-xe host-call-plugin host-uuid=$VM_XENUUID plugin=coalesce-leaf fn=leaf-coalesce args:vm_uuid=$uuid
-xe host-call-plugin host-uuid=$VM_XENUUID plugin=coalesce-leaf fn=leaf-coalesce args:vm_uuid=$uuid
-</file>
-<file>
-chmod 777 /VM_Backup/CLEARDOWN.sh
-</file>
-==== Configure The Scripts ====
-Edit the ''vm_backup.cfg'' file:
-<file>
-vi /VM_Backup/vm_backup.cfg
-</file>
-Insert these two lines in the ''Settings'' section:
-<file>
-#
-# Settings
-#
-VM_XENHOST=$(xe vm-list | grep 'Control domain on host' | awk -F ': ' '{ print $3 }')
-VM_XENUUID=$(xe vm-list params uuid=$(xe vm-list | grep -B1 $VM_XENHOST | grep uuid | awk -F ': ' '{ print $2 }') | grep resident-on | awk -F ': ' '{ print $2 }')
-</file>
-Set log path:
-<file>
-log_path="/VM_Backup/"$VM_XENHOST"/"$date".log"
-</file>
-Set the backup destination:
-<file>
-backup_dir="/VM_Backup/"$VM_XENHOST"/"
-</file>
-Ensure only running VMs are backed up:
-<file>
-backup_vms="running"
-</file>
-Edit the ''vm_backup.lib'' file:
-<file>
-vi /VM_Backup/vm_backup.lib
-</file>
-Search for this line and add below it in the same if/then stanza:
-<file>
-log_message "VM $uuid backup failed"
-</file>
-<file>
-                                xe host-call-plugin host-uuid=$VM_XENUUID plugin=coalesce-leaf fn=leaf-coalesce args:vm_uuid=$uuid
-                                sleep 10
-                                xe host-call-plugin host-uuid=$VM_XENUUID plugin=coalesce-leaf fn=leaf-coalesce args:vm_uuid=$uuid
-                                sleep 10
-                                xe host-call-plugin host-uuid=$VM_XENUUID plugin=coalesce-leaf fn=leaf-coalesce args:vm_uuid=$uuid
-</file>
-Search for this line and add below it in the same if/then stanza:
-<file>
-log_message "VM $uuid backup succeeded"
-</file>
-<file>
-                                xe host-call-plugin host-uuid=$VM_XENUUID plugin=coalesce-leaf fn=leaf-coalesce args:vm_uuid=$uuid
-                                sleep 10
-                                xe host-call-plugin host-uuid=$VM_XENUUID plugin=coalesce-leaf fn=leaf-coalesce args:vm_uuid=$uuid
-                                sleep 10
-                                xe host-call-plugin host-uuid=$VM_XENUUID plugin=coalesce-leaf fn=leaf-coalesce args:vm_uuid=$uuid
-</file>

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