Differences

This shows you the differences between two versions of the page.

--- virtualization:xenserver:xenserver_backup [2015/04/20 09:40]
gcooper
+++ — (current)
@@ Line 1: / Line 1: @@
-====== Free XenServer Backup System ======
-**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 for a XenServer pool from a single XenServer host.
-:!: 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 =====
-{{ :virtualization:xenserver:drive-backup-icon.png?200|}}
-  - The local Dom0 on the XenServer pool master 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, generally the pool master.  This script runs in Dom0 on a XenServer.
-:!: Here we assume you have a shared NFS folder ''/backup/xenserver-backup/VA-Hosting-Pool'' on IP address ''10.10.1.9'' and a XenServer pool named ''VA-Hosting-Pool''.
-Mount the NFS share:
-<file>
-mkdir /mnt/backup
-vi /etc/fstab
-</file>
-Append:
-<file>
-# Mount the backup share
-ip.of.nfs.svr:/path/to/backup/share  /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>
-cd /opt/backup
-vi cleanup.sh
-vi audit.sh
-vi meta-backup.sh
-vi mailheader.txt
-vi vm_backup.cfg
-vi vm_backup.sh
-</file>
-===== Testing =====
-Run the cleanup script and check for an e-mail message:
-<file>
-./cleanup.sh
-</file>
-Run the audit script and check for an e-mail message:
-<file>
-./audit.sh
-</file>
-Then run the metadata backup script.  This will take longer, so let it run.
-<file>
-./meta-backup.sh
-</file>
-Now, make sure you have ''vm_backup.cfg'' set to only back up a limited set of VMs and try:
-<file>
-./vm_backup.sh
-</file>
-===== Configure Scheduling =====
-:!: The ''/2'' in the below makes the backups only happen every other day.  Remove the ''/2'' for every day.
-This will add ''cron'' jobs to run backups every other day starting at 10:00pm:
-<file>
-cat << EOF > /etc/cron.d/backup.cron
-# XenServer VM Backup Scheduling
-22 */2 * * root /opt/backup/cleanup.sh
-22 */2 * * root /opt/backup/audit.sh
-22 */2 * * root /opt/backup/meta-backup.sh
-23 */2 * * root /opt/backup/vm_backup.sh
-EOF
-</file>
-===== Backup Your Backup Scripts =====
-Do this on each XenServer backup host (pool master) to back up your backup scripts and configuration to a ''Scripts'' folder on the backup share:
-<file>
-# This assumes the backup share is mountable via ''/etc/fstab''
-mount /mnt/backup
-mkdir -p /mnt/backup/Scripts/
-cp -a /sbin/dbtool /mnt/backup/Scripts/
-cp -a /etc/fstab /mnt/backup/Scripts/
-cp -a /opt/backup/Scripts/* /mnt/backup/Scripts/
-cp -a /etc/ssmtp/ssmtp.conf /mnt/backup/Scripts/
-</file>

Virtual Architects Support Wiki

User Tools

Site Tools

Differences

Page Tools