<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Sep 2, 2016 at 8:20 AM, <span dir="ltr"><<a href="mailto:aleksey.maksimov@it-kb.ru" target="_blank">aleksey.maksimov@it-kb.ru</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello oVirt guru`s !<br>
<br>
As described in <a href="https://www.ovirt.org/documentation/admin-guide/hosted-engine-backup-and-restore/" rel="noreferrer" target="_blank">https://www.ovirt.org/<wbr>documentation/admin-guide/<wbr>hosted-engine-backup-and-<wbr>restore/</a><br>
the backup process consists of three phases:<br>
<br>
1) On some oVirt Host:<br>
# hosted-engine --set-maintenance --mode=global<br>
<br>
2) On oVirt Hosted Engine VM:<br>
# service ovirt-engine stop<br>
# engine-backup --mode=backup --scope=all --file=/mnt/nfsshare/backup.<wbr>tar --log=/mnt/nfsshare/backup.log<br>
# service ovirt-engine start<br>
<br>
3) On some oVirt Host:<br>
# hosted-engine --set-maintenance --mode=none<br>
<br>
As I understand it, the first and the third phase are performed on any oVirt Host.<br>
The second phase runs inside oVirt Hosted Engine VM.<br>
Because hosted-engine command not provided on Hosted Engine VM :(<br>
<br>
I have a few questions.<br>
<br>
1) For what stop is executed for ovirt-engine service before engine-backup?<br>
I found an interesting script <a href="http://learnlinuxchennai.blogspot.ru/2015/08/ovirt-manager-backup-script.html" rel="noreferrer" target="_blank">http://learnlinuxchennai.<wbr>blogspot.ru/2015/08/ovirt-<wbr>manager-backup-script.html</a><br>
But the script is not specified stop ovirt-engine service before engine-backup.<br></blockquote><div><br></div><div>The backup of the engine DB is a single transaction by itself but we are, optionally, saving a backup of DWH and reports DB with different commands and so having it down is safer.</div><div>On the other side, this require the global maintenance mode since otherwise, if the engine downtime due to backup creation is too long, the ha-agent will reboot the engine VM to ensure HA.</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
2) Is it possible within a single script to organize all oVirt HE Backup Workflow (phase 1, then phase 2, then phase 3)<br>
Perhaps there is an example of such a script?<br></blockquote><div><br></div><div>You should be able to require the global maintenance mode from the engine also via REST API.</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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