----- Original Message -----
From: "Ryan Groten" <Ryan.Groten@stantec.com> To: "Chao Xie" <xiec.fnst@cn.fujitsu.com>, users@ovirt.org Sent: Friday, September 5, 2014 5:27:06 PM Subject: Re: [ovirt-users] How to backup/restore the rhevm-VM in hosted-engine ?
In my case I actually have a spare server (physical) that I keep patched and up-to-date, the engine backups are automatically transferred there. If my hosted-engine goes down I restore the engine database on the physical spare and run like that until I can get the hosted-engine back up.
I’ve never tried restoring onto a newly deployed hosted-engine VM using hosted-engine --deploy, but I can’t see why that wouldn’t work (maybe someone else knows if this is possible?). I’ll give it a try too.
Please see also [1] which describes a similar flow. I never tried your exact flow. Main difference is that the database already has the engine's VM and "knows" it's a hosted engine. [1] http://www.ovirt.org/Migrate_to_Hosted_Engine -- Didi
From: Xie, Chao [mailto:xiec.fnst@cn.fujitsu.com] Sent: September-05-14 3:23 AM To: Groten, Ryan; users@ovirt.org Subject: 答复 : How to backup/restore the rhevm-VM in hosted-engine ?
Hi, Ryan
Thanks for replying. I know your meaning and engine-backup command. But I have some questions with your way: “ If the hosted-engine needs to be restored for some reason I will just recreate the OS and restore the engine database ”.
Do you recreate the Guest using original host? And the host needn’t to be fresh installed and just excute hosted-engine –deployed again, we can recreate another OS?
发件人 : Groten, Ryan [ mailto:Ryan.Groten@stantec.com ] 发送时间 : 2014 年 9 月 5 日 4:29 收件人 : Xie, Chao/ 谢 超 ; users@ovirt.org 主题 : RE: How to backup/restore the rhevm-VM in hosted-engine ?
In 3.4 there is a backup/restore utility called engine-backup. You can use this to backup the RHEV-M database(s) as well as restore. Of course this won’t backup the Guest OS itself.
My DR strategy is to simply copy off these engine-backup files to another location. If the hosted-engine needs to be restored for some reason I will just recreate the OS and restore the engine database.
Check this link for documentation:
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Virtualizat...
From: users-bounces@ovirt.org [ mailto:users-bounces@ovirt.org ] On Behalf Of xiec.fnst@cn.fujitsu.com Sent: September-03-14 9:54 PM To: users@ovirt.org Subject: [ovirt-users] How to backup/restore the rhevm-VM in hosted-engine ?
Hi,All
As the mauual, I can’t find anyway to backup/restore the rhevm-VM in the hosted-engine. The I just try to backup the storage of rhevm-VM (using cp –prf to make a copy of folder). Then I make some change and replace the origin RHEVM-VM content with my backup folder (of course I shutdown the rhevm-vm first). At last the vm can be up,but the status is NOT health but as below:
====================
Status up-to-date : False
Hostname : 193.168.195.248
Host ID : 1
Engine status : unknown stale-data
Score : 2400
Local maintenance : False
Host timestamp : 1409743461
Extra metadata (valid at timestamp):
metadata_parse_version=1
metadata_feature_version=1
timestamp=1409743461 (Wed Sep 3 07:24:21 2014)
host-id=1
score=2400
maintenance=False
state=EngineUp
=============================
So are there some proper way to backup the rhevm-vm?
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-- Didi