Re: [ovirt-users] Difference between Disk ID of VM and Disk ID of snapshot
- Original Message - From: santosh sba...@commvault.com To: users@ovirt.org Sent: Friday, September 5, 2014 8:14:25 AM Subject: [ovirt-users] Difference between Disk ID of VM and Disk ID of snapshot Hi All, The disks IDs provided by following two APIs will be same or different? The same. The entities are differ by the image_id which is unique for each disk snapshot. SERVER:PORT/api/vms/VM_ID/snapshots/ID /disks SERVER:PORT/api/vms/VM_ID/disks Thanks, Santosh ***Legal Disclaimer*** This communication may contain confidential and privileged material for the sole use of the intended recipient. Any unauthorized review, use or distribution by others is strictly prohibited. If you have received the message by mistake, please advise the sender by reply email and delete the message. Thank you. ** ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] How to backup/restore the rhevm-VM in hosted-engine ?
- Original Message - From: Ryan Groten ryan.gro...@stantec.com To: Chao Xie xiec.f...@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.f...@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.gro...@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_Virtualization/3.4/html/Administration_Guide/chap-Backups.html From: users-boun...@ovirt.org [ mailto:users-boun...@ovirt.org ] On Behalf Of xiec.f...@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? ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users -- Didi ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Ovirt / RHEV interoperability
Hi Sven, I'm thinking mainly in terms of migrating from one to the other, which people sometimes have to, or want to, do. For various reasons it may not always be practical to do it in one clean step. e.g. If there is interoperability it would be possible to have zero down time by migrating one hypervisor at a time (or a few, depending in capacity). regards, John On 05/09/14 17:43, Sven Kieske wrote: Am 05.09.2014 06:50, schrieb John Gardeniers: Just curious and I'm not currently in a position to try it myself. Is there any interoperability between Ovirt and RHEV? In other words, can an Ovirt hypervisor work with a REV engine or can a RHEV hypervisor work with a RHEV engine? In theory and maybe in real world this could work, however I don't think you could get much support from red hat for your rhev/m in such a setup. So I really don't see the scenario you want to deploy? If you need paid support, buy it, if not, stick with ovirt? HTH ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Issues with Storage domain
- Original Message - From: Carlos A. Diaz carlos_...@yahoo.com To: users@ovirt.org Sent: Friday, September 5, 2014 9:36:42 PM Subject: [ovirt-users] Issues with Storage domain Hello everyone, its my first time here; so I hope I am on the right place I had a problem where one of our SysAdmins cloned our NFS production export in order to create a new NFS export, but he didn't changed the FSID, so we ended up with 2 nfs exports using the same ID. I was able to roll back and recover the data, once I had corrected everything I went to the hosts and unpaused the VMs from the CLI (I lost the engine in the process), so now we are back up and running. My problem right now is that oVirt says that our main storage domain is Down and I can't bring it up, so essentially I cannot start any VMs on that domain, which hosts 90% of our production environment; which is also scary because I am not sure how to recover from this error without affecting my production environment. My guess is that at some point the MD5 hash changed, or something in the metadata for that Domain, but I don't know if this is the problem and if recreating the signature is possible without breaking my existing configuration. Is there anyway to mark it as UP from the database or at any other level without breaking (more) the config? Hi Carlos, Please attach engine.log and vdsm.log, hopefully we can understand from the logs why you cannot activate the storage domain. Thanks, Nir ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
