Re: [ovirt-users] VM Deployment By Template
Punit, What file system is your VM's partition, what operating system and version ? A question to others, if the doco says we support disk resize since 3.4, for what virtual disk type, and which operating systems and their partition types are supported by this. I would have believed you would needed to have used LVM and then add the new disk space as a new LUN, and map the new lun, while also using a file system that allows for expansion. Some file systems like XFS can be extended (i.e. grow) while being mounted. This is about the limit of my knowledge so if you know more, please let us know what is possible. 3. we support disk resize since 3.4 (iirc), which you can do post VM provisioning. http://www.gnu.org/software/parted/manual/html_node/parted_31.html Grow partition 1, into the adjacent free space: (parted) resize 1 0.063 874.9http://geekpeek.net/resize-filesystem-fdisk-resize2fs/ http://www.linuxuser.co.uk/features/resize-your-disks-on-the-fly-with-lvm http://docs.oracle.com/cd/E37670_01/E37355/html/ol_grow_xfs.html You can use the xfs_growfs command to increase the size of a mounted XFS file system if there is space on the underlying devices to accommodate the change. http://www.ovirt.org/Features/Online_Virtual_Drive_Resize Features/Online Virtual Drive Resize QEMU-GA * support for notifying the guest and updating the size of the visible disk: [Yet?] To be integrated http://serverfault.com/questions/122042/kvm-online-disk-resize AFAIK, this is not possible -- you can add new disk images, and as you point out you could also add new images to an LVM volume, but in order to resize an active, bootable disk image you need to be able to shut it down and edit the partitions. It is possible to move a Linux system between disks while it's running. The limitation is that you cannot alter partitions on a disk that has partitions in use. To do this your root filesystem must be on an LVM, this often means that you have to have a separate boot filesystem (this is not, however, essential, it just makes things easier) At Thursday, 28-08-2014 on 16:49 Shahar Havivi wrote: On 28.08.14 11:05, Punit Dambiwal wrote: Hi All, Please help me to solve this problem...or suggest me any workaround ?? Thanks, Punit On Wed, Aug 27, 2014 at 8:01 PM, Karli Sjöberg wrote: On Wed, 2014-08-27 at 19:52 +0800, Punit Dambiwal wrote: Hi Itamar, It's the same as i used and discussed in last reply...create the VM with 1GB virtual template and expand the disk size after deployment...but the problem here is disk will expand or resize...but it will not make any changes in the existing partition table..that means after expand disk all the existing partition will remain samethen you need to manual login in to server and make the changes with the help of fdisk and lvm commands.. I am looking for the way we can resize the disk...and at the same time when the disk will expand...it should be resize the partition table... I think this is what you were after: QEMU-GA support for notifying the guest and updating the size of the visible disk: To be integrated So maybe you could post an RFE on that for qemu-ga? Help testing? /K Is the cloud-init...custom script can do this or not ?? You may be able to do that with cloud-init custom-script section, The following link will show you how to add a file to the client, you may write a code that change the partition table, you need to make the file executable and put it in a init section (such as /etc/init.d sections), the only problem is that it may be too late since cloud-init may be loaded after that phase... (so maybe other place...) http://cloudinit.readthedocs.org/en/latest/topics/examples.html#writing-out-arbitrary-files Another option is to set a command under this section: http://cloudinit.readthedocs.org/en/latest/topics/examples.html#run-commands-on-first-boot Shahar. Thanks, Punit On Wed, Aug 27, 2014 at 6:11 PM, Itamar Heim wrote: On 08/27/2014 12:47 PM, Punit Dambiwal wrote: Hi Itamar, To edit the disk size are you referring this Another way i got is create the VM with 1GB virtual template and expand the disk size after deployment...but the problem here is disk will expand...but it will not done any changes in the existing partition table..that means after expand disk you need to manual login in to server and make the changes with the help of fdisk and lvm commands... Or it's different then the upper one...please let me know how to perform
[ovirt-users] Power Management with UPS Network UPS Tools (NUT)
I would like to implement Power Management using an Eton E5 UPS, if this is not possible then I would like to know what UPS systems can be easily used with oVirt. Can someone point me to information on how to configure the UPS, CentOS 6.5 (preferably), and oVirt to use the UPS system, so that I could purchase, install and implement the UPS. If anyone has information regarding UPS, please reply to this email with links to the information. Can oVirt use Network UPS Tools (NUT) for Power Management ? If so, is there any documentation on this subject that you could provide links to, please. http://www.ovirt.org/Features/HostPowerManagementPolicy http://www.howtoforge.com/network-ups-tools-nut-for-usb-upss-on-centos-5.5 http://www.networkupstools.org/docs/user-manual.chunked/ar01s05.html http://www.networkupstools.org/features.html http://www.ovirt.org/Automatic_Fencing So far the most common statement I have found is Ignore the warning about power management, but this is not what I want to do. http://www.r11networks.com/2013/04/ovirt-installation-guide/ http://www.ovirt.org/DraftAdministrationGuide http://www.ovirt.org/DraftAdministrationGuide#Host_Power_Management_settings_explained Choose one of the following: * apc - APC MasterSwitch network power switch. Not for use with APC 5.x power switch devices. * apc_snmp - Use with APC 5.x power switch devices. * bladecenter - IBM Bladecentre Remote Supervisor Adapter. * cisco_ucs - Cisco Unified Computing System. * drac5 - Dell Remote Access Controller for Dell computers. * drac7 - Dell Remote Access Controller for Dell computers. * eps - ePowerSwitch 8M+ network power switch. * hpblade - HP BladeSystem. * ilo, ilo2, ilo3, ilo4 - HP Integrated Lights-Out. * ipmilan - Intelligent Platform Management Interface and Sun Integrated Lights Out Management devices. * rsa - IBM Remote Supervisor Adaptor. * rsb - Fujitsu-Siemens RSB management interface. * wti - WTI Network PowerSwitch. CONFIGURING HOST POWER MANAGEMENT SETTINGS Summary Configure your host power management device settings to perform host life-cycle operations (stop, start, restart) from the Administration Portal. It is necessary to configure host power management in order to utilize host high availability and virtual machine high availability. ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
[ovirt-users] When will oVirt supporing installation to Red Hat 7 and CentOS 7 be released.
I have been testing oVirt installations with CentOS 6.5 as the automated installation for this version is easy to implement. I am wondering when there will be installation packages for CentOS 7 ? ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
[ovirt-users] The roles of DRDB and Gluster in oVirt for High Availability
If anyone has the knowledge and time, I would be interested to read about if DRDB is used with oVirt, and since I have read that Gluster is used with oVirt, but just how does Gluster help provide High Availability? I would like to set up a two physical server HA solution (similar to or using the Self Hosted engine). Where each server is monitoring the other, using block replication so that each keep a copy of the other server's running virtual machine's virtual storage (e.g. virtual hard disks), and I guess for HA it would require both physical servers to be running the same virtual machine instance, where the production or active VM (memory) is being replicated into the secondary or standby server. However my actual needs would easily be supported by a simpler approach, oVirt now has the scheduling capability to flag individual VMs for high availability. In the event of a host failure, these VMs are rebooted on an alternate hypervisor host, however I don't know how the VM would be rebooted on another host if the [shared] storage device failed. Hence my interest in DRDB for block replication using a minimum of two storage devices. Single shared storage creates a single point of failure, so storage must also be replicated. In a two physical server model, both physical servers would provide storage and allow for storage to be replicated. Ideally, each physical server would have two storage areas, one that is a replication of the other servers storage area, and one which the other server is replicating. Is there a way for one physical server to hourly or nightly replicate its virtual machine's storage to the other physical server ? Kind of like if a rsync was set up in cron?, but a bit more of a sophisticated solution. http://searchservervirtualization.techtarget.com/tip/Power-management-a-must-for-oVirt-high-availability To build oVirt high availability, you need a minimum of two hosts, as well as a shared storage platform [1]. You also need to configure power management [2] on the hosts. http://www.linbit.com/en/company/news/333-high-available-virtualization-at-a-most-reasonable-price Using DRBD and Pacemaker with oVirt... http://blog.gluster.org/2013/09/ovirt-3-3-glusterized/ http://rehdat.blogspot.com.au/2013/04/rhev-31-active-direcotry-vms-high.html I read the below information but it is too a high level to explain how HA is achieved. http://www.ovirt.org/OVirt_3.0_Feature_Guide#High_availability HIGH AVAILABILITY Allows critical VMs to be restarted on another host in the event of hardware failure with three levels of priority, taking into account resiliency policy. * Resiliency policy to control high availability VMs at the cluster level. * Supports application-level high availability with supported fencing agents. http://community.redhat.com/blog/2014/03/ovirt-3-4-unveiled/ Links: -- [1] http://searchstorage.techtarget.com/answer/Shared-storage-and-SAN-differences [2] http://searchdatacenter.techtarget.com/definition/intelligent-power-management-IPM ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
[ovirt-users] Instructions for novices
Hi, Can someone point me to instructions for building a CentOS server that would be ready for installing the self hosted node. I have a 7x 500GB HD, 16 GB RAM, i7 computer that I have installed CentOS 6.5 (Software RAID6) to and would now like to install the self-hosted-engine. While I do have experience with Debian as a server and some experience with CentOS, I have not so far found any information regarding how to build a basic server ready for installing oVirt packages, for example configuring static IP addresses, hostname, hosts file, maybe NFS shares ? or iSCSI shares ? http://www.ovirt.org/Download#Install_oVirt Step 6 says Follow the on screen prompts to configure and install the engine , however knowing what to supply for the prompts and what to have already configured on your server would be very helpful. http://www.ovirt.org/Hosted_Engine_Howto During the deployment you'll be asked for input on host name, storage path and other relevant information , it is how to set up the environment for answering these questions that I would like assistance with (e.g. a HowTo ?) I have once before installed the ovirt-engine-setup-plugin-allinone in a VMware Workstation VM, but not without many challenges. I would now like to install the ovirt-hosted-engine-ha The second prompt said Please specify the full shared storage connection path to use (example: host:/path):, however it does not say that it will create this or whether you need to have this created earlier ? At this time I don't have a static IP address nor the hosts file containing the host name, this is just a newly built CentOS server with minimum GUI, updates applied and no other changes. So is there any documentation which would explain what other changes are needed and how to do this? http://www.ovirt.org/Quick_Start_Guide Two packages, ovirt-hosted-engine-setup and ovirt-hosted-engine-ha provide the setup and services necessary to deploy a self-hosted-engine oVirt environment. For more on the oVirt Self-Hosted Engine, see the oVirt Installation Guide. https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Virtualization/3.3/html/Installation_Guide/Configuring_the_Self-Hosted_Engine.html http://blog.gluster.org/2014/05/ovirt-3-4-glusterized/ The Hosted Engine feature relies on NFS storage to house the management VM. ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
