Re: [one-users] LVM over iSCSI or NFS for OpenNebula
On 2015-02-17 02:58, Jaime Melis wrote: Hi, - I can create VMs successfully but very very slow performance. Are you using virtio drivers? I also recommend playing with the 'cache' parameter. How well does it perform compared with I/O operations in the hypervisor? Is the storage the problem here or the Virtualization layer? I am using KVM hypervisor. I also used Chachefilesd but while launching vms it takes long time. Also poor writing speed inside the vm. - Also when I created VM on node1 and try to migrate it other vm it does not work as logical volume of that VM on node2 is inactive. have you set up cLVMd? I think for your setup the best approach is: http://docs.opennebula.org/4.10/administration/storage/fs_lvm_ds.html [2] Or something like GFS2. No I did not configure CLVMd or GFS as it needs fencing device. Regards Neelesh Gurjar cheers, Jaime On Tue, Feb 10, 2015 at 12:08 PM, wrote: Hi, I am setting up OpenNebula on 2 nodes and 1 storage on 1Gb Network. - installed Nexenta Community Version on Storage and created iSCSI LUN. - Access those LUNs on both nodes and created Volume Group on it. - Configured LVM Block Datastore in OpenNebula. - I can create VMs successfully but very very slow performance. - Also when I created VM on node1 and try to migrate it other vm it does not work as logical volume of that VM on node2 is inactive. What do you recommend for this type of setup for Shared Storage LVM, NFS? Please note that I need to use 1GbE copper due to budget limitations. Regards Neelesh Gurjar ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org [1] -- OpenNebula - Flexible Enterprise Cloud Made Simple -- Jaime Melis Senior Infrastructure Architect at OpenNebula Systems (formerly C12G Labs) jmelis@opennebula.systems | @OpenNebula -- Confidentiality Warning: The information contained in this e-mail and any accompanying documents, unless otherwise expressly indicated, is confidential and privileged, and is intended solely for the person and/or entity to whom it is addressed (i.e. those identified in the "To" and "cc" box). They are the property of OpenNebula.Systems S.L.. Unauthorized distribution, review, use, disclosure, or copying of this communication, or any part thereof, is strictly prohibited and may be unlawful. If you have received this e-mail in error, please notify us immediately by e-mail at abuse@opennebula.systems and delete the e-mail and attachments and any copy from your system. OpenNebula's thanks you for your cooperation. Links: -- [1] http://lists.opennebula.org/listinfo.cgi/users-opennebula.org [2] http://docs.opennebula.org/4.10/administration/storage/fs_lvm_ds.html ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] datastore layout question
Hi Steve, Normally If I have to use NFS based shared hosting then I mounted /var/lib/one directly on all nodes instead of mounting datastores seperately. Else recently I configured multiple OpenNebula Nodes with local /var/lib/one directory added one Node just for backup and sync only datastores of all nodes on that backup node. So that I can easily live migrate VMs to that backup Node from any node. It worked well for me. Pros: 1. Speedy managing instances as it uses local storage. 2. Live Migration works 3. Very Low cost compare to Fiber infrastructure 4. No need for separate Network storage as backup node can work as OpenNebula Host. Cons: 1. It cannot be realtime sync but you set cron for every minute 2. Need to monitor syncing. Regards Neelesh Gurjar On 2015-02-16 09:35, Steven Timm wrote: My one4.8 installation is set up with NFS-based shared image store #102 and local-based system datastore #100 instantiated in local disk on each VM host. Thus far it seems that I am forced to set up the datastore path as /var/lib/one/datastores/ So that means I have to NFS export datastore #102 to all VM nodes with exactly that path (/var/lib/one/datastores/102) and then as long as the /var/lib/one/datastores path is there on the VM host the directory /var/lib/one/datastores/100 will be made when the first VM is launched. All of this works just fine but it does mean that I have to be careful every time I reset the cloud to make sure that the image datastore is created as datastore #102. If I ever end up changing the number for whatever reason I will have to change all the mount points all across the cluster. Has anyone ever figured out a better way to deal with mounting a shared NFS data store? Steve Timm -- Steven C. Timm, Ph.D (630) 840-8525 t...@fnal.gov http://home.fnal.gov/~timm/ Office: Wilson Hall room 804 Fermilab Scientific Computing Division, Scientific Computing Facilities Quadrant., Experimental Computing Facilities Dept., Project Lead for Virtual Facility Project. ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
[one-users] LVM over iSCSI or NFS for OpenNebula
Hi, I am setting up OpenNebula on 2 nodes and 1 storage on 1Gb Network. - installed Nexenta Community Version on Storage and created iSCSI LUN. - Access those LUNs on both nodes and created Volume Group on it. - Configured LVM Block Datastore in OpenNebula. - I can create VMs successfully but very very slow performance. - Also when I created VM on node1 and try to migrate it other vm it does not work as logical volume of that VM on node2 is inactive. What do you recommend for this type of setup for Shared Storage LVM, NFS? Please note that I need to use 1GbE copper due to budget limitations. Regards Neelesh Gurjar ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
[one-users] Query regarding system & image datastores
Hi, I am planning to setup OpenNebula Cloud. I want to decide storage for System & Images datastore and also storage on host. I want to use Shared Storage using iscsi over fiber. In this case, when I create VM how image will be transfer to System datastore and how it will be transfer to Host? Please help me out. Regards Neelesh Gurjar ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
[one-users] Queries regarding Storage Backend for DataStore
Hi, I am planning to setup OpenNebula 4.10 for Cloud Hosting. In beginning I will be hosting 50 VMs of 2 vCPU with 40GB SSD Storage and OS will be Linux. - Very first is how actually these datastore works in comparison with Cinder and Glance of OpenStack ? - Which Datastore I can put on faster connectivity and which on slower? - Suppose I launched 2 VMs from one image, where the images are stored of Both VMs? In OpenStack I need to create Volume and attached as a RootDisk to instance, how should I go ahead in OpenNebula? - How to calculate required IOPS to decide Storage Backend eg. Number of Drives, RAID level, Connectivity, etc. - I was planning to use iSCSI with Nexenta based storage. Is that ok or should I go with Ceph ? will Ceph or NFS give performance ? - Any suggestions to design the storage backend for DataStore. - Do I need fiber connectivity between Compute Nodes and Storage ? Regards Neelesh Gurjar ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] Not able to Launch VM in OpenNebula 4.10.1 on CentOS 7
Hi This issue is resolved. I had create host by giving "-n srv1" instead of "-n dummy". Solution: Coppied dummy folder to srv1. cp -ap /var/tmp/one/vnm/dummy /var/tmp/one/vnm/srv1 And issue is resolved. Thanks and Regards Neelesh Gurjar On 2014-12-12 05:35, ngur...@neeleshgurjar.co.in wrote: Hi, I have installed OpenNebula 4.10.1 on CentOS 7. Also installed OpenNebula-kvm-node on other machine. Added that machine to OpenNebula using onehost successfully. However when I tried to create VM I am getting below error: Fri Dec 12 06:21:09 2014 [Z0][DiM][I]: New VM state is ACTIVE. Fri Dec 12 06:21:09 2014 [Z0][LCM][I]: New VM state is PROLOG. Fri Dec 12 06:21:15 2014 [Z0][LCM][I]: New VM state is BOOT Fri Dec 12 06:21:15 2014 [Z0][VMM][I]: Generating deployment file: /var/lib/one/vms/14/deployment.0 Fri Dec 12 06:21:15 2014 [Z0][VMM][I]: Remote worker node files not found Fri Dec 12 06:21:15 2014 [Z0][VMM][I]: Updating remotes Fri Dec 12 06:21:15 2014 [Z0][VMM][I]: Command execution fail: /var/tmp/one/vnm/srv1/pre PFZNPjxJRD4xNDwvSUQ+PERFUExPWV9JRC8+PEhJU1RPUllfUkVDT1JEUz48SElTVE9SWT48SE9TVE5BTUU+c3J2MS5jbG91ZC50ZXN0PC9IT1NUTkFNRT48L0hJU1RPUlk+PC9ISVNUT1JZX1JFQ09SRFM+PC9WTT4= Fri Dec 12 06:21:15 2014 [Z0][VMM][I]: bash: line 2: /var/tmp/one/vnm/srv1/pre: No such file or directory Fri Dec 12 06:21:15 2014 [Z0][VMM][I]: ExitCode: 127 Fri Dec 12 06:21:15 2014 [Z0][VMM][I]: Failed to execute network driver operation: pre. Fri Dec 12 06:21:15 2014 [Z0][VMM][E]: Error deploying virtual machine Fri Dec 12 06:21:16 2014 [Z0][DiM][I]: New VM state is FAILED Please help me out. Regards Neelesh Gurjar ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] Bare Metal provisioning with OpenNebula
On 2014-12-05 09:08, Arnold Bechtoldt wrote: Tools like Foreman and Cobbler might be something for you. Some infos on that: http://www.slideshare.net/inovex/bootstrapping-a-virtual-infrastructure-bootstrapping-avirtualinfrastructurearnoldbechtoldtopennebulaconference2014 (cycle) https://github.com/theforeman/foreman-one https://www.youtube.com/results?search_query=foreman+opennebula Arnold -- Arnold Bechtoldt Karlsruhe, Germany On 04.12.14 10:21, ngur...@neeleshgurjar.co.in wrote: Thanks Jaime for reply. But which project decoupled from OpenNebula ? or can you give me some pointers for softwares which provides such service. Regards Neelesh Gurjar On 2014-12-04 03:11, Jaime Melis wrote: Hi, OpenNebula provides no such feature out of the box. You can run a VM with OpenNebula with such a software installed in order to provision other VMs or even physical nodes in the datacenter. But other than querying OpenNebula for the MAC and IP of the VMs, this is a project completely decoupled from OpenNebula. Cheers, Jaime On Thu, Dec 4, 2014 at 5:59 AM, wrote: Thanks all. Cobbler is really easy. Hi, Can I configure Bare Metal Provisioning or Metal As a Service with OpenNebula ? Regards Neelesh Gurjar ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org [1] -- Jaime Melis Project Engineer OpenNebula - Flexible Enterprise Cloud Made Simple www.OpenNebula.org [2] | jme...@opennebula.org Links: -- [1] http://lists.opennebula.org/listinfo.cgi/users-opennebula.org [2] http://www.OpenNebula.org ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
[one-users] Not able to Launch VM in OpenNebula 4.10.1 on CentOS 7
Hi, I have installed OpenNebula 4.10.1 on CentOS 7. Also installed OpenNebula-kvm-node on other machine. Added that machine to OpenNebula using onehost successfully. However when I tried to create VM I am getting below error: Fri Dec 12 06:21:09 2014 [Z0][DiM][I]: New VM state is ACTIVE. Fri Dec 12 06:21:09 2014 [Z0][LCM][I]: New VM state is PROLOG. Fri Dec 12 06:21:15 2014 [Z0][LCM][I]: New VM state is BOOT Fri Dec 12 06:21:15 2014 [Z0][VMM][I]: Generating deployment file: /var/lib/one/vms/14/deployment.0 Fri Dec 12 06:21:15 2014 [Z0][VMM][I]: Remote worker node files not found Fri Dec 12 06:21:15 2014 [Z0][VMM][I]: Updating remotes Fri Dec 12 06:21:15 2014 [Z0][VMM][I]: Command execution fail: /var/tmp/one/vnm/srv1/pre PFZNPjxJRD4xNDwvSUQ+PERFUExPWV9JRC8+PEhJU1RPUllfUkVDT1JEUz48SElTVE9SWT48SE9TVE5BTUU+c3J2MS5jbG91ZC50ZXN0PC9IT1NUTkFNRT48L0hJU1RPUlk+PC9ISVNUT1JZX1JFQ09SRFM+PC9WTT4= Fri Dec 12 06:21:15 2014 [Z0][VMM][I]: bash: line 2: /var/tmp/one/vnm/srv1/pre: No such file or directory Fri Dec 12 06:21:15 2014 [Z0][VMM][I]: ExitCode: 127 Fri Dec 12 06:21:15 2014 [Z0][VMM][I]: Failed to execute network driver operation: pre. Fri Dec 12 06:21:15 2014 [Z0][VMM][E]: Error deploying virtual machine Fri Dec 12 06:21:16 2014 [Z0][DiM][I]: New VM state is FAILED Please help me out. Regards Neelesh Gurjar ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] Bare Metal provisioning with OpenNebula
Thanks Jaime for reply. But which project decoupled from OpenNebula ? or can you give me some pointers for softwares which provides such service. Regards Neelesh Gurjar On 2014-12-04 03:11, Jaime Melis wrote: Hi, OpenNebula provides no such feature out of the box. You can run a VM with OpenNebula with such a software installed in order to provision other VMs or even physical nodes in the datacenter. But other than querying OpenNebula for the MAC and IP of the VMs, this is a project completely decoupled from OpenNebula. Cheers, Jaime On Thu, Dec 4, 2014 at 5:59 AM, wrote: Hi, Can I configure Bare Metal Provisioning or Metal As a Service with OpenNebula ? Regards Neelesh Gurjar ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org [1] -- Jaime Melis Project Engineer OpenNebula - Flexible Enterprise Cloud Made Simple www.OpenNebula.org [2] | jme...@opennebula.org Links: -- [1] http://lists.opennebula.org/listinfo.cgi/users-opennebula.org [2] http://www.OpenNebula.org ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
[one-users] Bare Metal provisioning with OpenNebula
Hi, Can I configure Bare Metal Provisioning or Metal As a Service with OpenNebula ? Regards Neelesh Gurjar ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
[one-users] Storage for Multi Location OpenNebula Setup
Hi, I want to setup OpenNebula Cloud across multiple locations. Which type of Storage is recommended for such type of setups ? For eg. in OpenStack Swift Storage is used. Regards Neelesh Gurjar ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
[one-users] How to integrate Swift storage in OpenNebula
Hi I have configured OpenNebula 4.8 and working good. I have one Swift storage cluster in place. I want to store datastore on that Swift storage. I tried to create new datastore but in that there is no option for Swift. How can I add Swift storage for datastore? Regards Neelesh Gurjar ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
