Re: [one-users] onevm auth error
Hi Hector, thanks for getting back to me. Not too sure - but the problem is reproducible each time my side. I wonder whether it's my sunstone installation ? If I reset the password via the commandline, then set the on_auth file to plain text - it works no problem. If I reset via the sunstone interface - no go. But I have it working now :) Not too sure if there are any version numbers etc. you need me to check ? Regards, Adrian Snyman Linux Systems Administrator University of Johannesburg Tel: 011-559-4929 Cell: 082-600-1211 -Original Message- From: users-boun...@lists.opennebula.org [mailto:users- boun...@lists.opennebula.org] On Behalf Of Hector Sanjuan Sent: 14 March 2012 05:30 PM To: users@lists.opennebula.org Subject: Re: [one-users] onevm auth error hi, I tried quickly and this problem doesnt happen to me. I changed oneadmin password via sunstone, then updated one_auth with the plain text password and things work fine. Have you changed the oneadmin authentication driver perhaps to something other than 'core'? What version of ONE are you using? Is sunstone login working with the new password? Hector En Wed, 14 Mar 2012 10:54:37 +0100, Snyman, Adrian adri...@uj.ac.za escribió: Okay, so I changed the password for the oneadmin user via the sunstone interface - now the commandline is suddenly broken :( The one_auth file needs to have an encrypted string for the password - plain text does not work. So how do I generate an encrypted password ? Regards, Adrian Snyman Linux Systems Administrator University of Johannesburg Tel: 011-559-4929 Cell: 082-600-1211 This email and all contents are subject to the following disclaimer: http://disclaimer.uj.ac.za -- Hector Sanjuan OpenNebula Developer ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org This email and all contents are subject to the following disclaimer: http://disclaimer.uj.ac.za ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] vm state is unknown...what to do???
Hello Darshan, are you using Xen? Our ttylinux image is prepared only to run with KVM. Cheers, Jaime On Mon, Feb 6, 2012 at 8:31 AM, Darshan Upadhyay darshan...@gmail.comwrote: hi guys.. please help me out i am trying to run vm on host through front end with the command onevm but my vm is reach upto running stage and certainly it will transfer to unknown state..so i am not able to findout that at which poing i am doing wrongi have register ttylinux image through oneimage...and using it in vmmy vm template is shown below.Please guide me where i am doing wrong. vm template NAME = ttyvm CPU = 0.3 MEMORY = 200 VCPU = 1 OS = [ KERNEL = /boot/vmlinuz-2.6.18-194.el5xen, INITRD = /boot/vmlinuz-2.6.18.194.el5xen.img ] DISK = [ IMAGE = ttylinux, IMAGE_ID = 1, READONLY = no ] FEATURES = [ ACPI = no ] ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org -- Jaime Melis Project Engineer OpenNebula - The Open Source Toolkit for Cloud Computing www.OpenNebula.org | jme...@opennebula.org ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] help with a configuration
Hello Jan, this line is confusing me: I don't want to share anything between the host and the frontend but i can mount filesystems from the host to the frontend on demand. Can you export from your SAN system both to your host and to your frontend? In that case you can mount a shared /var/lib/one in both. Cheers, Jaime On Wed, Feb 15, 2012 at 9:49 AM, Jan M. Stankovsky jan.stankov...@univie.ac.at wrote: I have a single server with access to a SAN System. I would like to use this server as a (cluster) node [host] and virtualize the frontend on my working place computer with virtualbox. I don't want to share anything between the host and the frontend but i can mount filesystems from the host to the frontend on demand. in such a setup where/how should i put the image repositories, because the host has the storage. thanks j. ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org -- Jaime Melis Project Engineer OpenNebula - The Open Source Toolkit for Cloud Computing www.OpenNebula.org | jme...@opennebula.org ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] problem when installing OpenNebula on Opensuse 11.4
Hello Nicolas, did you figure this out? From other mails you've written to the mailing list I understand that you have managed to install OpenNebula. Did you use openSUSE's packages? Cheers, Jaime On Thu, Feb 16, 2012 at 6:12 PM, nicolas diogo nicolasdi...@gmx.com wrote: hello, i have followed the documentation available and i find that i can not start portions of my ONE installation. when trying to start sunstone: service sunstone start i get an error message and the following is posted on the log: */usr/lib64/ruby/gems/1.8/gems/sequel-3.32.0/lib/sequel/adapters/sqlite.rb:67:in `initialize': SQLite3::CantOpenException: unable to open database file (Sequel::DatabaseConnectionError) from /usr/lib64/ruby/gems/1.8/gems/sequel-3.32.0/lib/sequel/adapters/sqlite.rb:67:in `new' from /usr/lib64/ruby/gems/1.8/gems/sequel-3.32.0/lib/sequel/adapters/sqlite.rb:67:in `connect' from /usr/lib64/ruby/gems/1.8/gems/sequel-3.32.0/lib/sequel/database/misc.rb:48:in `initialize' from /usr/lib64/ruby/gems/1.8/gems/sequel-3.32.0/lib/sequel/connection_pool.rb:92:in `call' from /usr/lib64/ruby/gems/1.8/gems/sequel-3.32.0/lib/sequel/connection_pool.rb:92:in `make_new' from /usr/lib64/ruby/gems/1.8/gems/sequel-3.32.0/lib/sequel/connection_pool/threaded.rb:127:in `make_new' from /usr/lib64/ruby/gems/1.8/gems/sequel-3.32.0/lib/sequel/connection_pool/threaded.rb:113:in `available' from /usr/lib64/ruby/gems/1.8/gems/sequel-3.32.0/lib/sequel/connection_pool/threaded.rb:103:in `acquire' from /usr/lib64/ruby/gems/1.8/gems/sequel-3.32.0/lib/sequel/connection_pool/threaded.rb:147:in `sync' from /usr/lib64/ruby/gems/1.8/gems/sequel-3.32.0/lib/sequel/connection_pool/threaded.rb:147:in `synchronize' from /usr/lib64/ruby/gems/1.8/gems/sequel-3.32.0/lib/sequel/connection_pool/threaded.rb:147:in `sync' from /usr/lib64/ruby/gems/1.8/gems/sequel-3.32.0/lib/sequel/connection_pool/threaded.rb:102:in `acquire' from /usr/lib64/ruby/gems/1.8/gems/sequel-3.32.0/lib/sequel/connection_pool/threaded.rb:74:in `hold' from /usr/lib64/ruby/gems/1.8/gems/sequel-3.32.0/lib/sequel/database/connecting.rb:225:in `synchronize' from /usr/lib64/ruby/gems/1.8/gems/sequel-3.32.0/lib/sequel/adapters/sqlite.rb:94:in `execute_ddl' from /usr/lib64/ruby/gems/1.8/gems/sequel-3.32.0/lib/sequel/database/schema_methods.rb:377:in `create_table_from_generator' from /usr/lib64/ruby/gems/1.8/gems/sequel-3.32.0/lib/sequel/database/schema_methods.rb:97:in `create_table' from /usr/lib64/ruby/gems/1.8/gems/sequel-3.32.0/lib/sequel/database/schema_methods.rb:122:in `create_table?' from /usr/lib/one/ruby/acct/watch_helper.rb:137:in `bootstrap' from /usr/lib/one/ruby/acct/watch_helper.rb:221 from /usr/lib64/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require' from /usr/lib64/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:36:in `require' from /usr/lib/one/ruby/acct/watch_client.rb:18 from /usr/lib64/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require' from /usr/lib64/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:36:in `require' from /usr/lib/one/sunstone/models/SunstoneServer.rb:20 from /usr/lib64/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require' from /usr/lib64/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:36:in `require' from /usr/lib/one/sunstone/sunstone-server.rb:51* i am hoping this would be clear somebody that understands ruby. but for me - only sadness.. and more interisting is that i can not find a script; /usr/bin/one it is not there.. i have installed all opennebula packages: zypper instal opennebula* could it be that i am using the wrong repos? this is OpenNebula repo (and i have also enabled Packman) *[Virtualization_Cloud_OpenNebula] name=openNebula Cloud environment (openSUSE_11.4) enabled=1 autorefresh=0 baseurl=http://download.opensuse.org/repositories/Virtualization:/Cloud:/OpenNebula/openSUSE_11.4/ type=rpm-md gpgcheck=1 gpgkey=http://download.opensuse.org/repositories/Virtualization:/Cloud:/OpenNebula/openSUSE_11.4/repodata/repomd.xml.key keeppackages=0* suggestions on how to solve this are most welcome Nicolas ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org -- Jaime Melis Project Engineer OpenNebula - The Open Source Toolkit for Cloud Computing www.OpenNebula.org | jme...@opennebula.org ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
[one-users] Ozones conf in SL 5.5
Hi: We are attempt to configure ozone stuff in a Scientific Linux 5.5... The Sunstone and the Ozone.server web in interface are running ok, but when we attempt to create a zone, whe get these error: [oneadmin@VDC ~]$ onezone create una_zona.template Operating with zone failed with HTTP error code: 400 We suspect the issue is related to the Apache2 configuration, because same error is displyed whe we stoping the Apache2 service. We are follow the recipe at http://opennebula.org/documentation:rel3.2:ozonescfg But this doc seems to be specific for Debian/Ubuntu Any idea about where is the mistake ?? Any idea about how debug this error?? Any doc about how to configure apache for ozone stuff in a redhat 5.x type OS??? Regards ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
[one-users] VM Placement
Hi I'd like to know whether if it is possible to tel opennebula to deploy the VMs on specific hosts in order to save energy in the data center. I know that the scheduler does something similar to that by checking from time to time where the VMs are running and moving consolidating them in the less hosts as possible, but I'd like to know if by some short of energy efficiency policy this can be controled by the user. Thank you Cheers JuanLu ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] how to recover failed vms
Hi Jhon,
Your description is very accurate, and I have just one comment:
Instead of manually executing the 'virsh create' command, you can execute
'onevm restart' [1]. This will have the same effect, the hypervisor
deployment command is executed without going through the prolog state. The
files currently in the host are used, not copied again from the image
repository, preserving the disk changes.
Cheers
[1] http://opennebula.org/documentation:rel3.2:vm_guide_2#onevm_command
--
Carlos Martín, MSc
Project Engineer
OpenNebula - The Open-source Solution for Data Center Virtualization
www.OpenNebula.org | cmar...@opennebula.org |
@OpenNebulahttp://twitter.com/opennebulacmar...@opennebula.org
2012/3/12 Jhon Masschelein jhon.masschel...@sara.nl
Hi list,
In you mail, you mix FAILED and UNKNOWN.
When a VM goes to FAILED, it pretty much always means that it was not able
to deploy due to some error. The log file would give more information. Look
for things like inaccessible disks or networks, bad template variables,
etc..
As far as I know, a FAILED VM should never go to READY state without
resubmission. Please correct me if I am wrong anybody.
UNKNOWN state is different; this happens when oned does not get any
monitoring info from the VM for a while. This could be a result of the
system and or libvirt being very busy or maybe network problems.
Once monitoring resumes, this usually result in an UNKNOWN state going
back to READY. Of course, if for some reason the KVM or XEN domain process
died, monitoring will never resume.
(Not sure if you are using KVM or XEN, the following is based on KVM but I
think XEN is relatively similar.)
For example, if you have a node crash, the KVM process will of course have
died, the monitoring will stop and the VM will end up in UNKNOWN state.
When the crashed node is rebooted, you can recover the VM by booting it
again. In the /var/lib/one/$VMID/images directory for the VM, you will find
a deployment.X file and the images files. You can simply use virsh create
deployment.X (replace X with the highest number you find in the
directory). This will restart the VM.
After a little while, opennebula will start receiving monitoring info from
the restarted VM again and the VM will turn READY.
For a FAILED VM, this mostly is not possible because the reason the VM is
FAILED is because either the deployment file could not be created, is
faulty or the disk images could not be copied.
All this is based on my experience with opennebula. Please correct me if I
am wrong.
Wkr,
Jhon
On 03/11/2012 10:08 PM, Łukasz Oleś wrote:
On Thursday 08 March 2012 06:45:54 Siva Prasad wrote:
Hi All,
I have a peculiar issues. For some reason if vm is heavily loaded it
goes to unknown state. To recover from unknown state I use restart.
some times the vm gets recovered and sometimes it goes to failed state (
in both cases all the vm files exists on the disk).Below are my queries.
1) How to debug why some times vm goes to failed state and why it
recovers sometimes
Check /var/log/one/{vm_id}.log file
2) Is there a way to recover failed vms.
I'm also interested in this question. Anyone?
Thanks,
Siva
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Re: [one-users] VM Placement
Hi, take a look at these projects from the ecosystem: Green Cloud Scheduler - http://opennebula.org/software:ecosystem:green_cloud_scheduler CLUES - http://opennebula.org/software:ecosystem:clues Regards, Jaime On Thu, Mar 15, 2012 at 10:51 AM, Juan Luis Prieto Martínez sirjua...@gmail.com wrote: Hi I'd like to know whether if it is possible to tel opennebula to deploy the VMs on specific hosts in order to save energy in the data center. I know that the scheduler does something similar to that by checking from time to time where the VMs are running and moving consolidating them in the less hosts as possible, but I'd like to know if by some short of energy efficiency policy this can be controled by the user. Thank you Cheers JuanLu ___ 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] VM Placement
Hi Juan Luis, I forgot to clarify that in our scheduler the user can specify what deployment policy to use, which I believe is what you're looking for. http://opennebula.org/documentation:rel3.2:schg#pre-defined_placement_policies The difference with the other ecosystem projects is that the projects I mentioned before perform migrations after deployment to optimize the use of resources. Regards, Jaime On Thu, Mar 15, 2012 at 11:42 AM, Jaime Melis jme...@opennebula.org wrote: Hi, take a look at these projects from the ecosystem: Green Cloud Scheduler - http://opennebula.org/software:ecosystem:green_cloud_scheduler CLUES - http://opennebula.org/software:ecosystem:clues Regards, Jaime On Thu, Mar 15, 2012 at 10:51 AM, Juan Luis Prieto Martínez sirjua...@gmail.com wrote: Hi I'd like to know whether if it is possible to tel opennebula to deploy the VMs on specific hosts in order to save energy in the data center. I know that the scheduler does something similar to that by checking from time to time where the VMs are running and moving consolidating them in the less hosts as possible, but I'd like to know if by some short of energy efficiency policy this can be controled by the user. Thank you Cheers JuanLu ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org -- Jaime Melis Project Engineer OpenNebula - The Open Source Toolkit for Cloud Computing www.OpenNebula.org | jme...@opennebula.org ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] onevm auth error
Not too sure if there are any version numbers etc. you need me to check ? Yes, what version of opennebula are you using? What authentication driver does oneadmin have? Hector En Thu, 15 Mar 2012 07:04:31 +0100, Snyman, Adrian adri...@uj.ac.za escribió: Hi Hector, thanks for getting back to me. Not too sure - but the problem is reproducible each time my side. I wonder whether it's my sunstone installation ? If I reset the password via the commandline, then set the on_auth file to plain text - it works no problem. If I reset via the sunstone interface - no go. But I have it working now :) Not too sure if there are any version numbers etc. you need me to check ? Regards, Adrian Snyman Linux Systems Administrator University of Johannesburg Tel: 011-559-4929 Cell: 082-600-1211 -Original Message- From: users-boun...@lists.opennebula.org [mailto:users- boun...@lists.opennebula.org] On Behalf Of Hector Sanjuan Sent: 14 March 2012 05:30 PM To: users@lists.opennebula.org Subject: Re: [one-users] onevm auth error hi, I tried quickly and this problem doesnt happen to me. I changed oneadmin password via sunstone, then updated one_auth with the plain text password and things work fine. Have you changed the oneadmin authentication driver perhaps to something other than 'core'? What version of ONE are you using? Is sunstone login working with the new password? Hector En Wed, 14 Mar 2012 10:54:37 +0100, Snyman, Adrian adri...@uj.ac.za escribió: Okay, so I changed the password for the oneadmin user via the sunstone interface - now the commandline is suddenly broken :( The one_auth file needs to have an encrypted string for the password - plain text does not work. So how do I generate an encrypted password ? Regards, Adrian Snyman Linux Systems Administrator University of Johannesburg Tel: 011-559-4929 Cell: 082-600-1211 This email and all contents are subject to the following disclaimer: http://disclaimer.uj.ac.za -- Hector Sanjuan OpenNebula Developer ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org This email and all contents are subject to the following disclaimer: http://disclaimer.uj.ac.za -- Hector Sanjuan OpenNebula Developer ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] [openSUSE + OpenNebula 3.2.0 + KVM. How to obtain an .img file?]
On 03/15/2012 09:29 AM, biro lehel wrote: Hello Robert, Thank you for taking the time to answer. I'm currently checking the KIWI guide you provided. I've looked through it briefly, and my only question is the following: I already have my head-node (front-end) and the cloud-node (worker-node) set up and configured, and I was able to manage (get running, through ONE) the provided ttylinux template from the ONE website. Currently, I am only interested in having a running SUSE-image-based VM instead of this ttylinux VM. So, does this mean that I should be concerned only with the parts related to the guest-node from the KIWI documentation? Yes. What exactly is the scope of the parts related to the head-node and the cloud-node (why would I need such images)? The cloud-node image is useful to allow you to set up a new cloud node in short order, 5 minutes or less. If you just run your own small cloud and you do not plan on adding another cloud node then building an image is overkill. Having the images also has the advantage that they encapsulate the knowledge of how to set up and configure a node (head or cloud). Once you have an image and the need for a new node arises you can just install the image and do not have to go through the whole configuration process again. Also, does KIWI needs to be installed on both the front-end and cloud(worker)-node, or all the commands are done from the latter? KIWI does not need to be installed on the cloud machines at all. KIWI just needs to be installed on some machine that can function as your image build machine. HTH, Robert -- Robert Schweikert MAY THE SOURCE BE WITH YOU SUSE-IBM Software Integration Center LINUX Tech Lead rjsch...@suse.com rschw...@ca.ibm.com 781-464-8147 ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] VM Placement
Hi Jaime Thanks for the hint, this is what I was thinking and what I need to put in place. However a second question comes into my mind, is it possible to set up the scheduler policies programatically? Meaning that I'd like to generate an energy aware policy with wich I'd like to set up the scheudler with a Packing policy in X nodes. Cheers JuanLu El 15 de marzo de 2012 12:05, Jaime Melis jme...@opennebula.org escribió: Hi Juan Luis, I forgot to clarify that in our scheduler the user can specify what deployment policy to use, which I believe is what you're looking for. http://opennebula.org/documentation:rel3.2:schg#pre-defined_placement_policies The difference with the other ecosystem projects is that the projects I mentioned before perform migrations after deployment to optimize the use of resources. Regards, Jaime On Thu, Mar 15, 2012 at 11:42 AM, Jaime Melis jme...@opennebula.orgwrote: Hi, take a look at these projects from the ecosystem: Green Cloud Scheduler - http://opennebula.org/software:ecosystem:green_cloud_scheduler CLUES - http://opennebula.org/software:ecosystem:clues Regards, Jaime On Thu, Mar 15, 2012 at 10:51 AM, Juan Luis Prieto Martínez sirjua...@gmail.com wrote: Hi I'd like to know whether if it is possible to tel opennebula to deploy the VMs on specific hosts in order to save energy in the data center. I know that the scheduler does something similar to that by checking from time to time where the VMs are running and moving consolidating them in the less hosts as possible, but I'd like to know if by some short of energy efficiency policy this can be controled by the user. Thank you Cheers JuanLu ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org -- Jaime Melis Project Engineer OpenNebula - The Open Source Toolkit for Cloud Computing www.OpenNebula.org | jme...@opennebula.org ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] Ozones conf in SL 5.5
Hello, I fixed today a small bug which prevents errors to be properly reported in ozones CLI: http://dev.opennebula.org/issues/1168 if you can, i would suggest that you apply the patch (1 line, no need to reinstall) and retry. You should be able to get more info then. If you can't, it could simply be that your zone template is malformed etc. I don't know how your setup is, but it doesnt look like this would have something to do with Apache. Does zone creation work from the web UI with the same parameters? Hope it helps, Hector En Thu, 15 Mar 2012 10:43:15 +0100, Ruben Diez rd...@cesga.es escribió: Hi: We are attempt to configure ozone stuff in a Scientific Linux 5.5... The Sunstone and the Ozone.server web in interface are running ok, but when we attempt to create a zone, whe get these error: [oneadmin@VDC ~]$ onezone create una_zona.template Operating with zone failed with HTTP error code: 400 We suspect the issue is related to the Apache2 configuration, because same error is displyed whe we stoping the Apache2 service. We are follow the recipe at http://opennebula.org/documentation:rel3.2:ozonescfg But this doc seems to be specific for Debian/Ubuntu Any idea about where is the mistake ?? Any idea about how debug this error?? Any doc about how to configure apache for ozone stuff in a redhat 5.x type OS??? Regards ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org -- Hector Sanjuan OpenNebula Developer ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] Shared File System HA
Original Message Subject:Re: [one-users] Shared File System HA Date: Thu, 15 Mar 2012 23:00:27 + From: Nicolas Diogo nicolasdi...@gmx.com To: Hans-Joachim Ehlers hansjoachim.ehl...@eumetsat.int Hi, apologies for hijacking the thread - is there a specific way to configure this filesystem to work with OpenNebula? how should we go about to enable this? thanks, On 14/03/12 15:45, Hans-Joachim Ehlers wrote: In case we are going to deploy OpenNebula we will use GPFS as our clustered FS ... Since it does not answer your question: In case NFS is used you must make sure that: • The NFS server exports the FS with the “sync” option. Otherwise data corruption could/will during server crash. • The NFS client must at least use the mount option “hard“ Hth Hajo From: users-boun...@lists.opennebula.org [mailto:users-boun...@lists.opennebula.org] On Behalf Of Marshall Grillos Sent: Wednesday, March 14, 2012 4:27 PM To: users@lists.opennebula.org Subject: [one-users] Shared File System HA I am debating the differences between Shared and Non-shared file systems for an OpenNebula deployment. One concern with the shared file system is High Availability. I am setting up the OpenNebula front-end with connectivity to a storage device. To avoid the event of a storage device failure (RAID controller, Power, etc) I am looking into setting up a secondary front-end server with attached storage. I would use NFS to share the storage to each VM Host and setup DRDB for block level replication between each cluster node. In the event of a storage failure, a failover would occur utilizing heartbeat/pacemaker to the secondary front-end server. If anyone has tested a similar setup how do the VMs handle the minimal outage required for the failover to occur (the several seconds required to failover to the secondary front-end)? For a certain duration, wouldn’t the NFS mount be unavailable due to the failover mechanism? Thanks, Marshall ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org -- sent with Debian Linux (http://www.debian.org) free yourself into a safer internet this message is only intended to its recipient ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
