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PVE Cluster question

May 7, 2013, 12:15 pm
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Hello,

I'd just like to know if a pve cluster pools physical hardware resources such that VMs pull from that central pool, and not from any particular server?

For example, in a cluster with 2 nodes, each with 10GB of RAM, is it possible to create a VM with 15GB of RAM?

I've read the wiki article on the PVE cluster and couldn't quite figure this out.

Thanks.
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Login loop

May 7, 2013, 2:04 pm
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Hello,
i did an mistake and removed my clusternode.
Now i could not do any changes on my VM because of the error (permissin denied)
I tried to fix this issue by recreating a new cluster http://undefinederror.org/how-to-res...-in-proxmox-2/ but now i can't log in.
If i use the correct credentcials i returned to the loginscreen.
What can i do?

Thanks for your help

Tobias
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Promox ve 2.3 installation on sd card questions

May 7, 2013, 3:34 pm
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Hi,


I'm trying to install promox ve on my dell servers


Configuration:
-2 Dell PowerEdge R620
-Bi xeon
-256go RAM
-2 SD card 2go (miroring)
-No hard disk
-Storage dell MD3200 sas attachement


I have some questions:
Is there someone who already installed promox ve on SD card?
On promox ve installation wizard , i see only 1go disk space, not 2go. May be a driver problem?
And 1go disk space seems not sufficient, what is the minimum disk size for the installation?


Thanks in advance for your help.
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iscsitarget on proxmox 2.3 host!

May 7, 2013, 11:49 pm
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Hi Guys,

I don't know if my approach is wrong, but I need to provide my VM/CT guests by a iSCSI target which hosts by proxmox 2.3!
So I have installed the linux kernel first and then iscsitarget & iscsitarget-dkms packages. Just the problem is a WARNING when I :
root@opxi2Server1:~# dkms status
iscsitarget, 1.4.20.2, 2.6.32-18-pve, x86_64: installed (WARNING! Diff between built and installed module!)

I just wanted to know there is nothing wrong with doing this on proxmox because it has a modified kernel.

BEST,
-- Afshin Afzali
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Proxmox VE 3.0 RC1 released!

May 8, 2013, 12:26 am
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We just released Proxmox VE 3.0 RC1 (release candidate). Its based on the great Debian 7.0 release (Wheezy) and introduces a great new feature set:

VM Templates and Clones

Under the hood, many improvements and optimizations are done, most important is the replacement of Apache2 by our own event driven API server.

A big Thank-you to our active community for all feedback, testing, bug reporting and patch submissions.

Release notes
See http://pve.proxmox.com/wiki/Roadmap#Proxmox_VE_3.0

Download
http://www.proxmox.com/downloads/pro.../17-iso-images

Install Proxmox VE on Debian Wheezy
http://pve.proxmox.com/wiki/Install_..._Debian_Wheezy

Upgrade from any 2.3 to 3.0
http://pve.proxmox.com/wiki/Upgrade_from_2.3_to_3.0

All RC1 installations can be updated to 3.0 stable without any problems (apt).
__________________
Best regards,

Martin Maurer
Proxmox VE project leader
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Proxmox VE 3.0 RC1 released!

May 8, 2013, 12:26 am
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We just released Proxmox VE 3.0 RC1 (release candidate). Its based on the great Debian 7.0 release (Wheezy) and introduces a great new feature set:

VM Templates and Clones

Under the hood, many improvements and optimizations are done, most important is the replacement of Apache2 by our own event driven API server.

A big Thank-you to our active community for all feedback, testing, bug reporting and patch submissions.

Release notes
See http://pve.proxmox.com/wiki/Roadmap#Proxmox_VE_3.0

Download
http://www.proxmox.com/downloads/pro.../17-iso-images

Install Proxmox VE on Debian Wheezy
http://pve.proxmox.com/wiki/Install_..._Debian_Wheezy

Upgrade from any 2.3 to 3.0
http://pve.proxmox.com/wiki/Upgrade_from_2.3_to_3.0

All RC1 installations can be updated to 3.0 stable without any problems (apt).
__________________
Best regards,

Martin Maurer
Proxmox VE project leader
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Clone vm

May 8, 2013, 12:31 am
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Hello everyone! Can you tell me how can i clone vm ? Can i do it from web interface ?
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uefi boot

May 8, 2013, 12:56 am
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I have a fresh install of w7 on hard drive and am trying to boot this disk from a kvm vm. I have read some posts on the subject but do not understand.
Seabios? Supports UEFI boot?
Thank you.
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Concurrent migration fails because port is in use

May 8, 2013, 2:05 am
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Hello everybody,


We have a two-node-cluster with Proxmox 2.3-13 using DRBD. Fail-over works, but after the failed node is back and unfenced, the second migration back to the original node fails:


Code:
task started by HA resource agent
May 07 13:53:21 starting migration of VM 103 to node 'vhost2' (10.0.0.102)
May 07 13:53:21 copying disk images
May 07 13:53:21 starting VM 103 on remote node 'vhost2'
May 07 13:53:23 starting migration tunnel
bind: Address already in use


channel_setup_fwd_listener: cannot listen to port: 60000


Could not request local forwarding.


May 07 13:53:24 starting online/live migration on port 60000
May 07 13:53:24 migrate_set_speed: 8589934592
May 07 13:53:24 migrate_set_downtime: 0.1
May 07 13:53:26 ERROR: online migrate failure - aborting
May 07 13:53:26 aborting phase 2 - cleanup resources
May 07 13:53:26 migrate_cancel
May 07 14:03:30 ERROR: migration finished with problems (duration 00:10:10)
TASK ERROR: migration problems
The first migration worked without problems. There seems to be a race condition if two migrations are concurrent, the port is not incremented. Is there any option to delay the migration by a few seconds? Or is another work-around available? Any help is appreciated because we really need to re-balance the VMs after a node comes online.

Kind regards,
Chris


This is our cluster.conf:

Code:
<?xml version="1.0"?>
<cluster config_version="9" name="testcluster">
  <cman two_node="1" expected_votes="1" keyfile="/var/lib/pve-cluster/corosync.authkey"/>
  <fencedevices>
    <fencedevice agent="fence_ifmib" community="public" ipaddr="10.0.0.5" name="switch_a1" snmp_version="2c"/>
    <fencedevice agent="fence_ifmib" community="public" ipaddr="10.0.0.6" name="switch_a2" snmp_version="2c"/>
    <fencedevice agent="fence_ifmib" community="public" ipaddr="10.0.0.7" name="switch_b1" snmp_version="2c"/>
    <fencedevice agent="fence_ifmib" community="public" ipaddr="10.0.0.8" name="switch_b2" snmp_version="2c"/>
  </fencedevices>
  <clusternodes>
    <clusternode name="vhost1" nodeid="1" votes="1">
      <fence>
        <method name="fence">
          <device action="off" name="switch_b1" port="35"/>
          <device action="off" name="switch_b2" port="38"/>
        </method>
      </fence>
    </clusternode>
    <clusternode name="vhost2" nodeid="2" votes="1">
      <fence>
        <method name="fence">
          <device action="off" name="switch_a1" port="37"/>
          <device action="off" name="switch_a2" port="42"/>
        </method>
      </fence>
    </clusternode>
  </clusternodes>
  <rm>
    <failoverdomains>
      <failoverdomain name="domain1" nofailback="0">
        <failoverdomainnode name="vhost1" priority="1"/>
      </failoverdomain>
      <failoverdomain name="domain2" nofailback="0">
        <failoverdomainnode name="vhost2" priority="1"/>
      </failoverdomain>
    </failoverdomains>
    <pvevm autostart="1" vmid="102" domain="domain1" />
    <pvevm autostart="1" vmid="103" domain="domain2"/>
    <pvevm autostart="1" vmid="106" domain="domain1" />
    <pvevm autostart="1" vmid="107" domain="domain2" />
  </rm>
</cluster>
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2.2 and 2.3 cluster

May 8, 2013, 3:35 am
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I have 4 pve version 2.2 hosts in cluster. After update one of host to 2.3 i have some problems. VM's live migration 2.2 <-> 2.3 failed. Web panel 2.3 show all pve nodes down (including itself, 2.3 host), 2.2 not show status of VM on 2.3 host. Is 2.2 and 2.3 versions compatible or not?
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Can't activate LV of VM's after iscsi server restarted. Help needed!

May 8, 2013, 4:06 am
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Hi All,

I have a Proxmox cluster consisting 8 nodes. This worked flawless for almost a year now. Unfortunately the iscsi server crashed, after the restart the VM's on the nodes showed irratic behaviour. Therefore I restarted one of these VM's which resulted in the following message:

Error: can't activate LV '/dev/DATA07/vm-102-disk-1': Skipping volume group Data07

From that point I have checked the iscsi-server where everything shows correctly. The nodes have iscsi initiators running there.
The LVM's exist en check out ok as far as I can see.

Currently I am running out of options and have 20 VM's down, any help is VERY welcome!!

Thanks in advance!
Siebe
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IO Delay. What is a normal value how to trouble shoot ? Tools command ?

May 8, 2013, 5:15 am
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My IO Delay looks like:

Normal between 0.00 to 1.00
Sometimes 3 or max 10
Backups higher but seem "Normal" to me.

When do we talk about bad performance ? What is the best way or command to find
out what VM is causing this ? Checking the disk read write in the Proxmox gui ? :rolleyes:

My system looks like this:

pveperf:

CPU BOGOMIPS: 53465.68
REGEX/SECOND: 1169780
HD SIZE: 1015.93 GB (/dev/sda3)
BUFFERED READS: 42.95 MB/sec
AVERAGE SEEK TIME: 39.78 ms
FSYNCS/SECOND: 4.83
DNS EXT: 49.22 ms

Did notice there is a lot of info here about IO Delay :cool: So guess i did find some answers already ...
I use hardware raid 5 noticed one of my drives is dead :( will be replaced. Its raid 5 so server is still fine :)
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Ram Upgrade Proxmox Hostsystem ...

May 8, 2013, 5:59 am
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Hello,

is it possible to upgrade the ram on the hostsystem after the proxmox installation?

Best regards
BUE
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Backup Status Info explanation

May 8, 2013, 6:38 am
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Could somebody explain the info proxmox shows in the following format during backup?

"INFO: status 10% (9999999999/99999999999), sparse 7%(99999999999), duration 674, 33/17 MB/S"

Thanks!
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3.0 Upgrade forgot to stop vms - website not loading?

May 8, 2013, 8:38 am
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I forgot to shut off the vms and now can't start the vms in SSH and the site doesn't load? any ideas?
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Proxmox 3.0 iSCSI Drivers Do not work

May 8, 2013, 9:25 am
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The nodes refuse to start iscsi sessions - anyone else having issues with this?
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OpenVz containers same ip and different control panels

May 8, 2013, 8:38 pm
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Hi everybody

I have dedicated server and install proxmox , the distribution of OVH over Debian

I install this and create containers , in this case create 2 containers 100 and 101

I instal in each one of these containers centos 6.3 clean template

After this i load in each case ispconfig for works in each container

After this i use

Quote:
iptables -t nat -A POSTROUTING -s 10.0.0.0/24 -o vmbr0 -j SNAT --to 5.39.84.286

iptables -t nat -A PREROUTING -i vmbr0 -p tcp --dport 1022 -j DNAT --to 10.0.0.1:22

iptables -t nat -A PREROUTING -i vmbr0 -p tcp --dport 1090 -j DNAT --to 10.0.0.1:80

Wit this i can access each container with different ports and with the same ip


Now the problem :


If i want add domains for each container how i can do this because i need one ip and the ip it´s the same in each case and only change port , how i can load the domain for example www.domain.com with the ip fix of machine 5.39.84.286 and load the host container for this

I think it´s possible but i don´t know how i can do this

Other people tell me ok use ipfailover and no more problems , ok but i don´want buy one ipfailover for each container i supose it´s possible use this kind of method for use containers and use the same ip , i think .....

Thank´s for the help and the best regards for all community
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HW Raid status.

May 9, 2013, 12:55 am
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Hello,

I wondering if it possible to intergrated RAID status into proxmox www inteface?

I`m using raid controller Perc 5i (rebranded from LSI)

I have installed megacli I can use this program to take out diferent status indication from the controller.
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Create ISO from Source / Modify ISO

May 9, 2013, 1:21 am
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I'm trying to edit some files inside the ISO file and then recreate it.

What I did is:

Code:
mount -o loop proxmox-ve_2.3-ad9c5c05-30.iso iso/
cp -R iso/* newiso/
mkisofs -R -iso-level 4 -z -V "PVE" -o pve-cd.iso -b boot/isolinux/isolinux.bin -c boot/isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table newiso/
It boots fine but it returns this error:

Code:
no cdrom found - unable to continue (type exit or CTRL+D to reboot)
What am I doing wrong?
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Migrate OpenVZ CT to ProxMox (ploop problem ...) ?

May 9, 2013, 2:29 am
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Hi,

I've several OpenVz CT actually working on OpenVZ Host (not ProxMox). These CT use ploop layout. When i try to migrate to ProxMox whith "vzmigrate" i get this error : "Destination node don't support ploop, can't migrate". I think it's normal because ProxMox don't seem to support ploop.

Do you think there is a method to convert containers currently running ploop storage mode to normal OpenVZ storage layout ?

Thanks in advance for your help !

/Xavier
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