Re: [ovirt-users] is it possible to run ovirt node on Diskless HW?

2014-12-07 Thread Doron Fediuck


- Original Message -
 From: Arman Khalatyan arm2...@gmail.com
 To: users users@ovirt.org
 Sent: Wednesday, December 3, 2014 6:50:09 PM
 Subject: [ovirt-users] is it possible to run ovirt node on Diskless HW?
 
 Hello,
 
 Doing steps in:
 https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Storage_Administration_Guide/diskless-nfs-config.html
 
 I would like to know is some one succeeded to run the host on a diskless
 machine?
 i am using Centos6.6 node with ovirt 3.5.
 Thanks,
 Arman.
 
 
 
 
 ***
 Dr. Arman Khalatyan eScience -SuperComputing Leibniz-Institut für Astrophysik
 Potsdam (AIP) An der Sternwarte 16, 14482 Potsdam, Germany
 ***
 

Hi Arman,
Are you working with ovirt node or standard CentOS?

Note that ovirt node is different as it's works like a live cd-
it runs from memory. In order to save some configurations (such
as networking) the local disk is used.
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Re: [ovirt-users] is it possible to run ovirt node on Diskless HW?

2014-12-07 Thread Arman Khalatyan
It is centos 6.6 standard one.
a.

***

Dr. Arman Khalatyan eScience -SuperComputing Leibniz-Institut für
Astrophysik Potsdam (AIP) An der Sternwarte 16, 14482 Potsdam, Germany

***


On Sun, Dec 7, 2014 at 6:04 PM, Doron Fediuck dfedi...@redhat.com wrote:



 - Original Message -
  From: Arman Khalatyan arm2...@gmail.com
  To: users users@ovirt.org
  Sent: Wednesday, December 3, 2014 6:50:09 PM
  Subject: [ovirt-users] is it possible to run ovirt node on Diskless HW?
 
  Hello,
 
  Doing steps in:
 
 https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Storage_Administration_Guide/diskless-nfs-config.html
 
  I would like to know is some one succeeded to run the host on a diskless
  machine?
  i am using Centos6.6 node with ovirt 3.5.
  Thanks,
  Arman.
 
 
 
 
  ***
  Dr. Arman Khalatyan eScience -SuperComputing Leibniz-Institut für
 Astrophysik
  Potsdam (AIP) An der Sternwarte 16, 14482 Potsdam, Germany
  ***
 

 Hi Arman,
 Are you working with ovirt node or standard CentOS?

 Note that ovirt node is different as it's works like a live cd-
 it runs from memory. In order to save some configurations (such
 as networking) the local disk is used.

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Re: [ovirt-users] is it possible to run ovirt node on Diskless HW?

2014-12-07 Thread Doron Fediuck
For standard centos you may see other issues.

For example, let's assume you have a single NIC (eth0).
If you boot your host and then try to add it to the engine,
the host deploy procedure will create try to create a management bridge 
for the VMs using eth0. At this point your host will freeze since your
root FS will be disconnected while creating the bridge.

I've done this ~6 years ago, and it required opening the initrd to handle
the above issue, as well as adding the NIC driver and creating the bridge
at this point. So it's not a trivial task but doable with some hacking.

Doron

- Original Message -
 From: Arman Khalatyan arm2...@gmail.com
 To: Doron Fediuck dfedi...@redhat.com
 Cc: users users@ovirt.org, Fabian Deutsch fdeut...@redhat.com, Ryan 
 Barry rba...@redhat.com, Tolik
 Litovsky tlito...@redhat.com, Douglas Landgraf dougsl...@redhat.com
 Sent: Sunday, December 7, 2014 7:38:19 PM
 Subject: Re: [ovirt-users] is it possible to run ovirt node on Diskless HW?
 
 It is centos 6.6 standard one.
 a.
 
 ***
 
 Dr. Arman Khalatyan eScience -SuperComputing Leibniz-Institut für
 Astrophysik Potsdam (AIP) An der Sternwarte 16, 14482 Potsdam, Germany
 
 ***
 
 
 On Sun, Dec 7, 2014 at 6:04 PM, Doron Fediuck dfedi...@redhat.com wrote:
 
 
 
  - Original Message -
   From: Arman Khalatyan arm2...@gmail.com
   To: users users@ovirt.org
   Sent: Wednesday, December 3, 2014 6:50:09 PM
   Subject: [ovirt-users] is it possible to run ovirt node on Diskless HW?
  
   Hello,
  
   Doing steps in:
  
  https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Storage_Administration_Guide/diskless-nfs-config.html
  
   I would like to know is some one succeeded to run the host on a diskless
   machine?
   i am using Centos6.6 node with ovirt 3.5.
   Thanks,
   Arman.
  
  
  
  
   ***
   Dr. Arman Khalatyan eScience -SuperComputing Leibniz-Institut für
  Astrophysik
   Potsdam (AIP) An der Sternwarte 16, 14482 Potsdam, Germany
   ***
  
 
  Hi Arman,
  Are you working with ovirt node or standard CentOS?
 
  Note that ovirt node is different as it's works like a live cd-
  it runs from memory. In order to save some configurations (such
  as networking) the local disk is used.
 
 
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[ovirt-users] is it possible to run ovirt node on Diskless HW?

2014-12-03 Thread Arman Khalatyan
Hello,

Doing steps in:
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Storage_Administration_Guide/diskless-nfs-config.html

I would like to know is some one succeeded to run the host on a  diskless
machine?
i am using Centos6.6 node with ovirt 3.5.
Thanks,
Arman.




***

Dr. Arman Khalatyan eScience -SuperComputing Leibniz-Institut für
Astrophysik Potsdam (AIP) An der Sternwarte 16, 14482 Potsdam, Germany

***
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