Open Stack

Hello,
It solves the problem. 
Thanks for the help.

Regards,
Batsayan Das
Tata Consultancy Services
Mailto: batsayan.das at tcs.com
Website: http://www.tcs.com
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-----Swapnil Kulkarni <swapnilkulkarni2608 at gmail.com> wrote: -----
To: Batsayan Das <batsayan.das at tcs.com>
From: Swapnil Kulkarni <swapnilkulkarni2608 at gmail.com>
Date: 08/21/2013 12:51PM
Cc: openstack at lists.openstack.org
Subject: Re: [Openstack] How to restore existing vms after host reboot in devstack

Hello,

I think the cause is you are running stack.sh everytime you restart devstack which clears the configuration. rejoin-stack.sh can help for your cause.

Before proceeding for running the script please associate the vg file with a loop device with following command with root
 
losetup /dev/loop2 /opt/stack/data/stack-volumes-backing-file

Please use rejoin-stack.sh script located at your devstack installation directory or /opt/stack/devstack

 
Best Regards,
Swapnil Kulkarni
swapnilkulkarni2608 at gmail.com

 

On Wed, Aug 21, 2013 at 12:37 PM, Batsayan Das <batsayan.das at tcs.com> wrote:
 Hi, 
 
I launch the openstack by running stack.sh as mentioned in http://devstack.org/guides/single-machine.html 
 
I created some images and instances in devstack using dashboard. When I reboot Host machine and run stack.sh again, those images and instance got lost, and I am not able to see those images and instances that I already created using dashboard. 
 
My question is 
 
1. Is this what is expected from host reboot? 
2. What I need to do to retain images and instances between multiple host reboots. 
 
The thread http://www.mail-archive.com/openstack@lists.launchpad.net/msg08453.html says to use the switch  --start_guests_on_host_boot --resume_guests_state_on_host_boot. I am not sure how I should use these , which config files should have those switched enabled when I launch the devstack by simply running stack.sh  
 
I guess I need to pass some parameters or need to  do **something** before running to stack.sh so that it does not destroy already crested instances and images. As I understand stack.sh  reinitialize  all the stuffs 
 
Looking for any help. 
 
Regards, 
Batsayan Das
 Tata Consultancy Services
 Mailto: batsayan.das at tcs.com
 Website: http://www.tcs.com
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 Experience certainty.        IT Services
                         Business Solutions
                         Consulting
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