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Posted: Wed, 03/10/2010 - 23:17
I want to checkpoint an instance & restart it from checkpointed state,so that the state of service running inside it is not lost.When i am checkpointing/restarting VMs through xen (using xm save & xm restore) ,i end up with checkpointed file which is several GB in size. can i store this checkpoint file in STORAGE controller & later use it for restarting VM?Apart from this checkpointed file,is there anythng else dat i will need to restart virtual machine from same state?
Posted: Fri, 03/12/2010 - 04:26
The size of checkpoint file using xm is equal to 1GB(ram allocated to instance).Will i be able to store dis much big file in walrus?
how much time it will take for file transfer??is there any command which will allow me to store files in walrus?
Posted: Fri, 03/12/2010 - 10:31
Hello,
walrus can handle much bigger files than that: the performance will really depend on your hardware (machine, disk and network) so it's hard to predict them. We have some documentation on workign with walrus http://open.eucalyptus.com/wiki/EucalyptusWalrusInteracting_v1.6.
Let us know when you get it working.
cheers
graziano
Posted: Thu, 03/11/2010 - 14:51
Hello,
Eucalyptus does not support start/stop and checkpoint at the moment. At least not directly. You could run off an EBS volume (for example in a chroot environment) and checkpoint the EBS. Of course if you are using xm and it already works for you, you can always store the state in walrus.
cheers
graziano