Moving 1 PB of data would take loads of time, 
- check if this new data center provides something similar to 
http://aws.amazon.com/importexport/
- Consider multi part uploading of data
- consider compressing the data


On Aug 3, 2012, at 2:19 PM, Patai Sangbutsarakum wrote:

> thanks for response.
> Physical move is not a choice in this case. Purely looking for copying
> data and how to catch up with the update of a file while it is being
> migrated.
> 
> On Fri, Aug 3, 2012 at 12:40 PM, Chen He <airb...@gmail.com> wrote:
>> sometimes, physically moving hard drives helps.   :)
>> On Aug 3, 2012 1:50 PM, "Patai Sangbutsarakum" <silvianhad...@gmail.com>
>> wrote:
>> 
>>> Hi Hadoopers,
>>> 
>>> We have a plan to migrate Hadoop cluster to a different datacenter
>>> where we can triple the size of the cluster.
>>> Currently, our 0.20.2 cluster have around 1PB of data. We use only
>>> Java/Pig.
>>> 
>>> I would like to get some input how we gonna handle with transferring
>>> 1PB of data to a new site, and also keep up with
>>> new files that thrown into cluster all the time.
>>> 
>>> Happy friday !!
>>> 
>>> P
>>> 

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