> -----Original Message-----
> From: GRIDPP2: Deployment and support of SRM and local storage management
> [mailto:[log in to unmask]] On Behalf Of Greig A Cowan
> Sent: 13 October 2005 16:30
> To: [log in to unmask]
> Subject: dCache CopyManager
> 
> Hi all,
> 
> I recently tried using the dCache CopyManager to copy the contents of a
> pool into another (empty) pool. The process did eventually work (I now
> have two pools with the same files on them), but it took a long time to
> complete the copy operations and a large number of the copies initially
> failed. I emailed the dCache developers about this and it turned out that
> I was using a old version (1.3) of the CopyManager that was to be used by
> the developers and not intended for release. The proper version will be
> included in the next dCache release (1.6.6), but I think they were willing
> to provide a patch if the functionality was desired just now. They did not
> mention when 1.6.6 was due to be released.
> 
> To initiate the CopyManager, I followed the instructions in the dCache
> book to set the pools up for the transfer. It was fairly simply to do, but
> there are a few issues that you should look out for:
> 
> Section 1.2 of the CopyManager part of the dCache book states that
> "The following is only necessary, if a copy manager cell is not already
> started. This might already be done e.g. in the utility Domain."
> 
> I found that our dCache did alrady have a CopyManager cell in the utility
> domain, but this isn't the correct cell that you want to use. Many of the
> commands referred to do not work in this cell (I don't know what it is
> for, maybe a previous attempt at implementing this functionality).
> 
> Instead, what you have to do is ignore the advice and follow the
> instructions which refer to setting up a file
> /opt/d-cache/config/copy.batch
> 
> Once this is done, you will need to start the CopyManager by running:
> 
> /opt/d-cache/jobs/copy start
> 
> This will set up a new CopyDomain. To execute any of the CopyManager
> commands, you will need to go into the cell 'copy0' of this domain (or
> whatever you have called it).
> 
> Once I knew about which cell to use, the rest of the copy procedure was
> fairly simple.

> I would probably wait until 1.6.6 before using the CopyManager though.
> If you want to use it before then, let me know if you get stuck.

Thanks Greig for trying out the CopyManager. 
It is not urgently required but it is a useful functionality in order to
manage dcache-pools easily later on. 

Cheers,
Mona 

====================================
Mona Aggarwal
Tel. (+44) 20 759 47809
Imperial College London
High Energy Physics Department
Prince Consort Road, London, SW7 2BW 
====================================