Hi Zhenbin,

We will still (for now at least) maintain the mounts on the interactive nodes (where you actually log in and work), so you should still be able to do that.  You will only be affected by this change if you still rely on the filesystem being mounted in your LPC condor jobs.  If you are accessing your EOS data in your jobs with xrootd already, you should not notice the change.

Thanks,

—Dave

On Jan 22, 2016, at 11:56 AM, Zhenbin Wu <[log in to unmask]> wrote:

> Hi David,
> 
> After unmounting EOS, how can I copy the files from EOS to my laptop directly? Do I need to
> transfer them to nobackup first, then scp them to my MAC? Thank you very much! 
> 
> Best wishes,
> Zhenbin
>> On Jan 22, 2016, at 11:36 AM, David A Mason <[log in to unmask]> wrote:
>> 
>> Just a reminder — we will be unmounting EOS from the workers next week.  The actual unmount will happen on _Tuesday_ the 26th (yes _26th_ a day later than originally announced), but please plan to have your LPC workflows updated sooner, so you no longer rely on the mounted filesystems in your condor jobs.  See the link below to instructions how to do interact with EOS properly, and don’t hesitate to ask questions if you have them!
>> 
>> Thanks,
>> 
>> —Dave
>> 
>> On Jan 19, 2016, at 1:13 PM, David A Mason <[log in to unmask]> wrote:
>> 
>>> As many of you have encountered we have had performance problems with the EOS filesystems on the LPC with the increased Run 2 analysis activity.  To help mitigate this, especially with approvals for winter conferences upon us, we will need to unmount EOS from the LPC workers on January 25.  We understand this is inconvenient, but have worked to make the change as straightforward as possible.  Access to your EOS data from LPC jobs will still be completely possible throughout and how to continue to do that is documented here:
>>> 
>>> http://uscms.org/uscms_at_work/computing/LPC/usingEOSAtLPC.shtml
>>> 
>>> Please quickly over this next week adapt your scripts and code to access EOS data via xrootd in advance of the change.  Doing this will work now and continue after EOS is unmounted from the batch farm.  For example within CMSSW use "root://cmseos.fnal.gov/store/user/…"  rather than "file://eos/uscms/store/user/…”
>>> 
>>> See the link above for more details and how to handle other uses.  Please follow up questions to the lpc-howto list, and we will do our best to keep you productive as you make this change!   
>>> 
>>> Thanks!   
>>> 
>>> —Dave
>