[Labs-l] Labs migration starts on Tuesday

[Andrew Bogott]

On 3/1/14 1:25 AM, Petr Bena wrote:
> I am confused about /data mounpoint
OK, with luck I will not confuse further.
>
> You say:
>
> The contents of your shared /data/project or /home directories will
> not be immediately available in eqiad.
Yep.  eqiad labs is, for now, a blank slate.
>
> Does it mean that if I decide to move the content by hand, using SCP,
> it will be overwritten anyway sooner or later?
No.  Indeed, you are encouraged to move that content by hand -- just 
please coordinate with us so we know what you're doing.

> How do I decide if I
> want to have this content moved by ops or by myself? What if I want to
> move just some items from /data/project and remaining data can be
> safely nuked?
The next two weeks are designated for you to do exactly that -- move 
files by hand, and select which things to abandon.  This is strongly 
encouraged!  Once you're done and ready to abandon other files please 
make a note to that effect on the migration progress page ( 
https://wikitech.wikimedia.org/wiki/Labs_Eqiad_Migration_Progress ).

If in two weeks there's no note on that page and I see that your eqiad 
shared dirs are still empty then I'll make a unilateral copy of everything.

(There's one caveat here:  Because the file copies are going to take a 
super long time, I've already started a job that will haphazardly copy 
files over to eqiad and stow them in obviously-named subdirs, e.g. 
'glustercopy' or 'nfscopy'.  Those are there to save time as part of a 
future migration... you should leave them be but otherwise ignore them.  
If you opt for self-migration then you or I can just erase those dirs 
later on if you have them.)

I hope this makes sense!  Please let me know if I'm still being unclear.

-Andrew