[Twg] TWG meeting minutes for 2012-03-15

[Alex Kulyavtsev]

>    * migration and replication
>       We spent a good bit of time defining terms:

>
>       Replication is the process of copying data from one file  
> system to another.
>
>       Migration moves file objects within the same file system.

I would suggest we do not limit ourselves using term "replication"  
only for remote replication, i.e. "replication" vs. "migration" as in  
remote vs. local.  Term "replication" is used both for remote  
replication (e.g. Grid 'Replica Catalog') and for local (e.g.  
replication in HDFS). It will be difficult to substitute term "File  
Replica."

"Replicaton" for creating exact copy of the data, local or remote.  
"Migration" for relocation of the data where the original is removed.  
"[continuous] remote replication" or "filesystem replication" for  
existing Xyratex implementation where use of simple "replication" can  
cause ambiguity. I think in most cases the meaning 'remote' or 'local'  
replication is clear from context.

Alex.