[gin-data] progress...

[Arie Shoshani]

Dave,

SRMs maintain metadata information about Files and spaces (acquired 
through space reservation functions).  The metadata includes information 
about file properties (creation time, etc.), the directories they are 
organized into, and the spaces they were assigned to.  All this 
information is made available through metadata functions: specifically 
srmLs, and srmGetSpaceMetadata.

It is an easy exercise to describe this information using some schema 
mechanism,
like relational schemas or XML DTD.  There was an early attempt to do 
that with the
GLUE schema, but eventually it was too much detail (for millions of 
files) to keep
such as schema instances updated, so this idea was abandoned.

Arie and Alex


Dave Berry wrote:
> Hi,
>
> In the OGSA Data WG, we think there is a need for a short standard for
> file metadata, covering the usual "stat" properties such as creation
> time, modification time, read-only, etc.  Is this group looking at
> mapping these properties between systems, or at a common metadata model,
> or any other way of tackling this issue?
>
> Best wishes,
>
> Dave.
>
>   
>> -----Original Message-----
>> From: owner-gin-data at ggf.org [mailto:owner-gin-data at ggf.org] 
>> On Behalf Of Erwin Laure
>> Sent: 25 July 2006 10:39
>> To: gin-data at ggf.org; Reagan Moore; asim at lbl.gov; Gregor von Laszewski
>> Subject: [gin-data] progress...
>>
>> Hi,
>>
>> GGF18 is coming up soon. Could we please get an update on the interop 
>> tests of SRB, SRM, and gridFTP?
>>
>> We will use this information to make an interop matrix 
>> available on the 
>> GIN gridforge pages.
>>
>> Also, we should prepare instructions of how people can run 
>> these tests 
>> themselves, i.e. test, whether their infrastructure is interoperable 
>> with others.
>>
>> Cheers,
>>
>> -- Erwin
>>
>>
>>