Hello Ricardo
Couple of clarifications are needed.
Content = Metadata + Data(bitstreams in DSpace lingo)
DSpace uses Postgresql for its internal management it does not store
its data(bitstreams) within it's internal RDBMS (Postgresql/mysql/
oracle etc). DSpace uses its RDBMS component for managing the
various descriptive, administrative and structural metadata
surrounding the data.
DSpace bitstreams can be stored on local file systems or you
optionally decide to store DSpace bitstreams within SRB.
SRB middle-ware is essentially a full featured data grid management
system plus lots more and it uses RDBMS(Oracle/Postgresql) to manage
its internals.
The DSpace configuration needs to be modified to make DSpace aware
that it's bitstreams are being managed via SRB instead of local
filesystem.
Please do not draw any false conclusions that DSpace or SRB are
storing the Data within their RDBMS (Postgresql/Oracle) components.
The RDBMS components are essentially used within the respective
applications to manage metadata (both internal and external), nothing
more.
DSpace comes with default Postgresql, and SRB comes with options to
choose between Postgresql and Oracle.
DSpace and SRB have some common features but they are different
applications. So you really need to do some analysis of your
institution's requirements prior to embarking on technology pathway
with either one of them or a combination of both.
Once you decide that you need both DSpace front-end and other
utilities on top of SRB storage layer abstraction you need to
configure your DSpace instance's config file to reflect SRB usage
within DSpace.
You'll need to rethink your ingest mechanisms. Your existing
straightforward ingest into DSpace gets replaced by ingest into SRB
and subsequent registration into DSpace.
I can attempt to help offline if you require further support.
Thanks
Unni
Unni Pillai | Project Manager NYU NDIIPP-PDPTV | Digital Library |
NDIIPP-PDPTV
✉ [EMAIL PROTECTED] | ✆ (212) 992-9741 | AIM: [EMAIL PROTECTED] |
Jabber: [EMAIL PROTECTED]
On Sep 20, 2007, at 1:44 PM, Ricardo Borillo wrote:
Hi all,
I'm new to DSpace and i'm evaluating configuration options for best
platform availability.
I have read SRB documentation and i reach some interesting point:
"""
The Storage Resource Broker (SRB) is a client/server middleware that
provides clients with a set of uniform interfaces to distributed and
heterogeneous storage resources Storage resources handled by the the
SRB include the UNIX file system, archival storage systems such as
UNITREE and HPSS, and database Large Objects managed by various DBMS
including DB2, Oracle and Illustra.
"""
It seems that i can use my Oracle database as an storage for DSpace
content (not only metadata). That's great for me, but i was unable to
locate documentation or examples showing how to configure DSpace with
SRB working with an Oracle content storage...
Please, anyone can give me some directions on this topic?
Thanks a lot!!
--
Salut,
====================================
Ricardo Borillo Domenech
http://xml-utils.com
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