[Linux-cluster] Cluster for DB2 database

Jordi Prats jprats at cesca.es
Fri Sep 28 06:46:49 UTC 2007


Hi,
HACMP seems to be, like RH-cluster, a active-pasive cluster:

http://www-03.ibm.com/systems/p/software/hacmp.html

So, you will not increase performance, just avaliability. If you want to 
increase performance you should look for a cluster database like 
MySQL-cluster or Oracle RAC. I don't know much about DB2, so I don't 
know if there's a DB2-cluster.

regards,
Jordi


Emerson Henrique da silva wrote:
> Hello Jordi,
>
> Thanks for your comments.
>
> Really, I was thinking about this hypothesis too but, I need to 
> improve the performance overall. Of course, HA is a implied concept on 
> that kind of Cluster.
> GFS or HA-iSCSI, only will  help me to consolidate the Database files 
> but wont give the growth in scale, that is what I'm  looking for.
>
> Our database partner is insisting to make us to use the IBM's HACMP 
> but, I'm not sure about this yet.
>
> What do you thing ?
>
>
>
> Emerson
>
>
>
>
> 2007/9/26, Jordi Prats < jprats at cesca.es <mailto:jprats at cesca.es>>:
>
>     Hi,
>     I'm not a expert on DB2 but I don't think RHcluster will give you a
>     performance-oriented cluster of DB2 databases. Instead, I could
>     provide
>     you a HA database or a HA-iSCSI target or GFS for your datafiles.
>     Remember that if you share the same datafiles DB2 should be
>     cluster-aware.
>
>     By the way, Oracle RAC it's a cluster by itself, it does not use RH
>     cluster in any way.
>
>     Hope this helps.
>
>     regards,
>     Jordi
>
>     Emerson Henrique da silva wrote:
>     > Hello all!
>     >
>     >
>     > Does anybody ever used Red Hat cluster for DB2 Databases ?
>     (performance
>     > clusters)
>     > Is it similar to Oracle's RAC, that have a particular cluster
>     manager ?
>     > In my readings, I fell that RH Cluster is not the right way to
>     achieve
>     > the targets that I've finding. In the IBM's site, the documents
>     are very
>     > confused to locate it.
>     >
>     >
>     > Thanks for comments.
>     >
>     >
>     >
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-- 
......................................................................
         __
        / /          Jordi Prats
  C E / S / C A      Dept. de Sistemes
      /_/            Centre de Supercomputació de Catalunya

  Gran Capità, 2-4 (Edifici Nexus) · 08034 Barcelona
  T. 93 205 6464 · F.  93 205 6979 · jprats at cesca.es
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