Hi all,

[EMAIL PROTECTED] wrote:
> 
> John Holland <[EMAIL PROTECTED]> schrieb am 25.01.02:
> > hi,
> >
> > has anyone been successful creating a db instance on a raw device using
> > sapdb 7.3.0.18, suse 7.2 and linux kernel 2.4.4-4GB.
> >
> > i've tried serval times w/o success.
> > i've heard of success stories using other operating systems.
> >
> > til then,
> >
> > john
> >
> 
> we tried and gave up, see (n.b. he is a colleague of mine...)
> 
> http://groups.yahoo.com/group/sapdb-general/message/185
> 
> It worked to a certain stage (we could create and use it),
> but failed with bad datapages within.
> 
> One important point was that specifying raw did not work
> (somehow SAPDB could not verify the size), but using link to
> raw allowed to create the database.
> We are still not sure wether the errors stem from SMP-kernel
> (there were some reports for data-clobbering in the kernel mailinglists),
> SAPDB internals or some other components (aic module... ).
> 
> regards
> 
> Wolf N�cker
> 

I managed to install a SAP APO (special R/3 version) on basis of SAP DB
7.3 with RAW devices.
It even worked like it was explained in the documentation delivered by
SuSE with the SLES-7 and together with the shipped 2.4.7-4GB kernel. It
even works with a Volume Manager inbetween, altough this is not
supported by SAP! 

The only Problem currently is, that you have to specify one page lesser
than the theortical maximum number of pages you would get, when you
devide the megabytes - listed in the LVM tool for the RAW device - by 8
kbytes pages. Specify this n-1 number when you try to create the
devspaces. As far as I know, this page is needed for adminitration
issues. 

So try it :-). So far I didn't get any database crash or similar for the
last 6 weeks nonstop running.

Ciao  Ralf
__________________________________________________________________
Dr. Ralf Czekalla                         mailto:[EMAIL PROTECTED]

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