G'morning all!

(Using Red Hat Linux Enterprise 4.1)
I have a Dell PowerEdge 2800 with a PERC 4 RAID controller.  The RAID
controller has one RAID 1 mirror and one RAID 5 stripe volume created.
 We installed most of the OS stuff on the RAID 1 set and the
/usr/local and /var on the RAID 5 set (since the Red Hat MySQL rpm
puts the data directory under /var ).

I'd like to know if there are any better ways to configure this (I can
repartition and reinstall the OS, if necessary).

<background>
I'm having problems with a Tomcat application (OSP - ePortfolios) that
uses a lot of disk space for uploaded files (under Tomcat directory
which I install under /usr/local). Not sure how large the MySQL
database will grow to be. I installed the Red Hat MySQL rpm, but not
sure if it is RAID-aware and considering compiling MySQL from source (
--with raid ?). Or my problem may be with the MySQL Connector/J driver
(which would be a question for the mysql-java list).

The application builds and installs fine with no errors, but Tomcat
only works for the static directories (i.e. /jsp-examples ) and not
with the application that interacts with MySQL.

I've installed this application successfully on an identical non-raid
system. The only differenced between the two machines is that the
problem child is RAID (configured as above) and the java sdk version
changed from _08 to _09.
</background>

1) Best way to configure the RAID/partitions for best MySQL performance?
2) Is MySQL RAID-aware if not compiled: - - with raid? (unsure if the
Red Hat rpm used that)
3) Is there a way to tell if a problem is specifically related to the
MySQL Connector/J driver or a problem connecting to MySQL? (probably
should direct that one to the mysql-java list, eh?)

Thanks in advance for any help. This is the first RAID machine I've
ever worked with.
: \

Darren Addy
University of Nebraska at Kearney

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