Oracle Magzine Online

Find the Oracle Magzine for May/June-08

http://www.oraclemagazine-digital.com/oraclemagazine/20080506/

Oracle RAC docs

http://www.scribd.com/search?query=ORACLE+RAC

FATAL:Error inserting oracleasm

Error Message

(lib/modules//kernel/drivers/addon/oracleasm/oracleasm.ko) Permission denied

oracleasm: Unable failed

Kernel Ver:2.6.9-22.EL

Resolution:

Check for O.S

cat /etc/redhat-relase

Disable SELinux(RHEL4 U2 Only)

run as root

/usr/bin/system-config-securitylevel

After making changes need to reboot the server.


For more details check http://www.oracle.com/technology/pub/articles/hunter_rac10gr2_2.html#17

Hope it helps

Two Background Processes specific to an ASM

Apart from standard back ground processes, in ASM there are two new background processes.

RBAL: The Primary function of this background process is to open all disks listed under each disk group and to make them available to the various clients. It also created rebalance plan to move extents between the disks when a disk is added to disk group or removed from an existing disk group.

ARBn: The primary function of this background process is messaging and extent management this invoked only when disk rebalance or extent redistribution activity is required. Such activity happens when disk is added to the existing disk group or a disk is dropped from an existing disk group.

Ref:Murali V

Command to find Oracle Internet Directory(OID) version

$ORACLE_HOME/bin/ldapsearch -p port -D cn=orcladmin -w passwd -L -s base -b "" "objectclass=*" orcldirectoryversion

port: LDAP Port on OID server.