Tag: Explain

What Is $ADMIN_SCRIPT_HOME ???

Posted on by Osama Mustafa in Application
As We All Know if you need to start/shutdown Oracle Apps you need go $ADMIN_SCRIPT_HOME In R12 Or $CONTEXT_HOME in R11

This Article Explain What These Scripts Do : 

adstrtal.sh

Master script to start all components/services of middle tier or application tier. This script will use Service Control API to start all services which are enabled after checking them in context file (SID_HOSTNAME.xml or CONTEXT_NAME.xml)

adstpall.sh

Master script to stop all components/services of middle tier or application tier


adalnctl.sh

Script to start / stop apps listener (FNDFS and FNDFS). This listener will file will be in 10.1.2 ORACLE_HOME (i.e. Forms & Reports Home)
listener.ora file will be in $INST_TOP/apps/$CONTEXT_NAME/ora/10.1.2/network/admin directory
(Mostly similar to one in 11i with only change in ORACLE_HOME i.e. from 8.0.6 to 10.1.2 )

adapcctl.sh

Script to start/stop Web Server or Oracle HTTP Server. This script uses opmn (Oracle Process Manager and Notification Server) with syntax similar to opmnctl [startstop]proc ohslike opmnctl stopproc ohs .

adcmctl.sh

Script to start / stop concurrent manager,

adformsctl.sh

Script to start / stop Forms OC4J from 10.1.3 Oracle_Home. This script will also use opmnctl to start/stop Forms OC4J like
opmnctl stopproc type=oc4j instancename=forms

adformsrvctl.sh

This script is used only if you wish to start forms in socket mode. Default forms connect method in R12 is servlet.
If started this will start frmsrv executable from 10.1.2 Oracle_Home in Apps R12

adoacorectl.sh

This script will start/stop oacore OC4J in 10.1.3 Oracle_Home. This scripts will also use opmnctl (similar to adapcctl & adformsctl) to start oacore instance of OC4J like
opmnctl startproc type=oc4j instancename=oacore

adoafmctl.sh

 This script will start/stop oafm OC4J in 10.1.3 Oracle_Home. This scripts will also use opmnctl (similar to above) to start oacore instance of OC4J like
opmnctl startproc type=oc4j instancename=oafm

adopmnctl.sh

This script will start/stop opmn service in 10.1.3 Oracle_Home. opmn will control all services in 10.1.3 Oracle_Home like web server or various oc4j instances. If any services are stopped abnormally opmn will/should start them automatically.

Thank You 
Osama Mustafa 
     

RAID PRINCIPLE

Posted on by Osama Mustafa in Operating system
RAID : Redundant Array of Inexpensive (Independent) Disks

RAID TYPE :

  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 10 (also known as RAID 1+0)

RAID LEVEL 0

 

  Following are the key points to remember for RAID level 0.

  • Minimum 2 disks.
  • Excellent performance ( as blocks are striped ).
  • No redundancy ( no mirror, no parity ).
  • Don’t use this for any critical system.

RAID LEVEL 1


Following are the key points to remember for RAID level 1.

  • Minimum 2 disks.
  • Good performance ( no striping. no parity ).
  • Excellent redundancy ( as blocks are mirrored ).

 

RAID LEVEL 5

 Following are the key points to remember for RAID level 5.

  • Minimum 3 disks.
  • Good performance ( as blocks are striped ).
  • Good redundancy ( distributed parity ).
  • Best cost effective option providing both performance and redundancy. Use this for DB that is heavily read oriented. Write operations will be slow.

RAID LEVEL 10

                                        


 Following are the key points to remember for RAID level 10. 

  • Minimum 4 disks.
  • This is also called as “stripe of mirrors”
  • Excellent redundancy ( as blocks are mirrored )
  • Excellent performance ( as blocks are striped )
  • If you can afford the dollar, this is the BEST option for any mission critical applications (especially databases).