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Howto mirror an AIX rootvg


The following steps will guide you trough the mirroring of an AIX rootvg.
This info is valid for AIX 4.3.3, AIX 5.1, AIX 5.2 and AIX 5.3.

  • Make sure you have an empty disk, in this example its hdisk1
  • Add the disk to the vg via “extendvg rootvg hdisk1
  • Mirror the vg via: “mirrorvg rootvg”
  • Adapt the bootlist to add the current disk, the system will then fail to hdisk1 is hdisk0 fails during startup
    • do bootlist -o -m normal
    • this will list currently 1 disk, in this exmaple hdisk0
    • do bootlist -m normal hdisk0 hdisk1
  • Run a bosboot on both new disks, this will install all software needed for boot on the disk
    • bosboot -ad hdisk0
    • bosboot -ad hdisk1

Checking SAP R/3 Database via BRTOOLS


BRTOOLS is a database tool developed by SAP to help SAP Basis manage his Oracle based SAP R/3 database. In the last tutorial, I had shown you how to check your database through DB13 tcode. DB13 is database independent tcode to manage your database whether you’re using MS SQL, Oracle, DB2, or SAPDB.

Here, I am going to demonstrate how to use BRTOOLS to check your Oracle 9i database. You need to logon to your SAP R/3 server using ORA[SID] user.

Type BRTOOLS on your console and then you’ll have this screen. For your information, I’am using UNIX OS. It might be different when you’re using Windows OS.

Choose number 6 option by typing 6 and then press ENTER.

To check your database choose number 1 option and then press ENTER.

In this screen, you might need to input some information about your database such as your SAP Database profile, your database user and password, database owner, and something you might not want to be checked. For this moment, I am using default properties and press ENTER.

This screen show you BRTOOLS confirmation. Just type C and then press ENTER to proceed to the next step.

Press ENTER to proceed.

Now, you’ll see that database check process is running. Wait until it finished.

Type S to stop and exit from BRTOOLS menu. Now you had learn how to check your SAP R/3 database by using DB13 tcode and BRTOOLS command. In the next tutorial, I’ll show you another tips and trick that might be useful and helpful. Stay there and always connected.

Critics and suggestion are welcomed. Please feel free to contact me on devratt@yahoo.com.