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IBM Mainframe

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IBM Mainframes   IBM mainframes are large computer systems produced by IBM since 1952. A typical IBM mainframe computer would look like below:-   IBM zSeries z800 Mainframe Computer From 1950s-60s IBM manufactured and marketed several large computer models known as IBM 700/7000 series. The first generation 700s were based on Vaccum Tubes , while the later, the second generation 7000s used Transistors . These machines established IBM's dominance in   Electronic Data Processing("EDP") .  The mainframe computer costed over 2M USD in mid 1950's.The latest mainframe computers are IBM z10 EC(Enterprise Class) which costs around 1M USD announced on February 26th, 2008.   There were two categories of machines with completely different instruction sets. One dealt with engineering and scientific data and the other set of machines dealt with commercial data. The IBM Mainframe systems are mainly designed for Throughput and Relaibality . They are ...
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Restoring Oracle Database From a Cold Backup on a new Server.

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Step #0: Set up the Oracle Code Tree. cd $ORACLE_HOME/clone/bin perl clone.pl ORACLE_HOME="/u002/app/oracle/product/11.2.0/db_1" ORACLE_HOME_NAME="TST_ORACLE_HOME" ORACLE_SID="TST" ORACLE_BASE="/u002/app/oracle" inventory_loc=/u002/app/oracle/oraInventory inst_group=dba export ORACLE_HOME=/u002/app/oracle/product/11.2.0/db_1 export ORACLE_SID=uhcmtst export ORACLE_BASE=/u002/app/oracle export PATH=$PATH:$ORACLE_HOME/bin/. export PATH=$PATH:$ORACLE_HOME/OPatch/. /u008/app/oradata/uhcmtst/controlfiles /u008/app/oradata/uhcmtst/datafiles /u008/app/oradata/uhcmtst/redologfiles Ensure that you have a VALID cold backup. The cold backup mentioned here is obtained by using RMAN in mount mode on a 11g Database. Step #1: Restore the Control Files [oracle@dvpsaixdb02us] controlfiles $ rman target / Recovery Manager: Release 11.2.0.2.0 - Production on Wed Nov 8 07:00:47 2017 Copyright (c) 1982, 2009, Oracle and/or its affiliates.  All rights...
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