FROM SQL ON A UNIX MAINFRAME

TO SQL ON A NEW UNIX MIDRANGE

WHAT COULD POSSIBLY GO WRONG

The last thing we expected was issues with SQL servers

Manual discovery of database server instances was a nightmareWhich instances running, where, why and who forWhat versions were running for what bits of business logicWhy was one instance running slower than anotherHow to map metadata without the aid of an Ouija boardWho had access on the old system & who needed access on the newSizes of databases were not consistent across both platformsCopy of SQL logic from one platform to the next didn’t always workMeasuring performance with same metrics & getting different resultsManagement tools just did not exist so we had to write some

EVERYTHING BUT THE SQL PLATFORM?