Recently I had a client ask me if there was a way to calculate the size of individual indexes on a table and how to interpret what is reported by the table function sysproc.admin_get_index_info. The client asked whether the value is reported as a sum per table or per...
Recently, I was working on a system and noticed some odd behavior – running a simple db2pd command was taking what felt like a "long" time. I used the time utility to validate my impression: [email protected] $ time db2pd - Database Member 0 -- Active -- Up 0 days...
Recently while applying a fixpack, I encountered this error: ERROR: An error occurred while setting DB2 runtime path. Contact a technical service representative. Setting DB2 library path :.......Failure DB2 Fix Pack Update log file finished at: Sat Aug 1 18:23:29 2020...
The SQL Server Migration Assistant (SSMA) is a tool for transitioning from other platforms like Db2 to Microsoft SQL Server. A reference guide for the SSMA can be found in Microsoft's SQL Docs. This article addresses the issue of failed migrations without warnings or...
Db2's Database Partitioning Feature (DPF) allows a single Db2 instance to span multiple physical servers — allowing a single Db2 database to scale out to sizes well beyond what is possible on a single physical server. To manage a DPF environment, Db2 needs to be able...
A colleague and I were recently working on a Db2 server with a large amount of memory (512 Gb) and were supporting the system administrators in applying operating system maintenance to bring the system from RedHat Enterprise Linux (RHEL) 7.6 to RHEL 7.8. The operating...
Recently, I was working on a database using HADR with failover handled by TSAMP. The database was configured to use a virtual IP (VIP) address. However, when I tested the failover with the application team, some of the applications were getting SQL1776N errors from...
The Db2 RDBMS offers many great tools for getting things done. There are, however, times when tools are unavailable. This isn’t a problem when you’re performing a simple and discrete task. When the task has many iterations then like dropping triggers or granting...
In my previous blog, I presented some of the issues you can run into when setting up one auxiliary HADR standby and a potential solution. This blog discusses setting up two auxiliary standby databases in detail. Let's start with all the information we need to set the...
Sometimes, while running a database backup or restore, you may encounter a situation where you need to terminate the backup or restore operation. If the backup is writing to disk, this is quite easy: You can generally type Ctrl-C, and the Db2 Command Line Processor...