Background In my previous post on ZFS I showed how ZFS causes fragmentation for Oracle database files. At the end I promised (sort of) to also come back on topic around how this affects database performance. In the meantime I…
Fun with Linux UDEV and ASM: Using UDEV to create ASM disk volumes
Because of the many discussions and confusion around the topic of partitioning, disk alignment and it’s brother issue, ASM disk management, hereby an explanation on how to use UDEV, and as an extra, I present a tool that manages some…
Getting the Best Oracle performance on XtremIO
(Blog repost from Virtual Storage Zone – Thanks to @cincystorage) UPDATE: I’ll say it again because there seems to be some confusion: THIS IS A REPOST! Original content is from the Virtual Storage Zone blog (not mine). Just reposted here…
The public transport company needs new buses
A public transport company in a city called Galactic City, needs to replace its aging city buses with new ones. It asks three bus vendors what they have to offer and if they can do a live test to see…
Getting the most out of your server resources
As an advocate on database virtualization, I often challenge customers to consider if they are using their resources in an optimal way. And so I usually claim, often in front of a skeptical audience, that physically deployed servers hardly ever…