Artikelen gelabeld: iops

The IOPS race is over

Infrastructure has always been a tough place to compete in. Unlike applications, databases or middleware, infrastructure components are fairly easy to replace with another make and model, and thus the vendors try to show off their product as better than the one from the competition. In case of storage subsystems, the [...]

Baking a cake: trading CPU for IO?

Sometimes I hear people claim that by using faster storage, you can save on database licenses. True or false? The idea is that many database servers are suffering from IO wait – which actually means that the processors are waiting for data to be transferred to or from storage – and [...]

Silly Little Oracle Benchmark – RPM edition

A while ago Kevin Closson announced a new release of the well-known SLOB kit. SLOB is a simple but powerful toolkit that drives lots and lots of IO on a real Oracle database (so for performance testing of database platforms, it’s much better than synthetic IO tests). A previous version was bundled [...]

Introducing Outrun for Oracle

Overview If you want to get your hands dirty with Oracle database, the first thing you have to do is build a system that actually runs Oracle database. Unless you have done that several times before, chances are that this will take considerable time spent on trial-and-error, several reinstalls, fixing install [...]

Oracle ASM vs ZFS on VNX

In my last post on ZFS I shared results of a lab test where ZFS was configured on Solaris x86 and using XtremIO storage. A strange combination maybe but this is what a specific customer asked for. Another customer requested a similar test with ZFS versus ASM but on Solaris/SPARC and [...]