Traditional disk based storage systems use a sector size of 512 bytes, some all-flash-arrays use 4K sectors sizes, but it's not something we generally consider, do you know what you are using ? If you're not sure you may want to check-out now of my recent posts on how to check disk sector sizes from... Continue Reading →
How to check your disk sector size
I was recently asked 'How can I check to see if my storage supports 4K sector sizes, and if my Oracle 19c database is using it' ? In this post I will share how to check disk sector sizes from Linux, from Oracle Automatic Storage Management (ASM) and via the Oracle kfed utility. Traditional disk... Continue Reading →
Oracle 19c RAC database online migration to ActiveCluster for extended / stretched RAC clusters
In this post I will share how to perform an online move of an Oracle 19c RAC database to a Pure Storage ActiveCluster Pod to provide Active-Active synchronous replicated storage for an extended / stretched Oracle RAC cluster. Step 1 - ActiveCluster Pod The first step is to create a Pod, in the example below... Continue Reading →