Ron Ekins' – Oracle Technology, DevOps and Kubernetes Blog
A technical resource for Data Professionals
Background As a long time fan of the Oracle ASM Filer Driver, one of the major benefits for Oracle ASM Filter Driver (AFD) is AFD Filtering. AFD can ensure writes are only performed by trusted and registered Oracle processes, blocking potentially damaging writes that would have otherwise resulted in data corruption. Unfortunately, a recent Linux... Continue Reading →
Background Ok, what is the Oracle ASM Filter Driver ? The Oracle ASM Filter Driver (Oracle ASMFD) is an Oracle provided Linux kernel module that resides in the IO path of the Oracle ASM disks. Oracle ASMFD provides a number of advantages over the use of ASMLIB and UDEV managed volumes, these include: storage protection... Continue Reading →
I have previously shared how to install the Oracle ADM Filter Driver (ADMFD) using the CLI and also using the Oracle Installer graphical UI. In the post I will share how to migrate existing Oracle ASM UDEV managed disks to use the newer ASM Filter Driver (ASMFD). To confirm ASM Filter Driver has already been... Continue Reading →
Background Before we start if you are new to the Oracle ASM Filter Driver (ASMFD) you may want to visit a couple of my previous Blog posts where I detailed how to set-up the ASM Filter Driver (ASMFD) via Oracle 19c Grid Infrastructure installer or the Linux command line interface (CLI). In this Blog I... Continue Reading →
I have previously Blogged about configuring the Oracle ASM Filter Driver (ASMFD) using the command line and also the Oracle 19c Grid Infrastructure installer, if you enjoy this video you may want to visit the links above to help you get started. If you're still unsure or not had a good reason to use the... Continue Reading →
Following a discussion on the options on how to reclaim space (TRIM/Unmap) on Oracle database using flash storage I though this would make a good topic for a new Blog post. If your Oracle database is using a modern file system it's pretty straight forward, use the 'discard' option. However for the majority of us... Continue Reading →