by Galileo Team | Dec 23, 2015 | Technical Deep Dives
I recently performed some Live Partition Mobility (LPM) testing for a customer, and ran into a number of problems – see Part 1 of this post for the full story on all of the problems and solutions. The most complicated problem required us to investigate our SAN storage...
by Galileo Team | Dec 16, 2015 | Technical Deep Dives
I hadn’t touched Live Partition Mobility for a couple years, but a customer requested that I test LPM for them on several AIX LPARs which were giving them errors when they attempted the LPM operations. I had successfully performed LPM operations for this customer on...
by Galileo Team | Dec 10, 2015 | Technical Deep Dives
This blog entry presents a basic introduction to Oracle execution plans. What exactly is an Oracle execution plan? An execution plan consists of the steps that the database server will take to accomplish a DML statement, e.g. SELECT, INSERT, DELETE, UPDATE, etc. The...
by Galileo Team | Nov 18, 2015 | Technical Deep Dives
GlusterFS has been a growing distributed filesystem, and is now a part of Red Hat Storage Server. GlusterFS, also with Ceph (not covered in this article), have created a software based filesystem free of metadata. By using a hash algorithm distributed to the clients,...
by Galileo Team | Jul 24, 2015 | Technical Deep Dives
Within the world of POWER hardware, the PowerVM SEA (Shared Ethernet Adapter) has been the standard when it comes to virtualizing an ethernet adapter for quite some time. With the introduction of SR-IOV (Single Root I/O Virtualization) the additional VIOS layer is...
