December 17, 2014

SPARC Logical Domains: Alternate Service Domains Part 3

In Part One of this series we went through the initial configuration of our Logical Domain hypervisor, and took some time to explain the process of mapping out the PCI Root Complexes, so that we would be able to effectively split them between the primary and an alternate domain. In Part Two of this series we took the  information from Part One and split out […]
December 16, 2014

SPARC Logical Domains: Alternate Service Domains Part 2

In Part One of this series we went through the initial configuration of our Logical Domain hypervisor, and took some time to explain the process of mapping out the PCI Root Complexes, so that we would be able to effectively split them between the primary and an alternate domain. In Part Two (this article) we are going to take that information and split out our […]
December 15, 2014

SPARC Logical Domains: Alternate Service Domains Part 1

In this series we will be going over configuring alternate I/O and Service domains, with the goal of increasing the serviceability the SPARC T-Series servers without impacting other domains on the hypervisor.  Essentially enabling rolling maintenance without having to rely on live migration or downtime.  It is important to note, that this is not a cure-all, for example base firmware updates would still be interruptive, […]
December 9, 2014

SPARC Logical Domains: Live Migration

One of the ways that we are able to accomplish regularly scheduled maintenance is by utilizing Live Migration, with this we can migrate workloads from one physical machine to another without having service interruption.  The way that it is done with Logical Domains is much more flexible than with most other hypervisor solutions, it doesn’t require any complicated cluster setup, no management layer, so you […]
December 8, 2014

Solaris 11: Configure IP Over Infiniband Devices

In this article we will be going over the configuration of an infiniband interface with the IPoIB protocol on Solaris 11, specifically Solaris 11.2 (previous versions of Solaris 11 should work the same, however there have been changes in the ipadm and dladm commands). Identify Infiniband Datalinks First we need to identify the underlying interfaces of the infiniband interfaces.  In my case net2 and net3. […]
December 1, 2014

Adventures in ZFS: Mirrored Rpool

It always makes sense to have a mirrored rpool for your production systems, however that is not always how they are configured.  This really simple procedure is also critical. Create a Mirrored Zpool Check the existing devices to identify the one currently in use. Once we know which one is currently in use, we need to find a different one to mirror onto. Then we […]
July 9, 2014

Adventures in ZFS: Splitting a Zpool

Today we are going to go through the process of splitting a zpool.  This is not something that you will do often, but when you do it, you must be very precise and do it properly. Create Our Test Zpool First we will create a ZFS to hold our disk images. Next we will create the disk images. Finally we will create our zpool, which […]
July 1, 2014

Adventures in ZFS: Destroy A Zpool Without Importing

Recently I ran into an issue where I had a zpool that wasn’t imported in a system, and I was unable to import it due to zpool version incompatibilities.  This can happen if you are going to a older revision of Solaris or if you are crossing platforms between ZFS and OpenZFS.  This posed an interesting problem for me, as how do I destroy a […]
June 30, 2014

Adventures in ZFS: Rename a Zpool

Renaming a zpool is not as intuitive as I would expect, but it is still pretty simple.  We accomplish this through a three step process, export the zpool, import the zpool (using a new name), validate our mountpoints are how we want them (probably using the new zpool name). Now why might I want to rename it?  That is simple, perhaps it is simply for […]
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