Welcome to the Data Center Automation Blog, where you can read the perspectives from storage management experts. This Blog provides insights into the data center automation solution, as well as technical details about specific IBM products.
"The Majority Rules !"
In a nutshell, you have Quorum if you have the majority.
Quorum is the number of "operational" nodes in a cluster that are required to control the resources, modify the cluster definition, or perform certain cluster operations.
The main goals of quorum operations:
- identify who has the majority when a cluster is broken up into sub-clusters
- keep data consistent, especially when shared file systems are being used
- protect critical resources … maintain HA control
A Network TieBreaker is a popular configuration option for a Tivoli System Automation for Multiplatforms (TSA MP) managed environment.
But what is a TieBreaker and why is it needed ? To understand the what and why, you first need to understand the concept of "quorum" ... please see my blog titled "TSA Blog Series: High Availability Concepts - What is Quorum ?" https://www.ibm.com/developerworks/community/blogs/d6a38b59-943a-434b-a473-b408ed64847d/entry/what_is_quorum?lang=en
... in a nutshell, a... [More]
"Consolidation drives value." "Manage less and do more."
These initiatives, and many others like them, make sense from a financial standpoint, but can often lead to sleepless nights for operations managers once they realize the majority of their business, sometimes as much as 85%, is now run out of a single datacenter or a single platform. What happens when the system goes down? What happens when my datacenter loses connectivity? How quickly can I recover from an outage? Do I... [More]
Ever tried to bring a resource offline only for it to result in a state of "Stuck online" ?
A "Stuck online" situation could also prevent a move request (failover) since the first step of a move is to stop/offline all resources that are in the scope of the move.
Your first sign of a "Stuck online" situation will likely be from the output of the 'lssam' command. Here is some sample lssam output :
Stuck online... [More]
The Open Program for IBM Tivoli System Automation started.
We are developing the next version of our products:
Tivoli System Automation Application Manager (SA AppMan)
Tivoli System Automation for Multiplatforms (SA MP)
In the Open Program, we are going to
show you selected features and improvements that we intend to include in
future releases of SA AppMan and SA MP. We are looking forward to
discuss these features and improvements with you and receive your
You have the chance to... [More]
We're very close to our first Open Program Call on Tivoli System Automation Application Manager(https://ibm.biz/BdxKhQ) Main focus of this call is the new User Interface we intend to ship based on that new platform in a v3.next release. We'll post a recording on our Open Program developerWorks community (https://ibm.biz/BdxSCL)- stay tuned!
Automation with Tivoli System Automation products family in virtual environments has been presented on the GSE Power-Systems conference in Munich on 21.11.2011. Virtualization technologies play an important role in datacenters – they also provide the base for currently hot discussed “cloud” infrastructures. There is a lot of focus on virtualization technologies for distributed server platforms like zVM, VMware, System p’s Hypervisor, SUN Solaris Zones, and others. Of course, virtualization provides several benefits this presentation... [More]
With the 18.104.22.168 release of System Automation Application Manager, the capability to manage virtual guests on zEnterprise hardware has been introduced. This allows the SA Application Manager to start and stop virtual servers hosted inside the zEnterprise Ensemble. As this functionality is not only available via the graphical interfaces but also for the command line, our team developed some sample scripts, written in PERL, to show several possibilities of eezcs scripting. You can also browse our manuals for detailed description of the new... [More]
This self-paced audio-visual course provides an overview of the System Automation for z/OS 3.4 functional differences as they relate to implementation and administration. This is is the first of three courses in a set of courses that cover implementation and administration differences. The other two courses provide demonstrations and additional details on specific topics. The functional differences associated with operational commands are covered in a separate set of courses. Link: http://youtu.be/VsipoR6n52Q
In a previous blog, I talked about the importance for collecting and providing diagnostic data. For the Tivoli System Automation for Multiplatforms (TSA MP) product, this means running its automated data collection utility called "getsadata".
However, there are details about a problem situation that cannot be obtained by a tool, script, or bunch of commands. The most obvious is the problem description itself. So what does a good problem description entail ?
Well a timeline for one. Lets say Support staff have to dig into... [More]
Less then two weeks left to Pulse 2013 (March 3 - 6) the top event on Cloud, IT and Service Management in Las Vegas to share best practices with 8,000 of your peers and hear from IBM business partners and top industry analysts on the latest trends and hottest IT topics. Part of the Cloud and IT Optimization stream (http://www.ibm.com/software/tivoli/pulse/agenda/cloud.html#content) will be the Automated Operations Technical Council (AOTC). Join this track to gain the knowledge you need to protect your business and IT services through... [More]
We've created a "landing page" for a collection of support resources pertaining to the Tivoli System Automation for Multiplatforms (TSA MP) product. Think of it as the home page for your initial Support needs. Here's the direct URL :
This page is permanently linked off TSAMP's IBM Support Portal site, referred to as "Featured documents".
The landing page is actually divided into a collection of categories, each with their own home page.... [More]
If you're planning on asking IBM Support for help, more than likely there will be a minimum amount of detail they will need up front. The most obvious being details about your environment, such as platform/OS and product versions.
Now if you're needing the root cause for some event that has since pasted, then keep in mind that someone providing "remote" support will likely need historical log or trace data before they will be able to offer you anything significant.
For the Tivoli System Automation for... [More]
This IBM support webpage (http://www.ibm.com/support/docview.wss?uid=swg27024950&myns=swgtiv&mynp=OCSSRM2X&mync=R) features the documents most frequently requested by our customers, as well as other information identified by Support as valuable in helping answer questions related to IBM Tivoli System Automation for Multplatforms (TSAMP). A must read if you run System Automation on AIX, Linux, Solaris or Windows. It contains: Hot Topics Downloads and Updates Popular Technotes such as 'Checking and Adjusting... [More]