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Storage & Clustering Community Blog
Showing posts tagged with Cluster Server
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ScottK | 13 Jan 2012 | 0 comments

The last post looked at frequency of  cluster asymmetry, and what types of asymmetry (memory, CPU, etc.) are more common. To quickly recap, a third of clusters sampled showed some kind of asymmetry. Amount of memory and server models were the most common type of asymmetry. CPU speed & CPU model were the least common.

Going to the next level of detail: how asymmetric are these clusters? For example, when two cluster nodes have different amounts of memory, is the difference in memory a lot, or a little?  Server Model & CPU Model differences are hard to quantify cardinally or even ordinally, so let’s look at Memory, CPU speed, and the number of CPUs.

Each cluster in the sample is different, since they come from different customers. Using the absolute number of CPUs, or GB of memory, or MHz or speed, would be intuitive but misleading. Consider a one CPU difference within two different 2-node clusters. Cluster A (64, 65) and Cluster B (1,2) both...

bpascua | 11 Jan 2012 | 0 comments

Increasingly we hear more and more that IT departments are being expected to do more with less. This translates to more projects and initiatives that require the same levels of service that the business has come to expect with budget looking very much the same as in the previous years. This divergence is causing customers to look at new ways of making their data centers more efficient. Generally speaking IT managers don’t want to “save” money, they are after all looking to grow their business and their infrastructure and delivery capabilities. However our customers are looking at initiatives to drive their efficiency up while maintain high levels to their business.

Symantec (formerly VERITAS) is a key vendor to 99% of the fortune 500 their data centre portfolio. The broad base of solutions has meant that Symantec really can offer customers a vendor independent view of the data centre without any reliance on any particular flavour of hardware. A major new...

ScottK | 15 Dec 2011 | 0 comments

First, thanks to those who wrote me, both online and offline, about my last post on the distribution of cluster node counts. As a follow-up, here’s a look at cluster asymmetry – that is, how often a cluster’s nodes are not identical. This is a non-academic question, since we’re in the process of adding new servers to SORT’s cluster. It’s been a few years since our last hardware refresh, so our server model is no longer available, plus all newer models come with more CPU and memory than our current boxes.

So, I looked at how often we see asymmetric clusters among configurations customers have uploaded to SORT:

As shown above, a third of the clusters showed any kind of asymmetry. Memory was the most common. A careful review of the graph shows ‘Any’ is less than the sum of the other categories. In...

Ranga Rajagopalan | 12 Dec 2011 | 0 comments

Symantec is pleased to announce the General Availability of Virtual Business Services for Unix, Linux and Windows. Virtual Business Services (VBS) provides continuous high availability and reduces frequency and duration of service disruptions for multi-tier business applications running on heterogeneous OS platforms and virtualization technologies

Product Download:

VOM Virtual Business Services Availability add-on and package

Product Documentation:

Virtual Business Services – Availability User’s Guide

Mike Reynolds PMM | 03 Dec 2011 | 0 comments

If you are interested in learning about the latest Storage Foundation and High Availability 6.0 solutions from the comfort of your own desk, Symantec is hosting a virtual event on December 8th beginning at 8:00am PST.  At the event, we will discuss how Symantec is helping customers transform their existing infrastructure into a resilient private cloud, as well as providing a deeper dive on new functionality included in Storage Foundation, Veritas Cluster Server, Veritas Operations Manager, ApplicationHA and other solutions. 

At the event you will learn how Symantec is helping IT organizations: 

  • Enable high availability and disaster recovery capabilities for entire business services
  • Provide elastic storage services based on business patterns
  • Manage the entire environment from a single console

Getting the private cloud you want from the infrastructure you've got is a different approach that you...

AHerr | 23 Nov 2011 | 0 comments

The introduction of a new release of SFHA is always met with the question of what has changed in this release?

The goal of this document is to explain what has changed in the different areas of the product.

It conveniently groups the changes in the areas where they are implemented.

We have also broken out our major features introduced within this release into a section in the beginning of the document in case you are just interested in learning more about the Storage Foundation File Compression and Data Deduplication, VCS Virtual Business Services or Symantec ApplicationHA.

This document does not have information on feature implementation but does point out which document to consult for more information.

Additional product documentation is available  at https://sort.symantec.com/documents

Sanjays | 11 Nov 2011 | 0 comments

Data center leaders are constantly being bombarded with marketing blitz on how they can reach the clouds by buying new infrastructure, but the reality is closer to ground. At Symantec we believe that the private cloud is more of a transformation of your existing data center rather than a rip and replace.

Read confident insights article on how to get to private cloud:

http://www.symantec.com/business/resources/articles/article.jsp?aid=20110111_resilient_private_cloud

ScottK | 10 Nov 2011 | 2 comments

I was thinking about cluster node counts the other day, and wondering about their distribution. That is, what percentage of clusters are two node, three node, four node, and so on. There are a couple of different kinds of clusters out there -- in this context, these are tightly coupled clusters for availability (failover) or concurrent transaction clusters (like Oracle RAC, Sybase ASE Cluster Edition, or Cluster File Systems) -- not large computational clusters (like BlueGene). I ran the numbers from SORT uploads, and got the distribution. Then I wondered whether Linux might have more nodes than AIX/HP-UX/Solaris. Linux fans might say "Naturally, because it's cheaper" while detractors might think "Of course, because SMP scalability is still better on <my platform/>." One or both groups appear correct:

 

You can see the white has fewer...

Tmy_70 | 04 Nov 2011 | 5 comments

 

If you've manged to get locked out of your Veritas Cluster Server Cluster Manager, but you have root access to the server, you can reset your password using the following procedure.
 
#su - root
 
#hauser -list
admin
 
#hauser -update admin
 
If you receive the following error when running this command:
VCS WARNING V-16-1-11309 Configuration must be ReadWrite then, you need to put the configuration into ReadWrite mode.
 
#haconf -makerw
 
You should now be able to set password.
TonyGriffiths | 14 Oct 2011 | 0 comments

 https://sort.symantec.com/patch/latest

 

 

Product

Release type

Patch name

Release date

1

Veritas Operations Manager

Hot Fix

vom-HF040015980-03

2011-10-12

2

Veritas Operations Manager

Hot Fix

vom-HF040010970-16

2011-10-11

...