Unix high availability and scalability survey


 
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# 1  
Old 10-13-2010
Unix high availability and scalability survey

we're in the process of reviewing of unix infrastructure main objective is to consolidate on the less versions possible
key decision factors are scalability and high availability options given our multi-datacenter infrastructure, features like HP's continental cluster are top on our wish list based on the forum experiences, what are the relative strength of the various brands? I'll try a little list first:

RedHat Linux:
  1. + GFS for active-active clusters
  2. + runs on commodity hw
  3. - no geographic cluster
HP-UX:
  1. + great scalability from blade servers to superdome
  2. + continental cluster
  3. - itanium

Solaris:
  1. + runs even on x86 (vmware consolidation with windows/linux farms)
  2. + scalability up to M-series
does it have some form of geographically dispersed cluster?

AIX:
  1. + does it have any pluses?
  2. - IBM
is it scalable enough? how well it behaves on clustering?

Last edited by iacopet; 10-13-2010 at 04:35 AM..
# 2  
Old 10-13-2010
One of the biggest mistakes most organizations make is to base a decision purely on technology or technical details.

What is generally the most important factor is this:
  • What is the current skill base of your employees?
  • What systems are they expert in?
  • What systems are they trained it?
  • What systems do they use now?

Many companies have failed when they try to make a major technological shift that does match the skill base of their employees.

The most important factor is what the current technical team is most skilled and comfortable with, not technology.
# 3  
Old 10-13-2010
this is sound but out of scope right now
we're currently upgrading our skill set, so we can steer one direction or another based on the best technology
# 4  
Old 10-13-2010
Quote:
Originally Posted by iacopet
this is sound but out of scope right now
we're currently upgrading our skill set, so we can steer one direction or another based on the best technology
How big is your organization?

How large is your IT staff or department?

The correct "technology path" always resides in the culture of the organization, not the best technology.
# 5  
Old 10-13-2010
while these could be classified information, i can say we have multiple datacenters at more than SAN extension allowed distance, and we can count on a dozen of various skilled sysadmins
# 6  
Old 10-13-2010
Quote:
Originally Posted by iacopet
while these could be classified information, i can say we have multiple datacenters at more than SAN extension allowed distance, and we can count on a dozen of various skilled sysadmins
I doubt it... most companies publish the size of their organization and this is not considered "classified" or "confidential".

So, if you are not willing to share, we can't help you because you refuse to address the most important part of the discussion, the O&M side.

In fact, you have shared that the company is very large. This means that the most important decision is certainly not based on technology, but organization.

Furthmore, generally the "overly technical discussions" are not helpful because they distract from the most important discussion, which are the O&M discussions of existing skillsets, licenses, etc.

If are unwilling to discuss the important facts, we will close this thread, sorry. It is not possible to correctly advise you without the details, and we are not here to support "one technology is better than other" type of techie discussions (Rule #8).

This is because we have a lot of experience, and we know what is important, and what is not helpful.
# 7  
Old 10-13-2010
May I just add that it also depends on the minimum service levels that are acceptable to your business and your customers. Not every technology may enable those service levels. If you could identify requirements that are crucial, then this may allow you to ask a more specific technical question as to which solutions meet those requirements (would that be allowed Neo?)
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