Glossary entry (derived from question below)
English term or phrase:
highly clustered
English answer:
deployed mainly in clusters
Added to glossary by
Alaa Zeineldine
Dec 24, 2003 20:34
20 yrs ago
2 viewers *
English term
highly clustered
English
Tech/Engineering
We have similar decisions to make here, meaning that if my two basic hardware technologies are going to be blades and mainframe, which applications deploy optimally on blades vs. mainframes?
In this case, we provide some guidelines.
The scale-out function can be done on the mainframe through zSeries virtualization technologies
But it may be better done, in some cases, with physical blade servers.
In the latter scenario, ideal blade applications would include:
***highly clustered*** workloads environments,
does it mean "environments arranged in many clusters"?
thanks!
In this case, we provide some guidelines.
The scale-out function can be done on the mainframe through zSeries virtualization technologies
But it may be better done, in some cases, with physical blade servers.
In the latter scenario, ideal blade applications would include:
***highly clustered*** workloads environments,
does it mean "environments arranged in many clusters"?
thanks!
Responses
+4
3 hrs
Selected
deployed mainly in clusters
A cluster in this context is a specific computer server technology. It is based on connecting several servers together in such away that they appear to clients on the network as a single server. Within a cluster, the individual servers (called cluster members) can share application load, and most importantly provide high availablity (HA) in a way that is transparent to the clients connecting to the cluster. HA means that if a service (for example database server) is running on one cluster member and fails, the service is restarted on another cluster member (the term used is the application fails over to another member) and the service continues. The clients either do not notice at all, or experience a flicker in the service.
The text implies that the smaller blade servers will be deployed in clusters rather than running individually on their own. This will be an alternative to the single large mainframe for providing the scale out function.
So instead of the additional servers needed for scaling out being several mainframes, they will be several clusters, each consisting of a number of blade servers connected together internally.
HTH
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Note added at 3 hrs 56 mins (2003-12-25 00:31:17 GMT)
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BTW, examples of popular cluster technology are Microsoft Wolfpack, Linux Beowulf, Compaq TruCluster, and HP ServiceGuard.
The text implies that the smaller blade servers will be deployed in clusters rather than running individually on their own. This will be an alternative to the single large mainframe for providing the scale out function.
So instead of the additional servers needed for scaling out being several mainframes, they will be several clusters, each consisting of a number of blade servers connected together internally.
HTH
--------------------------------------------------
Note added at 3 hrs 56 mins (2003-12-25 00:31:17 GMT)
--------------------------------------------------
BTW, examples of popular cluster technology are Microsoft Wolfpack, Linux Beowulf, Compaq TruCluster, and HP ServiceGuard.
4 KudoZ points awarded for this answer.
Comment: "thanks, perfectly clear now"
+1
25 mins
No, it doesn't...
I'm no computer boffin, but even in plain English, it wouldn't mean what you suggest.
As far as I can see, 'highly clustered' MUST mean that these whatever-they-ares are not widely spread out (clearly, in a figurative, rather than literal sense), but are very much grouped together in 'clusters' --- see what I mean? Not the same as 'many clusters', but that these environments form well-defined clusters
As far as I can see, 'highly clustered' MUST mean that these whatever-they-ares are not widely spread out (clearly, in a figurative, rather than literal sense), but are very much grouped together in 'clusters' --- see what I mean? Not the same as 'many clusters', but that these environments form well-defined clusters
27 mins
arranged in many clusters (in a high density of clusters)
Yes, I would think so.
Have a look at this link it might clarify a bit more.
Small-world Networks
... Regular networks are highly clustered, ie, there is a high density of connections
between nearby nodes, but have long path lengths, ie, to go from one distant ...
www.ams.org/new-in-math/small-world.html - 7k - Cached - Similar pages
Merry Christmas!!
Grace
Have a look at this link it might clarify a bit more.
Small-world Networks
... Regular networks are highly clustered, ie, there is a high density of connections
between nearby nodes, but have long path lengths, ie, to go from one distant ...
www.ams.org/new-in-math/small-world.html - 7k - Cached - Similar pages
Merry Christmas!!
Grace
Peer comment(s):
disagree |
Refugio
: Exactly. High density of connections between nearby nodes, not 'many clusters.'
1 hr
|
agree |
Alaa Zeineldine
: Many clusters is not far from the truth here. It is as many as needed by the extent of "scaling out"
3 hrs
|
expert opinion :o)
|
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