Today I
said we’d take a look at Array Architecture. This is an example of an
enterprise type array comprising of
•
Front End Processors
•
Shared Cache
•
Back End Processors
•
Disk Storage
A lot of
time these disks can be striped across the entire array, a very large number of
spindles tied together to provide a very large resource.
Quite
often on these large arrays bottlenecks will occur on the front end processor,
requests coming in will queue up there.
Performance Capacity – Array Metrics
As mentioned front end processors are typically the
first to bottleneck, below is an example showing just one day.
This is
ideal information for trending, if you picked up these processors over a period
of time you could do a trend going forward and figure out when and where
bottlenecks are likely to occur.
On Friday I’ll be looking at back end metrics. In the meantime sign up to belong to our
Community and listen to the live recording of this series http://www.metron-athene.com/_downloads/on-demand-webinars/index.asp
Dale
Feiste
Principal
Consultant
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