User:Robert Brockway
From Sysadmin
Originally from Australia, Robert has worked as a professional system administrator and solutions architect in Australia and North America. He has more than 15 years experience and has worked in permanent and contract roles, for government, at universities and in large and small businesses.
Robert specialises in Unix, networking and security and solutions architecture and is keen to see system administration develop as a profession.
Robert is happily married with one beautiful and very smart little girl.
His favourite books are:
His favourite movies include:
Contents |
IRC
Robert is active on the OFTC and Freenode IRC networks as Solver. Despite the fact that he spends most of his time on irc solving problems the nick does not originate in solving.
Talks
This is a quick list of talks I've done or are preparing:
Backups & Disaster Recovery
The talk can be found here
Classless Inter-Domain Routing (CIDR)
Done but not available online yet
Secure Shell
Done but not available online yet
Network Theory & Practice
Several planned talks which will incorporate the CIDR talk
Introduction to Open Source
Primarily aimed at those know little or nothing about OSS and done from a business perspective. It will cover methods to make money out of OSS and briefly go over different OSS licences.
High Availability
Discussion of high availability, clustering, scalability, redundancy, etc.
Youtube
Some of my daughter's favourite Youtube videos:
Notes
I just read this article. I wish I could reply to the author as it has a number of logicla faults. I'll put them here until I can find a better place.
Figure 1
Figure 1, while apparently true is misleading in two ways:
- The reason that the SAN curve is approaching the linear DAS line is because of the high initial expenditure for the SAN (the article itself lists some of these expenses). This effectively means that continued purchasing doesn't save money - it only partly offsets the earlier large expenditure. This breaks down to "spend more to improve efficiency of the previous large purchase".
- The cost of the SAN storage will asymptotically approach the cost of the DAS storage. This is true because both SAN & DAS may use the same types of HDDs.
It is also worth noting that the principal disadvantage of DAS described in the article evaporates if a distributed (as distinct from a network or clustering) filesystem is used. There are now many such filesystems available for many operating systems.
