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Re: [Xen-users] Xen as a job skill.

Thank you.
On Thu, 11/24/16, Simon Hobson <linux@xxxxxxxxxxxxxxxx> wrote:

 Subject: Re: [Xen-users] Xen as a job skill.
 To: "xen-users@xxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxx>
 Date: Thursday, November 24, 2016, 2:30 AM
 Jason Long <hack3rcon@xxxxxxxxx>
 > Ah :(
 > Why for others exist?
 Sorry but I've no idea what you are asking
 > What does " Virtualization
 engineering" mean?
 assume it's fancy speak for someone who works with
 virtualisation technologies
 The thing is, unless it's a very large
 business, it won't have people who "just" work
 with (eg) Xen. Very big organisations may be able to justify
 such specialisation, but most businesses require people to
 handle more than one area.
 Myself, I'm
 more or less the one person in the business dealing with
 GNU/Linux and related software. So as well as knowing enough
 about Xen to be able to administer the hosts, I also need to
 know enough about general Linux issues to deal with the
 hosts and the virtualised machines - and I need to know
 enough about the software packages (eg Apache and Postfix to
 name but two) in order to manage the services those virtual
 machines provide, and a chunk of programming (eg Bash) to
 glue stuff together.
 bigger the business (in terms of the amount of tech employed
 and the number of people employed doing it), the more people
 can specialise. So here, I also manage the network - so I am
 also responsible for the network switches, routers,
 firewall, ... That means I can create a new host, assign
 it's IP, add it to DNS, do any routing that's
 needed, sort out any firewall changes needed, and so on.
 I did have an informal chat
 with someone looking for people for his team at a hosting
 company. There, his team do nothing but look after GNU/Linux
 systems - they don't (and can't) touch firewalls or
 routers which are handled by a different team, and they
 don't have anything to do with Windows servers which are
 also handled by another team.
 Get to an even
 bigger outfit, and the networking is split - different teams
 handle different bits of the network. So for example, if you
 get a leased line internet connection then there'll be a
 team responsible for getting the physical fibre into the
 building, another team responsible for terminating it,
 another team will put some equipment (router) on the end of
 the fibre, another team will have been responsible for
 allocating your IP address space, another team for setting
 up the routing to get your IPs to your connection, and
 another team will have been responsible for actually
 configuring the router - all held together by a project
 manager and various other systems to make sure they record
 who has what and make sure that you get billed.
 So again, unless it's a
 very big business, I don't think you'll find people
 looking for "just" Xen - and in that case, they
 may well be looking for a very in depth standard of
 knowledge. More likely they will be looking for "Linux
 admins" with a range of skills - someone who can
 administer a system, INCLUDING the Xen specific aspects.
 That's not saying that knowing Xen won't get you a
 job - just that "only" knowing Xen probably
 won't, as most jobs will need a knowledge across a range
 of other admin skills. And that *not* knowing Xen may well
 lock you out of jobs where that is an essential part of the
 skills asked for.
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