Showing posts with label Microsoft. Show all posts
Showing posts with label Microsoft. Show all posts

Wednesday, 11 January 2017

Considering BYOD/Devices - Read this list

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I thought about a new post regarding IT Schemes and BYOD.  The idea behind this is to keep it short, simple and to the point.

I’ve created plenty of posts/pages about this and if you have the time they are all linked at the bottom.

So bullet points away:
  • ·         Depending what scheme you offer – research, test and research some more.
  • ·         Visit Schools and push hard for the bad points (like it or not, many Schools will not want bad press and potentially can lie – I know).  It’s important to remember this part, every School does it and rarely fully admits the negative side.
  • ·         If choosing tablets – remember they do not do everything a Mac or a PC can do.
  • ·         An Apple device can’t do everything a Windows PC can.
  • ·         Android v Apple tablets – There are differences but depends what you want to do exactly.
  • ·         List what you want before you make a device choice.
  • ·         Free does not mean – good.  Nor does it mean support is available.
  • ·         Tablet Apps although more reliable – when problems occur you’re alone.
  • ·         Companies may lie and tell you “we support devices” – triple check (no joke).
  • ·         Companies will say yes to sell you their product, take what they say with a pinch of salt.
  • ·         Provide devices with staff which match in size, spec and type to what Students will use – to test and test some more.
  • ·         Size makes a difference when browsing the internet especially with interactive websites.
  • ·         Browsers make a difference, what works in Internet Explorer or Firefox may not work in Safari or Google Chrome.
  • ·         This is a big undertaking and requires a lot of people to be involved.  This requires senior leadership/teachers direct involvement.
  • ·         The scheme leader should be a person of power, this becomes fundamental to your curriculum which impacts teaching and learning.  Grades/Ofsted!
  • ·         Keep it consistent, it must work and remember to evaluate the status of the scheme often to improve.
  • ·         This is very different to having a device at home that the everyday user has for 30 minutes a day.  This is a device that could be used all day or for a couple of hours.  Everything must work and be straight forward.
  • ·         Consider the real reasons you are doing this Scheme, scrutinise it heavily and make sure it’s the right decision.  Question yourself if this is about self-ambition or about children’s learning.
  • ·         The Students will download games etc., urge them not to – that these are devices for learning.
  • ·         You may not be able to deploy what you want easily and quickly, educate Staff to know how to get 25 students installing software, updates or Apps.
  • ·         Windows devices will require windows updates and restarts/reboots often.  They are not designed to be on standby all day every day like a tablet.
  • ·         Plan, plan and plan some more exactly what software will be used.  Usually 3 months later someone asks “can this go on all devices” – most of the time the answer will be no.  Who sits the Students down to install this software?
  • ·         Avoid the Apple Lover, the Salesman, the Rep – These people will say anything to get you to say YES.
  • ·         Some Students are not going to be as “advanced” as you think.  They may be able to do difficult tasks while still ignoring the simple ones.  Don’t take anything for granted.
  • ·         Involve everyone, work together and listen to each other.  If you have to delay a scheme by a year – do it.

Support levels to remember:
  • ·         Teachers/Support staff will need to know how to use, support and do day to day tasks on these devices.
  • ·         IT Support will need to know how to trouble shoot and support.
  • ·         A bigger range of devices creates less consistency especially regarding support from all staff.
  • ·         Ask who supports what:  Who teaches a Student to use word, internet, printing, email etc.  Who supports a broken device.
Security:
  • ·         Not every device will have the same security options.
  • ·         Web filtering at School is important.
  • ·         Wi-Fi security is important.
  • ·         Create a separate VLAN>SSID for Student Wi-Fi (This one is for the IT tech team).
  • ·         Educate Students, Parents and Staff to keep safe (you will need refresh sessions often).
Failures, damages or forgotten – The plan B or What IFs:
  • ·         Have a plan B in the event of failures/damages.
  • ·         Any forgotten devices should be marked down similar to missing uniform.
  • ·         Insurance is a high recommendation – damages happen.  Also make sure what is covered – device parts not affecting usage may not be protected.
  • ·         Make sure you have extra strong cases, bags that offer the ultimate protection – no joke.
  • ·         Extended warranties is a must.  Failures occur and with devices going from A to B all day – this increases failure rate.
  • ·         What happens when 25 Students arrive without 25 devices, what if it’s 20 or even 15 devices.  Ask these questions for the What Ifs.
The Cloud options:
  • ·         If you go Cloud > Google, Drive, Apps etc. – Remember it WILL impact broadband (ignore those who say it won’t).
  • ·         Apps at times will not work unless they are updated, sometimes they can also stop working – They’re not 100% reliable.
  • ·         It’s good but how reliable has your internet access been in the last 12 months.  When it goes down, you potentially can lose more.
  • ·         Your IT team can’t fix the Cloud.  When Google goes down it goes down regardless of the screaming you’re doing.
  • ·         Google Drive/Gmail is pretty good so give it a real shot but some of it is out of the Schools power/control.  It’s free though.
Set out a clear structure of what is expected of everyone and make sure it is followed.  A Scheme can work but anyone who claims it’s not a mission is not being honest.
Always picture yourself with a full class of students, consider the potential risks and problems.  Do not assume it will be smooth sailing.

Read all the blogs and articles you can but look for the finer details.  A lot of posts will not include questions regarding repairs, problems and the day to day issues you can have.  These are usually because it’s an outside blog not someone who actually works on the Scheme.  Find people who are experienced of working directly with BYOD and mobile devices.  Unfortunately I don’t find many of these blogs or even articles.  Instead I find links to School websites that offer BYOD but as we all know they will not openly tell you the dark side of devices.

Final piece of advice – Listen to the pragmatics.  They ask the questions you should.  If mistakes are made and the schemes struggle - the Students are the ones that lose out.

Time for those LINKS and more LINKS.  Theses are all done by my self with quite a bit linked from other websites.

This post is roughly about the cost of "Free of IT" Schools.

Articles that seem to reap a lot of praise on technology in Schools yet show little to no experience of being involved.

Want to buy a device for your self?

The questions or perhaps answers Education never asks or wants to know?

The costs of IT, some times no one really truly sees it.

A simple update on our current status.

Using phones or perhaps mobile devices in the classroom.  Remember safety is paramount no matter what some say.

Education, EduTech - It's all every where but has to be done right.  Very useful for BYOD/Mobile devices.

What is Cloud, can it be a benefit?

Mainly covering how much of a nightmare it can be, current issues faced and generally will open your eyes.  This also states progress of a company that provided a Scheme that effectively left us on our own.


Wednesday, 11 May 2016

System from Scratch

An interesting thing I saw the other day - What if I could start a system from scratch.  I will do this post over time - making updates as I go.




I've already covered Cloud so for the moment I will leave that out (minus the Office 365 for the software to all users).


We have a dozen or so servers, ranging from Finance, software, SIMs.net and the DNS/DHCP and DCs.


So server spec - I wouldn't hold back.


DELL - only my preference, I know them, they work, easy to customise and I've had no issues.
www.dell.co.uk


What do I need? Dell Rack Mount PowerEdge -Premiums (personally I would dream of blade)
  • Virtualisation - Hyper-V
  • Memory
  • More than one Processor
  • Space, Space and more Space
  • Room to add more
  • Separate main DC (used to be called Primary Controller)
  • Rack Mounts
So a simple DC server, with a bit of redundancy so any failures the server would continue to run.  This could be setup with a simple RAID to mirror two drives, more than one PSU, spare RAM and perhaps even two processors.  No matter what this little one wouldn't cost too much and would effectively be online doing a simple task 24/7.


Virtual Servers, Going for three of these to improve flexibility, redundancy and reliability.  Ever heard the term for all your eggs in a basket?  The dream would be 5 or even 6 physical boxes with DFS replication between the servers including exchange.  Even in Education, the reliance on IT is very heavy and although failures don't cost millions it instead impacts on Education.  We all see the fines given to Parents who take their kids for one day holidays, the detentions given for lateness or 5 minute lesson wastage - IT is no different.


So in this scenario I will look at three physical boxes.  The primary role on one server will be exchange, the second will be DATA and the third will be SIMs/Finance and any SQLs/Imaging.


This gives an off balance for any data transfers and also allows each physical box to have extra virtual servers based on the performance of each one.


So let's look at the Spec:
  • PowerEdge R730, TPM.
  • Up to 16 2.5" Hard Drives.
  • Xeon E5-2643 v3.3.
  • Upgraded to two processors.
  • 2 CPU with GPU.
  • 8x8 GB RDIMM.
  • No OS (we always install ours and purchase our own licenses).
  • RAID 5 (usually my preference).
  • RAID controller 2GB NV cache.
  • 16x 400GB Solid State (I would normally go for 15K RPM 600GB) - but same price !.
  • iDRAC Enterprise.
  • QLogic 57800 2x10GB.
  • Additional Network Card (QLOGIC).
Don't forget a good UPS for your server solutions. 


Estimated cost for the above is around £20,000 which is about right for a really good server, three of those totally around £60,000.  Considering how much Schools spend on servers over 10-15 Years this is a really good path.
If money wasn't an option, I would consider a high processor choice, likewise for the Solid State to high GB or even TB and more RAM.


How would I setup these Servers?


Small Server:
  • Primary DC
  • Primary DNS
  • Primary DHCP
Virtual Server number 1:
  • Secondary DC
  • Secondary DNS
  • Secondary DHCP
  • Primary Data Storage
  • Extra Server
  • Extra Server
Virtual Server number 2:
  • Exchange
  • DNS
  • DHCP
  • Software
  • Extra Server
  • Extra Server
Virtual server number 3:
  • SIMs Server
  • Finance
  • Imaging
  • Secondary Data Storage
  • CCTV Server
  • Extra Server
  • Extra Server
  • Extra Server
Although this is all based on performance levels, Exchange has a habit of being a memory hungry system.  Our primary data storage has a habit of being very space hungry.


I would even be able to increase each Virtual Server to have more VMs, I'd also like to develop a system to allow Labs for Students studying ICT.


DFS Replication, all based on performance and space requirements but I would consider this in the above 3 Servers.  Although I will admit this is a little overkill but remember I base this on IT reliance of my current job and experience.  I have never worked at a place that didn't rely on IT, it had to work and couldn't be down for a few minutes.  Students work is 75% electronically stored, 98% of Staff work is also stored on the system.  Everyone uses email and records mail dating back 10 Years.  One member of Staff has a mailbox of 25GB. 


Do not underestimate servers, reliance on IT or the future.  It's better to go overkill than finding out in 2 years time you don't have enough.  This server setup should be enough to last you 10 Years with minimal replacements starting 5-7 Years.  Fingers crossed you wouldn't need any heavy expenditure over that 10 Year period.  Technically, depending on IT developments it could even last more - or by that time Cloud would have improved enough to seriously consider.


You may not agree, but by all means let me know what you think.