Might want to have a look at
According to LSI, their switches can be used in failover - just connect a channel to each switch from each device and set up on the web interface on the switches.
Not sure about clustering though.
Completely understand your trepidation and preparation - Bristol is particularly 'cut throat' with school catchments and kids choosing schools.
pretty much in the same boat with the 1:1 ratio planned.
I'm putting in the 10gigabit core tomorrow - 4x A5800's (24 10GbE ports) and 2 x BNT 20 port 10GbE switches.
I would also say that 10GbE is necessary if are using virtualisation heavily - a physical server with a couple of gigabit NIC's isn't going to hold up very long if you have a few network heavy servers running on it.
Considering you are planning to future proof your set up and are expecting a lot more wireless devices to come into the network and also have 'N' standard wireless, 10GbE is a no brainer IMO. Having a solid backbone plays a key role to the full network infrastructure. As time goes on, there will be increased demands that smaller device will place on bandwidth requirements also and this needs to be factored in also.
We currently have 80 Aruba 105 N access points the system was specced to support 30 devices per classroom. Its not really been tested because that would be a lot of kit needed!
I could spend a lot of time working on this. Could any suggest south west companies who could provide the kit and recommend a solution?
Thanks for everyones comments its good to have validation
Do you really need 10Gb speeds in schools - in my opinon, no, overkill
Couple of sites I ran a few years ago with 3,000 devices+ (desktops, servers, waps, printers etc) ran pefectly fine without a 10Gb Infrastructure, I know and speak to alot of (high up!) network engineers and they all say 10Gb Infrastructure for a school (for example) is just wild! and will take a very very very long time get used to there full potential.
Last edited by IanT; 4th April 2012 at 03:23 PM.
Dont quite understand why your surprised!
Things have changed a lot in a few years though Ian, a few years ago I would have suggested dual 1GbE to be fine myself. However looking forward, with the popularity of mobile devices and increased bandwidth requirements, I don't think that multiple gigabit links will cut it. If the budget is available to upgrade to 10GbE then I would say do it while you can as it's not something that you would regret.
Some scenarios where 10GB/s will help:
1000 users all logging on for the first time to that computer with roaming profiles from 6 load-balanced RP servers with the RPs host as VMs with the VHDs on a 10Gb iscsi SAN SSDs.. then 10GB from your VM hosts to your core, and from your core to the next tier of switches will give you better through put than if you only had 1Gb links.
Software installation and large image deployments/updates. If you are transferring a large number of large files between clients and servers then 10GB/s links will make a difference. However you need to look at your server links to your SAN and you need to carefully load balance the work across your highly tuned file servers and physical disks to make any use of it.
10GB/s will also help with traditional backup and restore speeds. If you are still running traditional backups.
If you are primarily going BYOD then your load will be distributed across all your ports into your core and from there the bottleneck will be to the internet, unless you are lucky enough to have a multi-Gb/s pipe, in whihch case the chances are your bottleneck will be your proxy and firewall throughput.
When I had silly money available and worked somewhere that regularly had 30/60 students shifting multi-GB files about the LAN on an hourly basis, 10GB from core to the top of rack switches made sense.
In a school where we don't do that then the only 10GB link is between the two core switches. The servers have 4x 1Gb to the SAN and Core. This is an ORDER of MAGNITUDE cheaper than 10GB to all cabinets, and if anything performs better.
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