Understanding the capabilities of a NAS

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Hi guys, hopefully this is the right section, it was a coin toss between here and storage!

I work in a school, as a Media teacher to be precise. As we have a couple of dozen students who shoot and upload footage and photos in RAW our storage needs very much outstrip the facilities provided to us by the school. As a solution the school provided us with an ethernet 2tb HDD which provides enough capacity but obviously offers no failure protection, user management or backup system, (every student can access the entire drive, i'm just waiting for one to hit delete!). We also have the issue that when uploading uncompressed 1080i footage it completely brings the drive to a standstill when other students need to access it too.

This has led me to suggest purchasing a NAS for ourselves as my limited knowledge leads me to believe that it will give us better data security and better management of users. A 4-drive NAS would hopefully offer us much better speed to due to being able to use RAID.

In terms of budget, we are relatively limited due to being, well, a school. We figured we could afford up to roughly £600. This led me to the below NAS:

http://www.overclockers.co.uk/showproduct.php?prodid=NW-012-QN&groupid=46&catid=2125&subcat=

This plus 4 1tb drives would bring us roughly in line with the budget we've laid out. Will this offer what we need? Speed is priority, but the ability to protect folders with user accounts, data security and ideally (but as the lowest priority) a means of backing up the data incase of accidental deletions is what we need.

Am i right in thinkin Raid-5 would be the best thing to run it in with 4 drives?

Would this be a step in the right direction from a single ethernet hard drive, or am i barking up the wrong tree? Should i be looking into something else?
 
that would be fine, but what is the school's policy for connecting network devices? You can do many things with that NAS but the hard work is down to you to provide policies for users etc. RAID 5 is *probably* what I'd go for, but I'm sure somebody else will have a different take on this...
 
that would be fine, but what is the school's policy for connecting network devices? You can do many things with that NAS but the hard work is down to you to provide policies for users etc. RAID 5 is *probably* what I'd go for, but I'm sure somebody else will have a different take on this...

Thanks for the reply.

The policy is... well non existant really. We just generally ask and are told yes or no. I am happy to do the leg work to configure the NAS itself, in fact i'd actually regard that as a benefit of using it rather than a drawback. The support guys at the school don't generally have the fastest turnaround for sorting out network issues and they rarely get it right the first time (usually we have to explain how we want things done several times before it actually happens that way), i'm confident i'll be able to maintain it myself.

As far as i can tell (which isn't much, having never used raid before) its between Raid 4 and 5. I'll likely go for 5 as there will be a lot of data being written to it and iirc 4 has bottlenecking issues that would slow it down.
 
yeah and you don't lose a whole disk to parity...
In this case, i'd say go for it, you'll be surprised how much a NAS can do these days, and if it's got a port to the t'internet somewhere, you and students can upload from anywhere that has a internet connection if you so wish
 
Would something like a Synology DS212 and two 3tb drives in Raid 1 not suffice? Although I don't know how much storage you need. Would come to £500. Great support online, great apps etc and DSM 4 is mega easy to use. Very fast enclosure too. I would then use the 2tb hdd you already have as a backup of the nas.
 
4x1TB in raid 10 would give good read/write speed.

I have 4x1.5TB in raid 10 with 5400rpm eco drives and get 150MB/s read/write
 
I still think a DS212+, in raid 1 will provide sufficient performance 110/90. I think a DS212+ over a DS212 would be the way forwards as the extra ram/cpu bump would help it handle users accessing concurrently better.

Two 3tb drives gives just under 3tb space, this enough? Bare in mind a formatted hD and the install of the os uses a chunk of space.
 
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The problem could be that it's connecting into the network at 100mbp/s instead of 1gbp/s, makes a massive difference.

I've got some Seagate Nas 110 2tb drives that are on the network, and when used are good, and have good throughput, but more than 5 people writing to them does slow them down massively.

What drive did you get bought?

If it's coursework for the students, I have to insist that you try and get it backed up onto the schools backup solution as well. This is speaking as I'm a network manager for a school, and yes have lost coursework due to staff not saving it on the servers thinking that it would be backed up from their own usb hard drive.
 
As viper has mentioned. Whichever route you go absolutely make sure that everything is backed up. Incremental ones each night. I would also encourage students to keep copies of everything. Especially if is coursework.
 
Hi guys, sorry ive had a couple of busy days so haven't had a chance to post back. We're still considering our options.

Backup wise, apparently getting our drive backed up isn't an option as we use too much space. This is surprising to me as the school recently forked out a rather sizable chunk of cash for a new storage solution and backup system.

My head of faculty said he would rather spend a little extra and future proof the solution we buy. So whilst 2x3tb in Raid 1 is certainly the most cost effective way of solving our problem, a 4-drive NAS with 4x1tb, thus allowing for future expansion, might be the best option.

I'm certain i will go for a Synology one now though after looking at their community support.
 
If there's now room in the budget.

Synology DS411 and 4x2tb HD's. Comes to about £750. Or just get 3 dirves for now and stick the fourth in when space runs out!
 
??

Ds411 =£219.98
2TB drives = £95-£107 each

Please trust me details of where you can find the DS411 for that price so I can buy a trunk load. ARe you thinking of the DS411J or perhaps a qnap rival. Or maybe second hand? Or perhaps vat free, though that still wouldnt equal £220

Everywhere I can find the DS411 is going for £350. Quiate right on the hd prices though. Thus rough estimate would be £750 as mentioned. However if DMSIMS can enlighten us then potentially you could get the cost down another hundred pound.
 
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