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Searching for sense in the NAS market

Posted on 5 Aug 2010 at 11:37

Steve Cassidy searches for rational behaviour in the NAS marketplace

No matter which Windows server I put this bad drive into, none of the clients attached to them – which in the interests of transparency I should list as a first generation Mac Pro, G4 Mac mini, HP NC4400 laptop, a Dell Precision 490, a Toshiba netbook and an Ubuntu 9 virtual machine from inside VMware vSphere 4 – displayed the calamitous crash-happy behaviour that I was seeing from exactly the same duff drive attached to an OS X server. All the bad news was contained within the RAID card’s firmware and didn’t infect the clients.

So here’s the punchline and the basic reason I want someone to lay down the law a bit more transparently in the NAS marketplace. The machine I used for my Windows-based testing is an ML115, which is pretty much HP’s bottom-end server.

When I bought mine it was a bargain: motherboard SATA RAID, a dual-core full 64-bit Opteron at 1.8GHz, and four 3.5in non-hot-swap drive slots for less than £200 in the dealer channel. Sure, this is without any useful drives but, remembering that Qnap review, most NAS boxes don’t come with drives either and NAS prices can be quite a shock, with six- and seven-drive units costing well over £1,000 (the Qnap box lists at more than £600 including VAT).

Total cost

These days, it’s practically impossible for anyone in the IT business to arrive at an unconsidered price for their product, so with NAS devices I’m not at all surprised to discover that the cost of putting together a simple Windows-based storage server is around 20% more than the cost of a mid-range NAS box.

Remember what kind of business I’m talking about here: namely, small businesses. In effect this 20% premium is just a way of expressing in cash the value to you of your previous Windows experience. Anyone who’s built a desktop PC or restored from recovery media already knows the most important bits of the process of running up a Windows machine, and hardware RAID controllers are a massive advantage in the overall machine lifecycle.

If bad drives are going to become an increasing part of the maintenance picture, I’m definitely sceptical about the wisdom of deploying any non-Windows device as a core server in a small network.

And I’m still waiting for anyone – user or staff – to answer my tech support query in the Apple customer support forums about that OS X client crash.

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User comments

Vendor brutally rational

Let me try to demonstrate why the vendors are entirely rational and continue to manipulate the laziness and fears of customers.
Consider first Windows Home Server. This product should not exist. All versions of the Windows should have, for many years now, supported a primary operating system function: to protect the data on the machine. It is a disgrace that M$ should have abandoned their attempts at a replacement for NTFS, Apple should have abandoned their attempts to use ZFS and that ORACLE have cancelled OPENSOLARIS from whence we might have had an open version of ZFS. Just as a business has what you define as 'multi-layered requirements', why would a home with 4 PC's (say) want to buy WHS on another box? I like the acronym PDTD, which I came across somewhere on the Internet, to describe the behaviour of vendors: Profit Driven Technology Decision. If you examine the storage market with this principle in mind you will see that vendors are entirely rational and offering up only those products which maximise their revenues.
Consider next HP's MediaSmart Server, the first suspect for a license of WHS. This product should not exist. It is a low-powered device with a limited set of functions, costing the same as a mid-range desktop PC. Hot-swap disk bays are a useful plus but let me ask you this: why is there no consumer desktop with 4 hot-swap disk bays? Surely the incremental cost to add hot-swap disks to any royalty OEM PC would be superior to a separate machine (down from £594 to £349 on Amazon UK) running a novel OS? Design-wise and customer-value wise it would obviously be better ... but it wouldn't be good for the vendor, so you will never see it.
Moving up the scale, and since I like to think I know 'what distinguishes big from small across different market sectors', how about an 8-bay DROBO with iSCSI: down from £1099 to £999 on Amazon UK. A grand for a limited, low-powered file server? You cannot be serious! Why didn't I buy a proper file server instead? (Forget your 20% overhead.)
I'll tell you why. Configuring up an entry level DELL T410 or T610 or T710 DELL file server (PCPRO recommended products) one can easily arrive at something to blow HP MediaSmart and DROBO out of the water. Morover the architecture includes XEON CPU and ECC memory for even greater data security. However the prices for all these products (MediaSmart, DROBO, DELL server) include but a single low capacity disk. Given that a consumer-grade 2TB disk is less than £100 how much would you expect to pay for a DELL enterprise 2TB disk? How does £540 sound? Now I know many of the differences between a consumer disk talking to a motherboard RAID chip and an enterprise disk talking to a specially designed RAID card. They do not amount to a price hike from £100 to £500+. Moreover DELL (for one) have taken deliberate steps to prevent a customer buying a server ready for someone else's disks. The DELL rebadged RAID controller will spit out 'foreigners' unceremoniously. Nor can a customer buy a cabled machine without RAID controller to insert an unbadged controller: DELL will not sell the cabling and trays without the disks. This vendor lock-in approach trades on the business manager's fear of server downtime and data loss ... many large/medium businesses are prepared to pay the vast premium, small businesses just shake their heads in disbelief. This is another reason why there is no 4-bay hot-swap consumer device: it would cannibalise enterprise sales.
The equivalent of WHS in the business sphere? Windows Storage Server. Merely another special OS which wraps up the small work of an iSCSI target.
Those not persuaded by my argument might examine Google's storage strategy: vast quantities of cheap components protected by proper engineering. For fun try explaining to a DELL account manager that Paterson et al defined the I in RAID as Inexpensive. In 1989.
It is abundantly clear to me then that vendors' have a very clear plan to exploit customers' fears and laziness ... for where is the backlash against their pitiful designs and restrictive practices?

By Jacko55 on 15 Aug 2010

Not so

There are innumerable 4-bay devices at the lower end of the market. Drobo make one; Promise are sending me one at the moment; I saw a games PC with 4 drive slots just today, and I'm fiddling with a LaCie 4BIG and a small metallic box made by Sonnet, in between domestic weekend duties. Apart from that, good comment!

By Steve_Cassidy on 15 Aug 2010

'tis too, oh voice of authority

I did not deny the existence of 4 bay devices - I mentioned one: the HP MediaSmart server. The others you quote all suffer the same problems. They are effectively 'small computers' with low rate processors and limited functions as compared to a mid-range PC, let alone a 'multi-layered' server. I understood the case for a device costing £150 with an ATOM processor saving money on electricity ... but the trend has been to increase the CPU, RAM and functions back up towards a proper computer/server!

Nor did I say there were no PC's with 4 bays ... and one can easily buy cases to construct 4,6 and 8 bay systems.

Nor did I say there are no applications or configurations where a separate detachable unit would be ideal.

What I did say was 'hot-swap disks on a royalty OEM PC would be superior to a separate machine'. Rather than pay £300 for an HP PC ... and then £300 for HP MediaSmart ... why not £400 for a consumer PC with hot-swap disks? I explained why not!!

Perhaps to complete your survey of storage products for home users and small businesses you could include a bespoke PC build (or two)?

By Jacko55 on 16 Aug 2010

Reality check

I have looked really hard at a Drobo and a 4BIG. Both seem quite unable to boot DOS, since all they have is a controller in them (no network interfaces on Drobo until you get to the "pro" range and they use a Marvell RISC CPU, shared with Apple's Time Machine). My Sonnet boxes are actually *electrical*, never mind "a PC in a box" - they just surface an eSATA port and power the drives from a tiddly PSU. On the "bespoke PC" front, I am fiddling at the moment with an HP xw5000, which has drive cages, cost me an afternoon's fiddling and some beer, and is ideal for FreeNAS.

By Steve_Cassidy on 16 Aug 2010

Yellow pill working, we see

Drobo - expensive, limited-function, crap computer.
Lacie 4Big - expensive, limited-function, crap computer.
HP MediaSmart - expensive, limited-function, crap computer + new crap OS (M$ said they couldn't develop a reliable new file system to replace NTFS - I believe them.)
Sonnet - just crap, but not expensive? You tell me.
Typical NAS offering - expensive crap. We agree on the pattern, let's move on then ...

... my semi-educated guess at the components of a bespoke, robust, consumer/small business, VALUE, file server configuration are:
1. XEON processor, simply to support ECC memory.
2. Motherboard supporting XEONs ... and at least 6 SATA disks (OK four at a pinch) ... and bonus points for eSATA, USB 3.0 and x16 graphics interfaces ( I might choose to actually use the fileserver as a workstation rather than try one of the specialised x1 graphics cards used on HTPCs, if I were a power home user or small business).
3. Case and/or accessories providing hot-swap drive bays, redundant power supplies and cooling fans, tool-free installation ... all that jazz.
4. Inexpensive RAID controller which either provides RAID 6 or blends an SSD and standard disks for vast IO performance (e.g. ADAPTEC MaxIQ). Otherwise I don't use RAID and just buy two servers for disk-to-disk backup. (Indeed if it costs me £540 for a single SATA II disc from DELL I might as well install INFINIBAND on my servers and replicate them.)
I liked the idea of OPENSOLARIS running on a XEON-based fileserver providing ZFS and a free iSCSI target. Alas poor OPENSOLARIS ... ORACLE knew you too well!
Such a heavy burden to sort all this out ... I defer to the 'voice of authority' for a series of workable solutions to suit all (small-ish) pockets.

PS free beer provided with all acceptable configurations.

By Jacko55 on 17 Aug 2010

Two more things ...

1. If you can come up with an eco-friendly solution I will compromise to a large degree.

2. If you lose a single byte of my data ... I will hunt you down.

Have a nice day ;-)

By Jacko55 on 17 Aug 2010

Thecus n5200

Mine has been working fantastically efficiently for just under 2years now.

http://www.google.co.uk/products/catalog?hl=en&cli
ent=firefox-a&hs=7nS&rls=org.mozilla:en-US:unoffic
ial&q=thecus+n5200&um=1&ie=UTF-8&cid=2796356737331
106504&ei=wVNtTM6ZBs_14AbPlNXmCg&sa=X&oi=product_c
atalog_result&ct=result&resnum=3&ved=0CCwQ8wIwAg#

I think Thecus have hit the sweet spot between high end functionality and usability with a minor learning curve.

If you experiment with DynDNS you'll have fantastic accessibility too.

By urbanaught on 19 Aug 2010

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Steve Cassidy

Steve Cassidy

Steve is a networks expert and a contributing editor to PC Pro for more years than he cares to remember. He mixes network technologies, particularly wide-area communications and thin-client computing, with human resources consultancy.

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