A Terabyte In A Cigar Box

Anonymous Howard writes "LaCie has introduced a 1 Terabyte (capacity) disk for (get this) only $1,199.00!(USD) It is external and equipped with FireWire 800, FireWire 400, iLink/DV, Hi-Speed USB 2.0 or USB 1.1 to connect to both PC and Mac. Take a look here."

Comments

wow...

[TWX]

four 250GB hard disk drives and a controller in a case for $1200... What will they think of next?

Re:wow...

[Jahf]

Worse than uninteresting, using 4 drives cuts your MTBF down by a HUGE amount.

Let's say that the MTBF for each of the drives they are using is 500,000 hours/drive (which is what is rated for the Maxtor Diamondmax16 ... I have no idea if that is the drive they used) . That means you averaged 2 failures for every million hours a hard drive is run (more on that later). The MTBF being 1,000,000 / 2.

If you have 4 drives, you have an average of 8 failures in 1,000,000 hours. That is 1,000,000/8 = 125,000 hours average MTBF.

Note that that doesn't include failure rates for any of the other components including the enclosure (physical USB port, etc).

BTW, how can a hard drive last 500,000 hours? Easy. Sell 100,000 hard drives. Run them for 10 hours. See how many fail.

What's that? You've had MANY hard drives die on you in the past and there is no way that ANY of them ran 500,000 hours (that's only 57 years)? How many of them were past there warranty? Did you report the failure back to the company? Remember the 1 out of 10 rule ... only 1 out of 10 people who experience a product problem will actual report it to the manufacturer. The rest just switch brands or replace with the same brand.

That fits with my experience in the last few years, I am lucky to average 50,000 (1/10th of the supposed norm under these assumptions) hours on a drive before death. That is assuming I have an average life of 4 years on a drive. I have a few drives that have -never- died, but in general I have to replace the inexpensive IDE drives in various machines every approximately 7 years on average (meaning some last only a few months and others have run for over 5 years before being upgraded into obsolescence which I will count as a "0" for # of failures).

That would put the average "real" MTBF at 12,500 hours. That's less than 18 months. Combine that with the horrible time for backing up such a box, the overhead of running over USB/Firewire (which in turn runs over PCI instead of attaching directly to PCI) along with the flakiness that alot of USB/Firewire devices have, and you have a LOT of reasons to spend extra money to build it yourself.

I would much rather buy a case with a low-end CPU, room for more than 4 drives, and build a RAID system with a hot-spare or two. Cost more? Yeah ... in the short term.

Missing bytes growing fast

[Humba]

The bytes lost to marketing(1024*1024*1024*1024 = 1,099,511,627,776 bytes) vs 1,000,000,000,000 bytes are 3x larger than the drive on the machine I'm using right now.

I know this is "just the way" drives are measured, but all those missing 24 bytes are really starting to add up. --H

proprietary controller

[lukior]

My fear would be that the proprietary controller would go bad and then you would lose all the data you had stored. I bought a sancube that was a raid array in a box and lost data when it went down. They repaired it but that took two weeks. Those were two weeks I didn't have. When I got it back I removed any data that was still useful removed the drives and threw away the box. I just couldnt risk any more problems.

Hey Epson,

[teamhasnoi]

look at Lacie! They actually INCLUDE all the cables for all the interfaces.

Of course, for a grand and some change, this thing better make the bed the next morning, you follow...

$1/GB

[Saeger]

1 Terabyte (capacity) disk for (get this) only $1,199.00!(USD)

What's so amazing about that? HD space has been under one dollar per gigabyte for a few years now. Add the cost of RAID and it's still under a buck a gig.

--

Re:Sorry..

[Frymaster]

You've got four 250 gig hard drives packed into the smallest space they could. Scary.

espescially when you consider that the size will make this a "portable" drive. the jostle-n-drop action can wear drives already... very bad.

Re:Sorry..

[elmegil]

Don't think this is the wave of the future.

Because after all, we haven't been doing RAID for a long time now. Oh wait, doesn't RAID mean Redundant Array of Inexpensive Disks?

Come on, it certainly has its reliability concerns, but if you mirror one to another, where's the difference between this and two racks of smaller disks? Seems to me that 4 points of failure on each side of the mirror rather than a dozen or two could actually HELP reliability.

Re:Slow interface = bottleneck

[timeOday]

Doesn't seem so bad to me, a nice new Barracuda drive will get you from 32-58 million bytes per second, which is right in the range of firewire/USB speeds. With FireWire 800 you'd hardly lose any performance at all; with USB 2 the time to back up your entire drive might be about 30% longer than to another internal drive.

I do think this product would be a lot better with built-in RAID though.

Re:RAID and what happens if a drive in it goes bad

[iiioxx]

I personally would not feel comfortable with this device. They make no mention of how your data is protected if one of the drives in it goes bad.

Your data isn't any more protected on this drive than on any other hard drive.

With this device you probably have to send everything back to them to fix with no guarantee of data preservation.

Just like any other hard drive.

Even though this device "looks cool" I'll stick to the RAID system that I built in my fileserver at home. It holds almost as much data, costs less, and if something in it breaks I can fix it quickly without any loss of data.

A RAID array is not a backup solution. It's a fault tolerance solution. There are several scenarios where you could lose everything on even a RAID5 array (controller failure, multiple disk failure, etc). So your ability to "fix it quickly without any loss of data" is by no means certain.

But, I think you are missing a major point here: unlike your fileserver-based RAID array, this drive is small, quiet, and portable.

I currently have a bigass fileserver at home in a big, loud, power-sucking server case with 8 case fans and dual power supplies (and it sounds like a jet engine). It houses my video library (among other roles) on a 400GB RAID5 array built from six 80GB drives in hotswap drive cages connected to a Promise SX6000 controller. It was relatively cheap, it holds a lot of stuff, and I can replace faulty components off the shelf. It's great. Except for the noise and power requirements of having to house the thing in a big server.

I'm looking at this LaCie 1TB drive as a way to scale down my server to a desktop case just big enough to hold two mirrored system disks, a CD drive, and a DAT drive. The rest of my storage would be in external, self-contained drives.

As for backups, I backup my system disks (where the home directories live) nightly to DAT, but the data in my library (like most) is write once, ready many. I back up my data to DVD before it gets stored on the array, rendering periodic backups unnecessary. If the disk crashes and dies, no big deal. I just have to endure a few hours (days) of restoring files from DVD archives.

And in the event that my home catches fire, I can grab an external drive on the way out the door. Try that with a 100lb server.