WD's New My Book Duo Puts 20TB On Your Desktop

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joz

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I for one don't have 20TB of porn, or pirated movies.

So who is this marketed too? $800 for 20TB is a bit ridiculous. Two 10TB WD RED drives are only ~$250-280 ea.

Do content producers need 20TB of external USB storage?
 

derekullo

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Imagine the rebuild time for a 10 terabyte drive ...

No one who wants to store 20 terabytes of data is going to use raid 0.

20 terabytes of data (10 terabytes effective) with just 2 drives in a raid 1 is also highly insecure due to the risk of a drive failing during your 37 hours best case rebuild when a drive fails

20 terabytes / 150 megabytes a second = 133,333 seconds / 60 = 2222 minutes / 60 = 37 hours

This feels like a accident waiting to happen.

A better, more safe way to get 20 terabytes would be 7 - 4 terabyte drives in a raid 6, or better yet zraid2 for the zfs inclined.

With ZFS, I would use 2 striped zraid1s consisting of 3 - 4 terabyte drives in each array, an effective raid 50, for an effective 16 terabytes.

You could add a 3rd zraid1 if you really needed over 20 terabytes or add a mirrored vdev of 2 - 4 terabyte drives for exactly 20 terabytes

Of course using 7 or even 9 drives to reach your goal is much more expensive than buying 2 - 10 terabyte drives, but that's the price you pay when you want 20 terabytes to actually be readable in 2 years.
 

Foeke

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@jessicapreston what is this ongoing posting scams. Same thing on Anandtech. Wasn't this out of fassion in 2005? It really annoys me, mainly by reminding me of those scriptkiddies who wreaked havoc on all forums without captcha. This, making money without being productive, Chinese viagra and direct links to virusses.
 

Vorador2

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@JOZ

Dunno where you found those prices, but in europe the drive is 719€ from the WD website, and a 10 Tb WD Drive is about 400€ depending on the seller

So it's actually cheaper per gigabyte, including VAT.
 

menthol1979

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Or you put 2x10TB plain drives into your PC, configure them via Storage Pool as Mirror and voila, here you go.
 

JakeWearingKhakis

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Well since most nice routers have USB ports for turning external storage into network storage this could make a decent NAS. Assuming you have your wifi configured correctly and securely.

Still, 2 10TB drives is worrisome.
 

parkerthon

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Worth noting in your overview that 0 not only lacks redundancy but also statistically multiplies your chances of data loss. One drive failure = total data loss. Jbod is essentially just lack of redundancy, but half your data could be recoverable in the event of a drive failure. I'm guessing only people interested in RAID 0 on a drive enclosure this size are seasoned video editing pro's though, and even then i question the need for that much 7200rpm scratch space.
 

ledhead11

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I agree with others about the data safety issues of these drives. In regards to what you might need that much space, well 4k video could eat that up in a moderate amount of time depending on the compression used. For those who legally rip their BD's to disk the average is 30-50GB per. Hi-res 24/32bit audio can easily average 1-2GB per 60 minutes of audio. AAA PC games are averaging 30-60GB these days. Put all that together and it's not hard to get at least to 10GB. Twenty will take a while longer but not as long as it used to. I totally agree about the safety/reliability factors though. Never put all your eggs in one basket after all.
 

extremepcs1

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"Western Digital's latest edition to the My Book Duo line of external drives boasts an impressive 20GB capacity." Is tht a typo, or are we back in 1990? ;)
 

hannibal

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20Tb is too Little for people who makes 4K films. So if you Edit high resolution films or just take high quality photos, this or bigger is the way to go.
But most likely those persons use hotswapable 6bay nas instead of these cheap ones.
 

kinggremlin

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10TB WD Red drives are selling for $380 at Newegg and other major online US shops. The lowest price it has ever been on Amazon was $365.19 back on May 18th. Where on earth are you finding 10TB Red's for $250?

$760 for two at current prices means a very under market value $40 for 2 drive external case and RAID functionality for Book Duo.
 

Isy8911

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Hey, I know that 20GB used to be a big amount, but today I think it's a typo to put "boasts an impressive 20GB capacity" as a description of this drive at the top of this article.
 

jackmeat

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well, i let this typo go, but seriously guys, this is the second time this article has popped in email notification, and this still claims 20 GB. are you guys in need of an editor? I am sure i can make some time.
 
If people didn't need this much storage these drives would not exist. Do you have any idea how much space RAW 4K footage uses for example?

30 hours of footage can fill a 10TB drive. If you are set to RAID1 that's all this 20TB drive gives you.

Not so much capacity NOW is it?
 

Ofcoursenot_1

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Good point...
 
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