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Test Drives: Hitachi Ultrastar 15K450 and Deskstar 7K1000.B

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2:00 AM - 03/05/2009 by Patrick Schmid and Achim Roos

We talked to Hitachi about this project, and the firm quickly expressed an interest in supporting it. Not only did we receive four of the latest Ultrastar 15K450 server-class SAS hard drives at 450 GB each, but Hitachi also provided four Deskstar 7K1000.B desktop hard drives at 250 GB. In addition, we received a little software tool called Niagara, which allowed us to freely select the number of logical blocks that shall be used to store data. We’ll look at the test drives first, and talk about the Niagara tool, before moving on to the benchmarks.

Hitachi Ultrastar 15K450, 450 GB, SAS/300

The Ultrastar 15K450 has been around for a while. Our review of the 450 GB version was posted in August 2008, but keep in mind that the product cycles for enterprise products are longer than those in the desktop and notebook spaces. Hitachi offers 450 GB, 300 GB and 147 GB capacity points, all running at a fast 15,000 RPM spindle speed and equipped with 16 MB cache memory. The most impressive benchmark results were the 157 MB/s read and 140 MB/s write throughput. Only the latest flash SSD generation can beat this, and you will need a really fast SLC flash-based SSD to beat the 98 MB/s minimum throughput of the Ultrastar 15K450.

Clearly, this is a great drive that only fell behind the latest flash SSDs because of its access times. We had measured a 5.9 ms average access time for our initial Ultrastar 15K450 review. This time the result was 6.0 ms, which is very much the same. I don’t want to talk about all the results at this point, but short stroking allowed us to almost cut the access time in half. While this won’t be fast enough to challenge the < 0.1 ms of flash SSDs, it really makes a huge difference. Throughput also benefits from short stroking, as minimum transfer rates are actually very close to the maximum numbers.

Hitachi Deskstar 7K1000.B, 250 GB, SATA/300

We also benchmark the desktop hard drive Deskstar 7K1000.B, as large desktop hard drives are increasingly being used to take care of high-capacity requirements, even in enterprise market segments. Drive makers such as Hitachi and Seagate have been offering modified drive versions. Think of the Ultrastar A7K1000 and the Barracuda ES family line, which will soon be replaced by a new brand called Constellation. The Deskstar 7K1000.B is available at up to 1 TB capacity. We received 250 GB drives for this review, because these are extremely affordable, and so it’s cheap and simple to put six or more drives into a RAID setup. The 7K1000.B is Hitachi’s second generation terabyte drive, and while it doesn’t reach the impressive access times seen from the company's enterprise lineup, throughput and power efficiency are both excellent.

Talkback
eddieroolz 03/05/2009 8:02 AM
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-7+

You know, clicking on this article redirected me to a "Antivirus 360" popup which then said that my computer was infected. My fat ass - I have NOD32.

You guys might want to check where your ads are coming from - only matter of time until one day someone infect themselves.

cl_spdhax1 03/05/2009 8:26 AM
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i just noticed that also, running adscan and virus scan.

cangelini 03/05/2009 8:46 AM
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Not sure what you guys are experiencing. Running AVG here and no issues. But I'll report it just to make sure. Thanks for the heads-up.

philologos 03/05/2009 9:52 AM
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-9+

It's odd that you report short-stroking as a process of acceleration. I usually employ short strokes if I'm trying to delay the satisfaction of my I/O needs.

Sorry, couldn't resist.

Anonymous 03/05/2009 9:53 AM
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-7+

Interesting article.

I do wish they had a similar to for the WD's and Seagates just to see what kind of boost the higher density platters will provide and maybe you won't lose as much capacity in the process.

Another thought would be for the tool to also allow you to format the one partition for performance but still allow you to use the remaining capacity as you see fit. If I want to try and keep everything in one section I could still get the benefits but if I need to, I can use the remaining room and know that I will get a performance hit.

mitch074 03/05/2009 9:53 AM
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-15+

HOWTO - take your new hard disk drive. Create a 32 Gb partition, from the first LBA block. Format it. Don't forget to enable NCQ if it isn't enabled by default. Store your test data on said partition. Create another partition with the leftover space, where you'll store, say, backups.

Would you mind repeating your tests without using the Hitachi-specific tools, but a mere partitioning tool? 'far as I know, drives access platter sectors sequentially (platter 0 sector 0, platter 1 sector 0, etc.) thus partitioning correctly should have the same effect... That's certainly what I see with my own drives.

arkadi 03/05/2009 11:06 AM
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Well the results are logical and make sense. Cant say it a new concept, but it is nice to see it on paper.

Thesmj 03/05/2009 11:16 AM
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I got the same popup. The site it came from was "cleanyourpc-now.com".

It spawns a pretty convincing looking explorer window which appears to scan all your drives. It even makes what looks like a bubble pop up above the tray telling you viruses were found.

sbuckler 03/05/2009 11:17 AM
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--2+

It's always been known that using less of a hard disk makes it faster but that is hardly likely to make it perform on an SSD like level. HD's are done for when it comes to high throughput work.

If want to make a HD peform better then instead of emptying it and only using 10% of the capacity which is somewhat impractical use a smart defragger that puts all the frequently used data together at the fast end of the disk. That will give you most of the performance most of the time without the disadvantage of a tiny disk size.

Curnel_D 03/05/2009 11:27 AM
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cangelini :
Not sure what you guys are experiencing. Running AVG here and no issues. But I'll report it just to make sure. Thanks for the heads-up.


This didnt show up at all on my vista 64-bit that I just tried, but did show up on an older xp machine I used when I first read this article. Bad news. :( Would love to hear an explanation...

Silluete 03/05/2009 12:02 PM
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Didn't get anything here too, I using vista 32-bit but my friend using xp and got some pop up, and now he running his AVG.

Anonymous 03/05/2009 1:01 PM
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I would like to see this in comparison with a RAID of SSD's. Comparing a RAID of short stroke with a RAID of SSD's, to see how they compare... This is very interesting and intriguing information.

armistitiu 03/05/2009 1:03 PM
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Nice article. Didn't expect this kind of stuff from Tom's Hardware.

Anonymous 03/05/2009 1:13 PM
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im using xp and no popups for me. What browser are using those who get it?

wilsonkf 03/05/2009 1:39 PM
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It is expectable that dual-head harddisk is coming - one for the outermost track, one for otherwise.

Or may triple head?

Darkk 03/05/2009 1:48 PM
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I didn't get the anti-virus ad pop up. Then again I'm running Linux and Firefox 3.0+

shreeharsha 03/05/2009 1:56 PM
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No popups on Firefox 3.0.7 / Mac OS X 10.5.6

pcfxer 03/05/2009 2:23 PM
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I find it odd that they recommend the crappy onboard RAID in most motherboards...I suppose server/workstation boards have better host controllers equipped onboard.

Pei-chen 03/05/2009 2:48 PM
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I ran into the Antivirus 360 problem two days ago visiting Tom's home page; ran AVG and turned up nothing on my computer. IE7 + Vista 64

Back to topic. I think a large Raid array made up of 2.5" hybrid drives or SSD + 2.5" drives is better than an all SSD array. Most accessed data are on the SSD and less accessed on 2.5"

konchus 03/05/2009 3:26 PM
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