ディスクリートトラック方式

| コメント(52) | トラックバック(0)

富士通や東芝が中心になって製品化を目指していた「ディスクリートトラック方式」のHDDが、来年には市場にでてくるようです。

新世代HDD、富士通・東芝が09年量産 録画機記憶容量、2倍に

思ったよりも製品化技術がうまくいったみたいですね。

ディスクリートトラック方式は簡単にいうと、これまで平板だった記録磁気メディアに溝を作って読み書き精度を上げることにより単位面積あたりの記録密度をあげたものです。

来年時点では3.5inch HDD で2TB程度、2.5inch で 1TB程度のものが出てくるみたいです。

しかし、このディスクリートトラック方式でなくても、現行でも 3.5inch HDD は 1TB に到達しているので、製品レベルではそれほど画期的に大容量になったということではない。
技術的進歩という意味では、昔のMRヘッドとかそれに引き続く読み書きヘッド技術の方が画期的でした。

ともあれ、このように大容量化してゆく HDD ですが、HDDレコーダのような家庭用製品に使われることを考えると、耐障害性がとても気になります。
パソコンを仕事で使っている人や、特にサーバ製品を扱っている人はそうだと思いますが、HDD は必ず壊れるという前提で物事を考えます。
その観点から言うと、HDD レコーダの HDD も必ず壊れる。そこで必要になるのが冗長構成やバックアップになるわけですが、今のところはその辺りをうまく実現している製品が出てきていません。

私が有望そうだと思っているのは、大容量ホームサーバと家庭内LANを使った自動バックアップ方式の標準化。
仕様的には DLNA があるのですが、各メーカはそれを素直に使わなくて、メーカ独自の機能を追加してしまっているので、技術者でなければなかなかマルチベンダで上手に使うことができないのです。

しかし、話を HDD レコーダに限ってしまうと、「ダビング10」やらなんやらで、そもそもバックアップを取るという発想すら制度的に制約されているので、その時点で気持ちが萎えてしまうというのも事実です。

トラックバック(0)

トラックバックURL: http://www.sawabe.jp/mt/mt-tb.cgi/217

コメント(52)

thanks for the laughs.

You made some decent points there. I looked on the internet for the topic and found most individuals will consent with your website.

I simply had to say thanks once again. I'm not certain what I would have carried out without the actual strategies documented by you on such a concern. It was actually a real intimidating issue in my view, however , observing a skilled way you treated it took me to jump for happiness. Now i am thankful for this information and trust you find out what a powerful job you happen to be getting into instructing some other people all through a web site. I am sure you've never met all of us.

Wonderful paintings! This is the kind of information that are meant to be shared across the web. Shame on Google for not positioning this submit higher! Come on over and talk over with my website . Thanks =)

As I website possessor I believe the content matter here is rattling excellent , appreciate it for your hard work. You should keep it up forever! Good Luck.

Hello! Cool post! But the website has been loading pretty slowly.

Hey! Nice post! But this website is still loading slowly.

Hello! Nice post! But the site is loading rather slowly.

Hi, Neat post. There is a problem with your web site in internet explorer, would check this IE still is the market leader and a good portion of people will miss your wonderful writing due to this problem.

It's exhausting to seek out educated people on this matter, but you sound like you realize what you're speaking about! Thanks

Glad i recently uncovered this website, Another good site is Dianabol will make sure to book mark it so i can stop by frequently.

Hey - great blog, just looking around some blogs, seems a really nice platform you are using. Im currently using Wordpress for a few of my blogs but looking to change one of them over to a platform similar to yours as a trial run. Anything in particular you would recommend about it?

If this checks out, big reps and a thanks comin your way. Looks promising as hell, though! sincerly, Kristine, template-package.com, 145 Bosepukur Purbapara, Kolkata, WB 700078, India 9748001647

nice posts and nice site

It takes much less time if youve previously built up a significant.

I thought you were going to chip in with some decisive insigth at the end there. Not leave it with we leave it to you to decide

I have been surfing online more than three hours today, yet I never found any interesting article like yours. It’s pretty worth enough for me. In my opinion, if all webmasters and bloggers made good content as you did, the internet will be much more useful than ever before.

I thought you would want to know that this site does not display right on my mobile (iphone).

Hello from the fashion industry, I really recognize the you've done in this post, it was a fantastic read. Ive been born into the industry with my parents earning a living in the fashion trade. I've realized the sector is fairly disjointed so Im at present functioning over a website to provide everybody collectively. I am grateful to come across this post.

im starting a blog and i need a way to prove the content is mine so i think when i write a post i will record it on camtasia studio, will it prove 100% it is mine?. . i dont want to pay 30 $ each post to copyright them..

Just what recreate the Thief so soon! But everything was secure there. It was decreed that a number of us might see. They're, alas, ordinarily packed up in lavender and laid away for five calendar months of the year.

Great remarkable issues here. I¡¦m very glad to see your article. Thanks so much and i am having a look forward to contact you. Will you kindly drop me a mail?

Super-Duper website! I am loving it!! Will be back later to read some more. I am taking your feeds also

LaTHFIqA Buy Valium

Great amazing issues here. I am very happy to peer your article. Thanks so much and i'm taking a look forward to contact you. Will you please drop me a e-mail?

The site content writer includes a particular natural expertise to express undeniably high-quality topics. Reads the website page is undeniably great and you'll discover without doubt many standard visitors. No wonder, while using decent content. In any circumstance, it was a joy to commit time on your website and study the fascinating content.

Wow! This can be one particular of the most useful blogs We have ever arrive across on this subject. Actually Great. I am also an expert in this topic therefore I can understand your hard work.

I am not one who was born in the possession of knowledge; I am one who is fond of antiquity, and earnest in seeking it there.plaszhlkj camaras internet plaszhlkj

I really enjoyed the site. Its nice when you read something that is not only informative but entertaining. Excellent.

Its like you read my mind! You seem to know so much about this, like you wrote the book in it or something. I think that you can do with some pics to drive the message home a little bit, but other than that, this is great blog. A fantastic read. I will definitely be back.

This is well written and useful. Will you write more stories on this?

Thank you for your time to have put these things together on this weblog. Robin and that i very much liked your ideas through the articles over certain things. I realize that you have several demands on your own timetable therefore the fact that an individual like you took as much time just like you did to help people really like us by means of this article is actually highly valued.

Thanks for sharing excellent informations. Your web-site is very cool. I am impressed by the details that you¡¦ve on this web site. It reveals how nicely you understand this subject. Bookmarked this website page, will come back for extra articles. You, my friend, ROCK! I found simply the info I already searched everywhere and just could not come across. What a great web-site.

of course like your website however you have to take a look at the spelling on quite a few of your posts. A number of them are rife with spelling issues and I find it very troublesome to inform the reality then again I¡¦ll surely come again again.

Your webpage doesn't show up correctly on my apple iphone - you might wanna try and repair that

Thank you, I've recently been looking for info about this subject for a long time and yours is the best I've discovered till now. But, what concerning the bottom line? Are you sure about the supply?

You should take part in a contest for top-of-the-line blogs on the web. I'll recommend this site!

I like the valuable info you provide in your articles. I will bookmark your blog and check again here regularly. I am quite sure I’ll learn many new stuff right here! Good luck for the next!

Hi there, Thanks a lot for this brilliant post! I will save ディスクリートトラック方式 - さわべの雑感. Many thanks.

ディスクリートトラック方式 - さわべの雑感 is an impressive share. Thank you for this writing.

Wow, awesome blog layout! How long have you been blogging for? you make blogging look easy. The overall look of your web site is excellent, let alone the content!

Iˇ¦ve recently started a blog, the info you provide on this site has helped me greatly. Thank you for all of your time & work.

I’m typically to running a blog and i really respect your content. The content has really peaks my personal interest. I am going to bookmark your web site and checking for brand spanking new info.

I proceeded to go over this web site and I believe you have a large amount of wonderful info, saved to fav (:.

Good day, I was surfing the web and that i saw your site through another site. I read a couple of your articles and thought they are amazing. Thanks, I will attempt to come back to your web page again soon.

Fantastic blog! Great!

You really make it seem really easy together with your presentation but I to find this topic to be really one thing which I think I'd by no means understand. It sort of feels too complex and extremely huge for me. I'm having a look ahead for your subsequent publish, I¡¦ll try to get the hang of it!

You really make it seem really easy together with your presentation but I find this matter to be really something which I believe I would never understand. It seems too complex and very extensive for me. I'm having a look forward on your subsequent submit, Iˇ¦ll attempt to get the dangle of it!

コメントする

2012年2月

      1 2 3 4
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29      
Creative Commons License
このブログはクリエイティブ・コモンズでライセンスされています。