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 Post subject: Hitachi HDD Deco
PostPosted: September 25th, 2018, 22:45 
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Joined: September 23rd, 2018, 18:10
Posts: 1
Location: lima, peru
Hi All

I got a bunch of this hdd from deco from Movistar, Claro companys.
I trying to use on my computer, computer detects him, i checked with HDD Sentinel, and it appears there.
But, i cant delete partition, or create new one.

I tried with MHDD but he says: Drive not ready. and something with LBA..

The drive is connected via USB, i booted with a usb stick with command.com,
So, i readed a little and, add to config.sys the driver to load usb.

But when i boot keep appears 1/2 loading device, and stuck on 2/2...

So, i take out the primary hdd from the laptop, and put this one has primary. but the laptop says that cant load or something cant remember.
So im stuck..

Can anyone guide me, step by step, any god soul?

Thanks


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 Post subject: Re: Hitachi HDD Deco
PostPosted: September 29th, 2018, 12:26 
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Joined: June 17th, 2018, 11:43
Posts: 470
Location: spain
rushwhq wrote:
SOME DVR DRIVES ARE OPTIMIZED FOR SPEED SO THEY MIGHT BE SET TO IGNOR SOME ERROR CORRECTION/CHECKINGS, ETC because on a dvr/video machine is more important to get the video saved fast even if you do loose some frames rather to have a 100% binary equal copy of the files when moving them arround.


Interesting clarification. Thanks for sharing.

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 Post subject: Re: Hitachi HDD Deco
PostPosted: September 29th, 2018, 17:43 
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Joined: September 8th, 2009, 18:21
Posts: 15526
Location: Australia
mhp666 wrote:
rushwhq wrote:
SOME DVR DRIVES ARE OPTIMIZED FOR SPEED SO THEY MIGHT BE SET TO IGNOR SOME ERROR CORRECTION/CHECKINGS, ETC because on a dvr/video machine is more important to get the video saved fast even if you do loose some frames rather to have a 100% binary equal copy of the files when moving them arround.


Interesting clarification. Thanks for sharing.

This is not strictly true.

There is an additional ATA Streaming command set which is used for reading and writing uninterrupted data. These commands are only invoked when necessary. The normal read and write commands are still present as the default. In fact the latter are mandatory because an AV drive must still be able to write error-free file system information even though the AV content may have errors.

https://www.hgst.com/sites/default/files/resources/WP_AV_25March.pdf
https://www.seagate.com/files/www-content/product-content/sv35-fam/sv35.5/en-us/docs/video-vs-desktop-mb645-1-1403us.pdf

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 Post subject: Re: Hitachi HDD Deco
PostPosted: October 12th, 2018, 16:56 
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Joined: November 22nd, 2017, 21:47
Posts: 309
Location: France
I read an article regarding that hypothetical issue about a year ago :
http://archive.techarp.com/showarticleb ... 659&pgno=4
And then an update saying that the former statements were actually wrong :
http://archive.techarp.com/showarticlef ... 826&pgno=0


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 Post subject: Re: Hitachi HDD Deco
PostPosted: October 12th, 2018, 17:09 
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Joined: June 17th, 2018, 11:43
Posts: 470
Location: spain
Thanks for the links.
They are very clear.

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