Newer-Latest Technology of Hard Discs

lifedeath · Post by **lifedeath** » Tue Oct 25, 2005 5:17 pm

I am looking for a site that has the above.
Latest to the market Hard Discs and their properties(capacity, speed etc) in collumns that spots the differences.

I paid a visit to some stores, but i was wondering if you had something good to check into...e?
Do you?

edge · Post by **edge** » Tue Oct 25, 2005 5:25 pm

Well, I'm not sure if you're looking for reviews, articles, or just a good store, but check out http://www.newegg.com

One of the best online stores out there. Ofcourse, this is a US store so all of the prices are in USD (Not sure if that matters to you or not).

KaymeeraUnleashed · Post by **KaymeeraUnleashed** » Tue Oct 25, 2005 5:35 pm

There isn't that much to it:

-There are IDE, SATA and SCSI drives
IDE are supported by all computers built after 1985?
SATA are supported by most computers built after 2000?
SCSI are generally supported by servers only, and require adapters to be supported on standard desktops

-There are 4200rpm, 5400rpm, 7200rpm, 10000rpm(SATA+SCSI only) and 15000rpm(SCSI only) - larger number = faster drive

-There are caches from 128KB -> 16MB - larger number = faster drive

-There are sizes ranging from 3GB - 500GB - larger number = more space

-There are three main brands, Western Digital, Maxtor and Seagate
The difference between them concern the operating volume sound of the disk and the lifetime of the disk - each which differs considerably with the model of disk bought - despite what the label says - and like ATi and nVidia, each have their supporters...

lifedeath · Post by **lifedeath** » Tue Oct 25, 2005 5:35 pm

It's actually a small "very small" actually, essay. The proffessor wants us to find the latest Hard Discs and "differ" them. Actually i don't know, what the heck he wants, i just need some 10-20 HArd discs with their thingies. But the thing that stricts my mind is that it asks "latest technology" Hard discs.

I went to newegg, great site, but i can't seem to find the newer hard discks. (I could try to just find the 400 and 500 gigabites, but i am not sure those are the latest.)

adciv · Post by **adciv** » Tue Oct 25, 2005 5:39 pm

Can you post the exact text of the homework assignment here? If so, that could help us figure out exactly what the prof wants.

I'm also guessing that you aren't a computer person from the way you phrase the questions.

lifedeath · Post by **lifedeath** » Tue Oct 25, 2005 5:54 pm

I'm also guessing that you aren't a computer person from the way you phrase the questions.

I am, i'm just in a hurry.

"1)By using different sources (articles, the internet etc) make a search of the latest technologic Hard Drives. Becareful to pay attention to the Capacity, Size block(?), Speed rate etc, as well as the price Euro/MB."

I am translating but i think i wrote that correctly. I thought to find the latest hard discs and just "stick" them next to each other. So a site with one-disc-vs-another-disc would be the best thing.
What do you think he actually needs?

adciv · Post by **adciv** » Tue Oct 25, 2005 6:12 pm

It sounds like he wants a general comparison chart of different hard drives.

I'm not sure what "Size block" is. However, there is something called a block on a Hard Drive. It also goes by the name of a "sector". It is either 512 or 1024 bytes. I haven't come across any that are 1024 bytes before, generally they are all 512 bytes in size.

I guess the easiest way is to find online computer stores, look through what they are selling and pick out the latest hard drives, and use those for this. Most stores list complete specifications online, with the exception of block size.

All drives listed in these shops will probably qualify as the latest technology. I think your professor doesn't want you choosing hard drives that are several years old.

http://www.cdw.com/shop/search/results.aspx?grp=HDI
http://www.misco.co.uk/categories/~1408 ... Drives.htm
http://www.newegg.com

*edit* You can also look at this site to get some reviews on the products. They test when the equipment comes out, so you can use it to find any drives that are recent.
http://www.tomshardware.com/storage/index.html

MasteR · Post by **MasteR** » Tue Oct 25, 2005 6:35 pm

The block size varies with the file system, not the hard disk.

adciv · Post by **adciv** » Tue Oct 25, 2005 6:37 pm

[quote="MasteR";p="555770"]The block size varies with the file system, not the hard disk.[/quote]

It depends on which "block" we are using. In the file system, there is an "allocation unit size". In the hard drive itself, there are "Sectors". Since the proffesor is asking about drives themselves, I am guess the second deffinition.

MasteR · Post by **MasteR** » Tue Oct 25, 2005 6:43 pm

[quote="adciv";p="555771"][quote="MasteR";p="555770"]The block size varies with the file system, not the hard disk.[/quote]

It depends on which "block" we are using. In the file system, there is an "allocation unit size". In the hard drive itself, there are "Sectors". Since the proffesor is asking about drives themselves, I am guess the second deffinition.[/quote]

A sector is a sector, not a block. I have never heard anyone refer to a sector and use the word block. Block has always been a filesystem thing to me.

But that's just me.

KaymeeraUnleashed · Post by **KaymeeraUnleashed** » Tue Oct 25, 2005 6:46 pm

I think by size-block she means cache...

edge · Post by **edge** » Tue Oct 25, 2005 8:09 pm

I suspect that's what she's looking for as "block", as an actual block is filesystem specific, not drive specific. Cache is drive specific.

It sounds like you are looking at comparing newer technology to older...
So you'd then be talking about:
SATA
IDE ATA66/100/133
SCSI

SATA (Serial ATA) being the newest
And IDE and SCSI being the older

The actual size doesn't really have a whole lot to do with the age of the technology behind controlling the disk (SATA, IDE, etc), as it does with how the platters are physically made, and the capabilities of the HDD controller to read drives of large sizes.

For example, you can have IDE drives just as large as SATA drives, although since the speed at which the motherboard can communicate with the drive, it may be ATA133, or 100, but probably not 66 since most new motherboards all support ATA100 or 133.

As far as cache is concerned, that pretty much depends on the individual drive and who makes it. I've seen both ATA and SATA drives with up to 8MB of cache (They might make them with more now? I dont now.)

Anyway, I guess you can see where I'm going with that. You'd be looking at a current standard of 8MB cache, as compared to 4MB and 2MB on older models of drives.

It's hard to say how specific he wants you to be there... there are lots of things to keep in mind, and the types/capacities/capabilities can be a lot more detailed and complex...particularly when you are talking about SCSI drives.

BtEO · Post by **BtEO** » Tue Oct 25, 2005 9:13 pm

[quote="MasteR";p="555772"]A sector is a sector, not a block. I have never heard anyone refer to a sector and use the word block. Block has always been a filesystem thing to me.

But that's just me.[/quote]I suspect she's translating from the greek, as such you can't rely on the accuracy of terminology that might use common words such as sector and block.

Post by **Martin Blank** » Wed Oct 26, 2005 3:44 am

http://www.storagereview.com

Great resource for specs and performance of hard drives.

lifedeath · Post by **lifedeath** » Wed Oct 26, 2005 10:08 am

anyway, tnxs guys for the help.

I sented it yesterday.

mm...Martin, i'll see that also.

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