Eh stupid Q. What's the max HDD size for ATA 100 spec?

[thirdlegstump]

I know sometimes it depends on bios but in general..?

 

[Mirko]

128GiB (137GB)

 

[Promethply]

If you mean the max HD capacity available in the market that comes in PATA, then the Hitachi Deskstar comes with the 7K500 model in PATA version with a 500GB capacity.

 

[thirdlegstump]

Got it. Thanks.

 

[Pariah]

144 petabytes

Theoretically, anyway.

 

[Promethply]

Got it. Thanks.

🙂

 

[Bozo Galora]

http://www.xbitlabs.com/articles/storage/display/ata-100.html
http://www.storagereview.com/guide2000/ref/hdd/if/ide/stdATA6.html

ATA100 (ATA/ATAPI 5) is 28 bits (137 GB base 10)
ATA133 (ATA/ATAPI 6) is 48 bits or 144 Petabytes (144 million GB)
http://www.48bitlba.com/

Edited in below post

ATA66 is 28 bit
ATA100 is 48 bit
ATA133 (Maxtor) is 48 bit native
sorry bout that - lol

 

[thirdlegstump]

This makes no sense. If ATA100 can only go up to 137GB, why is Seagate's higher capacity IDE drives still ATA100?

 

[The Pentium Guy]

Originally posted by: Mirko
128GiB (137GB)

What's GiB?

 

[Bozo Galora]

Originally posted by: deathkoba
This makes no sense. If ATA100 can only go up to 137GB, why is Seagate's higher capacity IDE drives still ATA100?

Damn, I always do that
ATA/ATAPI 6 is udma5 (100)
ATA/ATAPI 7 is udma6 (133)
Both 48 bit
The transfer protocol is one number LESS than the INT13 spec - screws me up every time.

http://www.ata-atapi.com/hist.htm

 

[RichUK]

Originally posted by: Pariah
144 petabytes

Theoretically, anyway.

that depends on the filing system, and that 144 petabytes is based on the theoretical capacity of the NTFS filing system

 

[Pariah]

48bit addressing was developed after the release of ATA 6, so it was not included in the spec. However, any ATA controller can support 48bit addressing, and any ATA100 capable controller (add-in or onboard) released in about the last 5 years or so supports 48bit addressing.

There is no ATA 7 either. It was never ratified, which is why Maxtor is the only one with ATA 133 drives.

that depends on the filing system, and that 144 petabytes is based on the theoretical capacity of the NTFS filing system

The file system has absolutely nothing to do with the maximum attainable capacity of a hard drive.

 

[HaelWho]

Originally posted by: The Pentium Guy

Originally posted by: Mirko
128GiB (137GB)

What's GiB?

http://en.wikipedia.org/wiki/Gibibyte

 

[RichUK]

Originally posted by: Pariah
48bit addressing was developed after the release of ATA 6, so it was not included in the spec. However, any ATA controller can support 48bit addressing, and any ATA100 capable controller (add-in or onboard) released in about the last 5 years or so supports 48bit addressing.

There is no ATA 7 either. It was never ratified, which is why Maxtor is the only one with ATA 133 drives.

that depends on the filing system, and that 144 petabytes is based on the theoretical capacity of the NTFS filing system

The file system has absolutely nothing to do with the maximum attainable capacity of a hard drive.

yeah after reading a link above i realised i was a bit wrong .. although there is a limit that the file system can handle .. im not sure what it is but i could have sworn it was something like what you mentioned .. arh well .. good info anyways guys 🙂