HDD Capacity Restore

7dog123

Honorable
Feb 1, 2014
2
0
10,510
I'm trying to use the HDD Capacity Restore Program but it's not recognizing my external hard drive I'm using a fujitsu 120gb laptop hard drive. and my computer is only recognizing it as 111gb of space
 
Solution
AIUI, HDD Capacity Restore and similar tools send an ATA SET MAX ADDRESS commmand over the SATA/PATA interface. USB mass storage devices use a SCSI command set which does not have a similar command. AIUI, some USB bridge firmware supports ATA "pass through" whereby ATA commands can be tunneled through to the drive, but I suspect that HDD Capacity Restore and similar tools probably don't support such features.

pauls3743

Distinguished
Unfortunately, that is correct. The hard drive is 120,000,000,000 bytes in size. However, Windows and other Operating Systems don't count is steps of 1000, they count in steps of 1024 so 1KB = 1024 bytes, 1MB = 1024KB, 1GB = 1024 MB. Due to this conversion you seem to lose some hard drive space along the way and it reports a 120GB hard drive as 111GB. The biggest the drive the bigger the apparent loss e.g. a 1TB hard drive reports as 931GB.
 

7dog123

Honorable
Feb 1, 2014
2
0
10,510


Alright but I'm also having a problem with the HDD Capacity Restore it's not even recognizing my external HDD the only thing it recognized was my CD Rom drive.
 
AIUI, HDD Capacity Restore and similar tools send an ATA SET MAX ADDRESS commmand over the SATA/PATA interface. USB mass storage devices use a SCSI command set which does not have a similar command. AIUI, some USB bridge firmware supports ATA "pass through" whereby ATA commands can be tunneled through to the drive, but I suspect that HDD Capacity Restore and similar tools probably don't support such features.
 
Solution